Updated on 2025/09/30

写真a

 
SUNATSUKI Yukinari
 
Organization
Scheduled update Associate Professor
Position
Associate Professor
External link

Degree

  • Doctor (Science) ( Kumamoto University )

Research Interests

  • coordination chemistry

  • 錯体化学

Research Areas

  • Nanotechnology/Materials / Inorganic/coordination chemistry

Education

  • Kumamoto University   自然科学研究科  

    1995.4 - 1998.3

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    Country: Japan

    Notes: 博士課程

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  • Kumamoto University   理学研究科  

    1993.4 - 1995.3

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    Country: Japan

    Notes: 修士課程

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  • Kumamoto University   理学部   化学科

    1989.4 - 1993.3

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    Country: Japan

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Research History

  • Okayama University   Advanced Science Research Center   Associate Professor   PhD

    2022.10

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    Country:Japan

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  • Okayama University   Advanced Science Research Center   Assistant Professor   PhD

    2004.4 - 2022.9

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    Country:Japan

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  • Postdoctoral Fellowships of Japan Society for the Promotion of Science   Postdoctoral Fellowships   PhD

    2002.4 - 2003.3

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    Country:Japan

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  • Research Institute for Production Development

    1998 - 2000

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Professional Memberships

 

Papers

  • Intramolecular [π4s + π4s] photocycloaddition of carbon- and nitrogen-bridged [32](1,4)naphthalenophanes Reviewed

    Yukiko Oguma, Masanori Yamamoto, Yukinari Sunatsuki, Hiromi Ota, Minoru Yamaji, Hideki Okamoto

    Photochemical & Photobiological Sciences   23 ( 8 )   1509 - 1519   2024.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    [32](1,4)Naphthalenophanes, bearing carbon-bridge chains (syn- and anti-NPs) and nitrogen-bridge chains (syn- and anti-ANPs), were synthesized, and their X-ray structures and photoreactions were investigated. The intramolecular separation distance between the naphthalene cores for ANPs was shorter than that for NPs, suggesting that intramolecular interactions between the naphthalene rings  were more efficient for ANPs compared to NPs. Upon photoirradiation at 300 nm, anti-NP, syn-ANP and anti-ANP produced the corresponding intramolecular [π4s + π4s] cycloadducts, whereas syn-NP gave an unidentified complex product mixture. Quantum yields for the photo-consumption (ΦPC) of NPs and ANPs were evaluated to quantitatively compare their photoreactivity. The ΦPC values of ANPs were approximately two-fold higher than those of ANPs.Noteworthily, the ΦPC value of syn-ANP was estimated to be unity. Based on these results we discuss the effects of the alignments of the naphthalene cores (antivs. syn) and the bridging elements (C-bridge vs. N-bridge) on the photoreaction efficiencies of [32](1,4)naphthalenophanes.

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    DOI: 10.1007/s43630-024-00610-w

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    Other Link: https://link.springer.com/article/10.1007/s43630-024-00610-w/fulltext.html

  • Synthesis and characterization of iron(II) complex with unsymmetrical heterocyclic (2-pyridyl)(4-imidazolyl)azine Reviewed

    Kennedy Mawunya Hayibor, Yukinari Sunatsuki, Takayoshi Suzuki

    Inorganica Chimica Acta   564   121937 - 121937   2024.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.ica.2024.121937

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  • Development of a novel AAK1 inhibitor via Kinobeads-based screening Reviewed

    Akari Yoshida, Satomi Ohtsuka, Fumiya Matsumoto, Tomoyuki Miyagawa, Rei Okino, Yumeya Ikeda, Natsume Tada, Akira Gotoh, Masaki Magari, Naoya Hatano, Ryo Morishita, Ayano Satoh, Yukinari Sunatsuki, Ulf J. Nilsson, Teruhiko Ishikawa, Hiroshi Tokumitsu

    Scientific Reports   14 ( 1 )   6723   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    A chemical proteomics approach using Ca2+/calmodulin-dependent protein kinase kinase (CaMKK) inhibitor–immobilized sepharose (TIM-063-Kinobeads) identified main targets such as CaMKKα/1 and β/2, and potential off-target kinases, including AP2-associated protein kinase 1 (AAK1), as TIM-063 interactants. Because TIM-063 interacted with the AAK1 catalytic domain and inhibited its enzymatic activity moderately (IC50 = 8.51 µM), we attempted to identify potential AAK1 inhibitors from TIM-063-derivatives and found a novel AAK1 inhibitor, TIM-098a (11-amino-2-hydroxy-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one) which is more potent (IC50 = 0.24 µM) than TIM-063 without any inhibitory activity against CaMKK isoforms and a relative AAK1-selectivity among the Numb-associated kinases family. TIM-098a could inhibit AAK1 activity in transfected cultured cells (IC50 = 0.87 µM), indicating cell-membrane permeability of the compound. Overexpression of AAK1 in HeLa cells significantly reduced the number of early endosomes, which was blocked by treatment with 10 µM TIM-098a. These results indicate TIM-063-Kinobeads-based chemical proteomics is efficient for identifying off-target kinases and re-evaluating the kinase inhibitor (TIM-063), leading to the successful development of a novel inhibitory compound (TIM-098a) for AAK1, which could be a molecular probe for AAK1. TIM-098a may be a promising lead compound for a more potent, selective and therapeutically useful AAK1 inhibitor.

    DOI: 10.1038/s41598-024-57051-9

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    Other Link: https://www.nature.com/articles/s41598-024-57051-9

  • The effect of solvent molecules on crystallisation of heterotrinuclear MII–TbIII–MII complexes with tripodal nonadentate ligands

    Kazuma Takahara, Yuki Horino, Koki Wada, Hiromu Sakata, Daichi Tomita, Yukinari Sunatsuki, Hiroshi Isobe, Masaaki Kojima, Takayoshi Suzuki

    CrystEngComm   26 ( 7 )   1004 - 1014   2024

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    Crystallisation behaviors of M–Tb–M complexes were varied depending on the solvents, exhibiting absolute spontaneous resolution or formation of meso-type isomers.

    DOI: 10.1039/d3ce01192e

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  • Crystallization Behavior of Heterotrinuclear ZnII–LnIII–ZnII Complexes Bearing Two Tripodal Nonadentate Ligands: Possibility for Absolute Spontaneous Resolution

    Kazuma Takahara, Yuki Horino, Koki Wada, Hiromu Sakata, Yukinari Sunatsuki, Masaaki Kojima, Takayoshi Suzuki

    Crystal Growth & Design   23 ( 7 )   5244 - 5256   2023.6

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.cgd.3c00458

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  • Characterization and interconversion of two crystal forms of NEt-3IB, a retinoid X receptor agonist Reviewed

    Takamura, Yuta, Kikuzawa, Shota, Fujihara, Michiko, Sunatsuki, Yukinari, Higaki, Kazutaka, Kakuta, Hiroki

    Chemical & Pharmaceutical Bulletin   71 ( 4 )   282 - 288   2023.4

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  • Structural comparison of geometrical isomers of N'-(1H-imidazol-4-ylmethylene)picolinohydrazide and their mononuclear and dinuclear cobalt(III) complexes Reviewed

    Daniel K.B. Acheampong, Yukinari Sunatsuki, Takayoshi Suzuki

    Results in Chemistry   5   100798 - 100798   2023.1

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    DOI: 10.1016/j.rechem.2023.100798

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  • Selective Formation of Unsymmetric Multidentate Azine-Based Ligands in Nickel(II) Complexes Reviewed

    Kennedy Mawunya Hayibor, Yukinari Sunatsuki, Takayoshi Suzuki

    MOLECULES   27 ( 20 )   6788 - 6788   2022.10

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    DOI: 10.3390/molecules27206788

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  • Crystal Structure of a 1,3-Diyne Iron Complex, [(eta(5)-Cp)(2)Fe-2(mu-CO) (CO) {mu, eta(1): eta(1): eta(2)-(C=O) C (C6H5)=C-C CC6H5)}]center dot 0.5 (C2H4Cl2), Formed by C-C Bond Coupling with Carbon Monoxide Reviewed

    Shinsaku Yamazaki, Yukinari Sunatsuki, Tsutomu Mizuta, Toshiaki Yonemura

    X-RAY STRUCTURE ANALYSIS ONLINE   38   27 - 28   2022.2

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  • Field-induced single-ion magnet behaviors in 1-dimensionally assembled tetrahedral cobalt(II) complexes with halide donors Reviewed

    Ryoji Mitsuhashi, Satoshi Hosoya, Yukinari Sunatsuki, Takayoshi Suzuki, Masahiro Mikuriya

    INORGANICA CHIMICA ACTA   529   120667 - 120667   2022.1

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    DOI: 10.1016/j.ica.2021.120667

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  • Synthesis of Nilotinin M3: An Ellagitannin Containing an Isodehydrodigalloyl Group Reviewed

    Haruka Imai, Yuta Kanzaka, Yukinari Sunatsuki, Hitoshi Abe

    SYNTHESIS-STUTTGART   53 ( 19 )   3630 - 3638   2021.10

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    DOI: 10.1055/a-1508-9541

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  • Versatility of coordination modes of N'-(pyridin-2-ylmethylene) picolinoylhydrazidate in the mononuclear cobalt(III) and polynuclear cobalt(II) complexes Reviewed

    Daniel K. B. Acheampong, Kei Kirihara, Rina Ogawa, Yukinari Sunatsuki, Takayoshi Suzuki

    INORGANICA CHIMICA ACTA   525   120464 - 120464   2021.9

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    DOI: 10.1016/j.ica.2021.120464

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  • Zero-field slow relaxation of magnetization in cobalt(ii) single-ion magnets: suppression of quantum tunneling of magnetization by tailoring the intermolecular magnetic coupling Reviewed

    Ryoji Mitsuhashi, Satoshi Hosoya, Takayoshi Suzuki, Yukinari Sunatsuki, Hiroshi Sakiyama, Masahiro Mikuriya

    RSC ADVANCES   10 ( 71 )   43472 - 43479   2020.12

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    DOI: 10.1039/d0ra08286d

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  • Sterically Demanding 8-(Diphenylphosphino)quinoline Complexes of Group 10 Metal(II): Synthesis, Crystal Structures, and Properties in Solution Reviewed

    Masatoshi Mori, Yukinari Sunatsuki, Takayoshi Suzuki

    INORGANIC CHEMISTRY   59 ( 24 )   18225 - 18240   2020.12

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    DOI: 10.1021/acs.inorgchem.0c02706

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  • Iron(II) Complexes Having Dinuclear Mesocate or Octanuclear Bicapped Trigonal Prism Structures Dependent on the Rigidity of Bis(bidentate) Schiff Base Ligands Containing Imidazole Groups Reviewed

    Tsubasa Tanaka, Yukinari Sunatsuki, Takayoshi Suzuki

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   93 ( 3 )   427 - 437   2020.3

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    DOI: 10.1246/bcsj.20190360

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  • Synthesis and magnetic properties of tetrahedral tetranuclear iron(II) complexes with bis(bidentate)-type Schiff bases containing imidazole groups Reviewed

    Tsubasa Tanaka, Yukinari Sunatsuki, Takayoshi Suzuki

    INORGANICA CHIMICA ACTA   502   119373 - 119373   2020.3

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    DOI: 10.1016/j.ica.2019.119373

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  • Transition-metal(II) complexes with a tripodal hexadentate ligand, 1,1,1-tris[2-aza-3-(imidazol-4-yl)prop-2-enyl]ethane, exhibiting incomplete total or absolute spontaneous resolution Reviewed

    Misaki Matsushima, Koki Wada, Yuki Horino, Kazuma Takahara, Yukinari Sunatsuki, Takayoshi Suzuki

    CRYSTENGCOMM   22 ( 3 )   458 - 466   2020.1

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    DOI: 10.1039/c9ce01864f

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  • Tetra- and dinuclear manganese complexes of xanthene-bridged O,N,O-Schiff bases with 3-hydroxypropyl or 2-hydroxybenzyl groups: ligand substitution at a triply bridging site Reviewed

    Ogawa Rina, Suzuki Takayoshi, Hirotsu Masakazu, Nishi Noriyuki, Shimizu Yuu, Sunatsuki Yukinari, Teki Yoshio, Kinoshita Isamu

    DALTON TRANSACTIONS   48 ( 36 )   13622 - 13629   2019.9

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    DOI: 10.1039/c9dt03007g

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  • Hydrogen-bonding interactions and magnetic relaxation dynamics in tetracoordinated cobalt(ii) single-ion magnets Reviewed

    Mitsuhashi Ryoji, Hosoya Satoshi, Suzuki Takayoshi, Sunatsuki Yukinari, Sakiyama Hiroshi, Mikuriya Masahiro

    DALTON TRANSACTIONS   48 ( 2 )   395 - 399   2019.1

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    DOI: 10.1039/c8dt04537b

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  • trans-Dichloridotetrakis(pyridine-κN)rhodium(III) chloride methanol tetrasolvate Reviewed

    Takayoshi Suzuki, Misaki Tsujino, Yukinari Sunatsuki

    IUCrData   3 ( 10 )   x181482   2018.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography ({IUCr})  

    DOI: 10.1107/S2414314618014827

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  • Schiff Base Ligands Derived from l-Histidine Methyl Ester: Characterization, Racemization, and Dimerization of Their Transition-Metal Complexes Reviewed

    Rina Ogawa, Yukinari Sunatsuki, Takayoshi Suzuki

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 16 )   1733 - 1742   2018.4

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    DOI: 10.1002/ejic.201800137

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  • Polymorphs of spin-crossover iron(II) complex fac-[Fe-II(HLn-Pr)(3)]Cl.PF6 (HLn-pr=2-methylimidazol-4-yl-methylideneamino-n-propyl): Assembly structures and scan rate dependent spin-crossover properties with thermal hysteresis Reviewed

    Takahiro Ueno, Yuto Ii, Takeshi Fujinami, Naohide Matsumoto, Seiichiro Iijima, Yukinari Sunatsuki

    POLYHEDRON   136   13 - 22   2017.11

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    DOI: 10.1016/j.poly.2017.03.028

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  • Circular and Chainlike Copper(II)-Lanthanide(III) Complexes Generated by Assembly Reactions of Racemic and Chiral Copper(II) Cross-Linking Ligand Complexes with Ln(III)(NO3)(3)center dot 6H(2)O (Ln(II) = Gd-III, Tb-III, Dy-III) Reviewed

    Takahiro Ueno, Takeshi Fujinami, Naohide Matsumoto, Masaki Furusawa, Ryo Irie, Nazzareno Re, Takuya Kanetomo, Takayuki Ishida, Yukinari Sunatsuki

    INORGANIC CHEMISTRY   56 ( 3 )   1679 - 1695   2017.2

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    DOI: 10.1021/acs.inorgchem.6b02668

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  • Thyminato-bridged cyclic tetranuclear rhodium(III) complexes containing a sodium, calcium or lanthanoid ion as a template metal core Reviewed

    Mika Sakate, Ayana Kashima, Haruka Hosoda, Yukinari Sunatsuki, Hiromi Ota, Akira Fuyuhiro, Takayoshi Suzuki

    INORGANICA CHIMICA ACTA   452   205 - 213   2016.10

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    DOI: 10.1016/j.ica.2016.01.023

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  • Preparation, structures and properties of manganese complexes containing amine-(amido or amidato)-phenolato type ligands Reviewed

    Ryoji Mitsuhashi, Rina Ogawa, Ryuta Ishikawa, Takayoshi Suzuki, Yukinari Sunatsuki, Satoshi Kawata

    INORGANICA CHIMICA ACTA   447   113 - 120   2016.6

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    DOI: 10.1016/j.ica.2016.03.036

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  • Luminescent Dy-III single ion magnets with same N6O3 donor atoms but different donor atom arrangements, 'fac'-[Dy-III(HLDL-ala)(3)]center dot 8H(2)O and 'mer'-[Dy-III(HLDL-phe)(3)]center dot 7H(2)O Reviewed

    Daisuke Hamada, Takeshi Fujinami, Suguru Yamauchi, Naohide Matsumoto, Naotaka Mochida, Takayuki Ishida, Yukinari Sunatsuki, Masanobu Tsuchimoto, Cecilia Coletti, Nazzareno Re

    POLYHEDRON   109   120 - 128   2016.4

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    DOI: 10.1016/j.poly.2016.01.048

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  • Binuclear tetra-acetate bridged Gd(III) complex [Gd-2(mu(2)-O2CMe)(4)(H2L)(2)] (ClO4)(2)center dot 2H(2)O center dot 2MeOH (H2L = bis(5-methylimidazol-4-yl-methylideneaminopropyl) methylamine): Synthesis, structure, and magnetic properties Reviewed

    Makoto Ito, Daisuke Hamada, Hiromasa Ono, Naohide Matsumoto, Yukinari Sunatsuki, Nazzareno Re

    INORGANICA CHIMICA ACTA   443   274 - 278   2016.3

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    DOI: 10.1016/j.ica.2015.12.029

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  • Synthesis, hydrogen-bonded 1D structure, and abrupt spin transition between high-spin (HS) and an ordered [HS-HS-HS-LS] of a mononuclear iron(III) complex [Fe-III(Him)(2)(4-MeOhapen)]CF3SO3 (Him = imidazole, 4-MeOhapen = N,N '-bis-(2-oxy-4-methoxyacetophenylidene)ethylenediamine) Reviewed

    Kyohei Miyano, Takahiro Nishida, Hiromasa Ono, Daisuke Hamada, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki

    INORGANICA CHIMICA ACTA   439   49 - 54   2016.1

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    DOI: 10.1016/j.ica.2015.09.031

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  • Abrupt Spin Transition and Chiral Hydrogen-Bonded One-Dimensional Structure of Iron(III) Complex [Fe-III(Him)(2)(hapen)]SbF6 (Him = imidazole, H(2)hapen = N, N '-bis(2-hydroxyacetophenylidene) ethylenediamine)

    Takahiro Ueno, Kyohei Miyano, Daisuke Hamada, Hiromasa Ono, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki

    MAGNETOCHEMISTRY   1 ( 1 )   72 - 82   2015.12

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    DOI: 10.3390/magnetochemistry1010072

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  • Scan Rate Dependent Spin Crossover Iron(II) Complex with Two Different Relaxations and Thermal Hysteresis fac-[Fe-II(HLn-Pr)(3)]Cl center dot PF6 (HLn-Pr=2-Methylimidazol-4-yl-methylideneamino-n-propyl)

    Takeshi Fujinami, Koshiro Nishi, Daisuke Hamada, Keishiro Murakami, Naohide Matsumoto, Seiichiro Iijima, Masaaki Kojima, Yukinari Sunatsuki

    INORGANIC CHEMISTRY   54 ( 15 )   7291 - 7300   2015.8

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    DOI: 10.1021/acs.inorgchem.5b00701

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  • Syntheses, hydrogen-bonded assembly structures, and spin crossover properties of [Fe-III(Him)(2)(n-MeOhapen)]PF6 (Him = imidazole and n-MeOhapen = N,N '-bis(n-methoxy-2-oxyacetophenylidene)ethylenediamine); n=4, 5, 6)

    Takeshi Fujinami, Mizuki Ikeda, Masataka Koike, Naohide Matsumoto, Tomohiro Oishi, Yukinari Sunatsuki

    INORGANICA CHIMICA ACTA   432   89 - 95   2015.6

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    DOI: 10.1016/j.ica.2015.03.034

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  • Synthesis, structure, and spin equilibrium properties of [(FeX2L)-X-III]BPh4 center dot solvents ( X=1-methylimidazole and imidazole; L = N, N'-bis(3-ethoxycarbonylsalicylidene) ethylenediamine)

    Takeshi Fujinami, Daisuke Hamada, Naohide Matsumoto, Yukinari Sunatsuki, Ryo Irie

    INORGANICA CHIMICA ACTA   430   239 - 244   2015.5

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    DOI: 10.1016/j.ica.2015.03.008

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  • Hydrogen-bonded 2D network structure and abrupt spin transition with thermal hysteresis of iron(III) complexes [Fe-III(Him)(2) (3-MeOsalen)]center dot H2OEtOH center dot X (Him = imidazole, 3-MeOsalen = N,N '-bis (3-methoxysalicylidene)ethylenediaminato, and X = PF6, AsF6, SbF6)

    Keita Hanahara, Hiromasa Ono, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki

    INORGANICA CHIMICA ACTA   429   93 - 98   2015.4

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    DOI: 10.1016/j.ica.2015.01.047

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  • Oxidation and Deprotonation of a Ruthenium(II) Complex with Quinoline-2-carbaldehyde (Pyridine-2-carbonyl)hydrazone and Formation of Hydrazonato-Bridged Heterodimetallic Complexes

    Asami Mori, Takayoshi Suzuki, Yukinari Sunatsuki, Masaaki Kojima, Kiyohiko Nakajima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   88 ( 3 )   480 - 489   2015.3

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    DOI: 10.1246/bcsj.20140381

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  • Palladium(II) mononuclear and palladium(II)/ruthenium(II) heterodinuclear complexes containing 2-quinolyl-substituted (pyridine-2-carbonyl)hydrazone

    Asami Mori, Takayoshi Suzuki, Yuichi Nakatani, Yukinari Sunatsuki, Masaaki Kojima, Kiyohiko Nakajima

    DALTON TRANSACTIONS   44 ( 36 )   15757 - 15760   2015

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    DOI: 10.1039/c5dt02345a

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  • Thyminate(2-)-bridged cyclic tetranuclear rhodium(III) complexes formed by a template of a sodium, calcium or lanthanoid ion

    Ayana Kashima, Mika Sakate, Hiromi Ota, Akira Fuyuhiro, Yukinari Sunatsuki, Takayoshi Suzuki

    CHEMICAL COMMUNICATIONS   51 ( 10 )   1889 - 1892   2015

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    DOI: 10.1039/c4cc09087j

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  • Crystal Field Splitting of the Ground State of Terbium(III) and Dysprosium(III) Complexes with a Triimidazolyl Tripod Ligand and an Acetate Determined by Magnetic Analysis and Luminescence

    Seira Shintoyo, Keishiro Murakami, Takeshi Fujinami, Naohide Matsumoto, Naotaka Mochida, Takayuki Ishida, Yukinari Sunatsuki, Masayuki Watanabe, Masanobu Tsuchimoto, Jerzy Mrozinski, Cecilia Coletti, Nazzareno Re

    INORGANIC CHEMISTRY   53 ( 19 )   10359 - 10369   2014.10

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    DOI: 10.1021/ic501453h

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  • Chiral Crystal Structure of a P2(1)2(1)2(1) Kryptoracemate Iron(II) Complex with an Unsymmetric Azine Ligand and the Observation of Chiral Single Crystal Circular Dichroism

    Yukinari Sunatsuki, Kunihiro Fujita, Hisashi Maruyama, Takayoshi Suzuki, Hiroyuki Ishida, Masaaki Kojima, Robert Glaser

    CRYSTAL GROWTH & DESIGN   14 ( 8 )   3692 - 3695   2014.8

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    DOI: 10.1021/cg500635q

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  • Synthesis, Structure, Luminescence, and Magnetic Properties of a Single-Ion Magnet "mer"-[Tris(N-[(imidazol-4-yl)-methylidene]-DL-phenylalaninato)terbium(III) and Related "fac"-DL-Alaninato Derivative

    Suguru Yamauchi, Takeshi Fujinami, Naohide Matsumoto, Naotaka Mochida, Takayuki Ishida, Yukinari Sunatsuki, Masayuki Watanabe, Masanobu Tsuchimoto, Cecilia Coletti, Nazzareno Re

    INORGANIC CHEMISTRY   53 ( 12 )   5961 - 5971   2014.6

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    DOI: 10.1021/ic5001599

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  • Chiral Incomplete-cubane-type (Mn3O4)-O-III Clusters Containing a mu(3)-Methoxido or Hydroxido

    Marina Inoue, Takayoshi Suzuki, Yukinari Sunatsuki, Akira Fuynhiro, Nazzareno Re

    CHEMISTRY LETTERS   43 ( 6 )   784 - 786   2014.6

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    DOI: 10.1246/cl.140067

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  • Synthesis, Structure, and Magnetic Property of a New Mononuclear Iron(II) Spin Crossover Complex with a Tripodal Ligand Containing Three 1,2,3-Triazole Groups

    Hiroaki Hagiwara, Ryo Minoura, Shohei Okada, Yukinari Sunatsuki

    CHEMISTRY LETTERS   43 ( 6 )   950 - 952   2014.6

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    DOI: 10.1246/cl.140133

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  • Abrupt Spin Transition with Thermal Hysteresis of Iron(III) Complex [Fe-III(Him)(2)(hapen)]AsF6 (Him = Imidazole, H(2)hapen = N,N '-Bis(2-hydroxyacetophenylidene)ethylenediamine)

    Takeshi Fujinami, Masataka Koike, Naohide Matsumoto, Yukinari Sunatsuki, Atsushi Okazawa, Norimichi Kojima

    INORGANIC CHEMISTRY   53 ( 4 )   2254 - 2259   2014.2

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  • Linkage and Geometrical Isomers of Dichloridobis(triphenylphosphine)ruthenium(II) Complexes with Quinoline-2-carbaldehyde (Pyridine-2-carbonyl)hydrazone: Their Molecular Structures and Electrochemical and Spectroscopic Properties

    Asami Mori, Takayoshi Suzuki, Yukinari Sunatsuki, Atsushi Kobayashi, Masako Kato, Masaaki Kojima, Kiyohiko Nakajima

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   2014 ( 1 )   186 - 197   2014.1

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    DOI: 10.1002/ejic.201301150

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  • Molecular structure and spectroscopic properties of [Co( Me(2)dtc)(2) {(Ph2PO)(2)BF2}] (Me(2)dtc = N,N-dimethyldithiocarbamate)

    Kyohei Sakano, Syohei Yamaguchi, Takayoshi Suzuki, Yukinari Sunatsuki, Masaaki Kojima, Kazuo Kashiwabara

    INORGANICA CHIMICA ACTA   410   122 - 125   2014.1

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    DOI: 10.1016/j.ica.2013.10.028

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  • Preparation, crystal structures, and spectroscopic properties of cobalt(III) complexes bearing 2,4-pentanedionate (acac(-)) and 2-cyanoethylphosphines: trans-[Co(acac)(2){P(CH2CH2CN)(n)Ph3-n}]BF4 (n=1-3)

    Keiko Kihara, Syohei Yamaguchi, Yasuo Kawahata, Masakazu Kita, Takayoshi Suzuki, Yukinari Sunatsuki, Masaaki Kojima, Kazuo Kashiwabara

    POLYHEDRON   67   111 - 114   2014.1

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    DOI: 10.1016/j.poly.2013.09.001

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  • Synthesis, Structure, Luminescent, and Magnetic Properties of Carbonato-Bridged Zn(2)(II)Ln(2)(II) Complexes [(mu(4)-CO3)(2){Zn(II)L(n)Ln(II)(NO3)}(2)) (Ln(III) = Gd-III, Tb-III, Dy-III; L-1 = N,N'-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, L-2 = N,N'-Bis(3-ethoxy-2-oxybenzylidene)-1,3-propanediaminato)

    Kiyomi Ehama, Yusuke Ohmichi, Soichiro Sakamoto, Takeshi Fujinami, Naohide Matsumoto, Naotaka Mochida, Takayuki Ishida, Yukinari Sunatsuki, Masanobu Tsuchimoto, Nazzareno Re

    INORGANIC CHEMISTRY   52 ( 21 )   12828 - 12841   2013.11

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    DOI: 10.1021/ic4022273

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  • Four-Electron Oxidative Dehydrogenation Induced by Proton-Coupled Electron Transfer in Ruthenium(III) Complex with 2-(1,4,5,6-Tetrahydropyrimidin-2-yl)phenolate

    Ryoji Mitsuhashi, Takayoshi Suzuki, Yukinari Sunatsuki

    INORGANIC CHEMISTRY   52 ( 17 )   10183 - 10190   2013.9

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    DOI: 10.1021/ic401667v

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  • Carbonato-Bridged NO(2)(II)Ln(2)(III) (Ln(III) = Gd-III, Tb-III, Dy-III) Complexes Generated by Atmospheric CO2 Fixation and Their Single-Molecule-Magnet Behavior: [(mu(4)-CO3)(2){Ni-II(3-MeOsaltn)(MeOH or H2O)Ln(III)(NO3)}(2)]center dot solvent [3-MeOsaltn = N,N '-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato]

    Soichiro Sakamoto, Takeshi Fujinami, Koshiro Nishi, Naohide Matsumoto, Naotaka Mochida, Takayuki Ishida, Yukinari Sunatsuki, Nazzareno Re

    INORGANIC CHEMISTRY   52 ( 12 )   7218 - 7229   2013.6

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    DOI: 10.1021/ic4008312

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  • Syntheses, Structures, and Magnetic Properties of Acetato- and Diphenolato-Bridged 3d-4f Binuclear Complexes. [M(3-MeOsaltn)(MeOH)(x)(ac)Ln(hfac)(2)] (M = zn(II), Cu-II, Ni-II, Co-II; Ln = La-III, Gd-III, Tb-III, Dy-III; 3-MeOsaltn = N,N '-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; ac = Acetato; hfac = Hexafluoroacetylacetonato; x=0 or 1)

    Masaaki Towatari, Koshiro Nishi, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Naotaka Mochida, Takayuki Ishida, Nazzareno Re, Jerzy Mrozinski

    INORGANIC CHEMISTRY   52 ( 10 )   6160 - 6178   2013.5

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    DOI: 10.1021/ic400594u

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  • Syntheses, three types of hydrogen-bonded assembly structures, and magnetic properties of [Fe-III(Him)(2)(hapen)]Y center dot solvent (Him = imidazole, hapen = N,N '-bis(2-hydroxyacetophenylidene)ethylenediamine, Y = BPh4-, CF3SO3-, PF6-, ClO4-, and BF4-)

    Masataka Koike, Keishiro Murakami, Takeshi Fujinami, Koshiro Nishi, Naohide Matsumoto, Yukinari Sunatsuki

    INORGANICA CHIMICA ACTA   399   185 - 192   2013.4

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    DOI: 10.1016/j.ica.2013.01.021

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  • Hydrogen-bonding interactions, geometrical selectivity and spectroscopic properties of cobalt(III) complexes with unsymmetrical tridentate amine-amidato-phenolato type ligands

    Ryoji Mitsuhashi, Takayoshi Suzuki, Yukinari Sunatsuki, Masaaki Kojima

    INORGANICA CHIMICA ACTA   399   131 - 137   2013.4

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    DOI: 10.1016/j.ica.2013.01.011

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  • Facial and meridional geometrical isomers of tris(2-methylimidazol-4-yl-methylideneaminobenzyl)iron(II) with Delta- and Lambda-con figurations and their enantio-discriminative assembly via imidazole ... chloride hydrogen bonding and spin cross-over properties (Reprinted from Polyhedron, vol 44, pg 194, 2012)

    Daisuke Furushou, Tomotaka Hashibe, Takeshi Fujinami, Koshiro Nishi, Hiroaki Hagiwara, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Seiichiro Iijima

    POLYHEDRON   52   1489 - 1498   2013.3

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  • Stepwise Spin Transition and Hysteresis of a Tetrameric Iron(II) Complex, fac-[Tris(2-methylimidazol-4-ylmethylidene-n-hexylamine)]iron(II) Chloride Hexafluorophosphate, Assembled by Imidazole center dot center dot center dot Chloride Hydrogen Bonds

    Koshiro Nishi, Hiroki Kondo, Takeshi Fujinami, Naohide Matsumoto, Seiichiro Iijima, Malcolm A. Halcrow, Yukinari Sunatsuki, Masaaki Kojima

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 5-6 )   927 - 933   2013.2

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    DOI: 10.1002/ejic.201201298

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  • Comparison of ancillary ligand effects between 2,2 '-bipyridine and 2-(2 '-pyridyl)phenyl in the linkage and bridging isomerism of 5-methyltetrazolato iridium(III) and/or rhodium(III) complexes

    Asuka Takayama, Takayoshi Suzuki, Miyu Ikeda, Yukinari Sunatsuki, Masaaki Kojima

    DALTON TRANSACTIONS   42 ( 40 )   14556 - 14567   2013

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    DOI: 10.1039/c3dt51667a

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  • Carbonate-bridged tetranuclear (Ni2Gd2III)-Gd-II complex generated by atmospheric CO2 fixation

    Soichiro Sakamoto, Suguru Yamauchi, Hiroaki Hagiwara, Naohide Matsumoto, Yukinari Sunatsuki, Nazzareno Re

    INORGANIC CHEMISTRY COMMUNICATIONS   26   20 - 23   2012.12

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    DOI: 10.1016/j.inoche.2012.08.022

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  • Synthesis, structures, and magnetic properties of iron(II) complexes, [Fe-II(HLMe)(2)] (ClO4)(2) and its ethanol adduct [Fe-II(HLMe)(2)](ClO4)(2)center dot EtOH (HLMe=2-methylimidazol-4-yl-methylideneamino-2-ethylpyridine): Their structural distortion and spin states

    Hiroaki Hagiwara, Suguru Yamauchi, Naohide Matsumoto, Yukinari Sunatsuki

    POLYHEDRON   48 ( 1 )   110 - 116   2012.11

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    DOI: 10.1016/j.poly.2012.09.010

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  • Preparation, Crystal Structures, and Behavior in Solution of Cobalt(III) Complexes Containing 2-Cyanoethylphosphines: trans-[Co(Me2dtc)(2){P(CH2CH2CN)(n)Ph3-n}]BF4 (n=1-3; Me(2)dtc(-): N,N-Dimethyldithiocarbamate)

    Keiko Kihara, Takayoshi Suzuki, Masakazu Kita, Yukinari Sunatsuki, Masaaki Kojima, Hideo D. Takagi

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   85 ( 10 )   1160 - 1166   2012.10

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    DOI: 10.1246/bcsj.20120148

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  • Facial and meridional geometrical isomers of tris(2-methylimidazol-4-yl-methylideneaminobenzyl)iron(II) with Delta- and Lambda-configurations and their enantio-discriminative assembly via imidazole center dot center dot center dot chloride hydrogen bonding and spin cross-over properties

    Daisuke Furushou, Tomotaka Hashibe, Takeshi Fujinami, Koshiro Nishi, Hiroaki Hagiwara, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Seiichiro Iijima

    POLYHEDRON   44 ( 1 )   194 - 203   2012.8

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    DOI: 10.1016/j.poly.2012.06.085

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  • Enantioselective assembling into tetra- and octanuclear structures by deprotonation of copper(II) complexes of N-[(5-methylimidazol-4-yl)methylidene]-DL-phenylalanine and its L-form ligand

    Tomohiro Oishi, Tomotaka Hashibe, Saori Takahashi, Hiroaki Hagiwara, Naohide Matsumoto, Yukinari Sunatsuki

    POLYHEDRON   33 ( 1 )   209 - 217   2012.2

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    DOI: 10.1016/j.poly.2011.11.024

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  • Conglomerate crystallization, chiral recognition and spin-crossover in a host-guest complex consisting of Fe-III complexes (host) and [Cr(ox)(3)](3-) (guest)

    Yukinari Sunatsuki, Sho Miyahara, Yuu Sasaki, Takayoshi Suzuki, Masaaki Kojima, Naohide Matsumoto

    CRYSTENGCOMM   14 ( 20 )   6377 - 6380   2012

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    DOI: 10.1039/c2ce25612f

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  • A Hydrogen Bond Motif Giving a Variety of Supramolecular Assembly Structures and Spin-Crossover Behaviors

    Koshiro Nishi, Naohide Matsumoto, Seiichiro Iijima, Malcolm A. Halcrow, Yukinari Sunatsuki, Masaaki Kojima

    INORGANIC CHEMISTRY   50 ( 22 )   11303 - 11305   2011.11

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    DOI: 10.1021/ic201993z

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  • Chiral spin crossover iron(II) complex, fac-Lambda-[Fe-II(HLR)(3)](ClO4)(2)center dot EtOH (HLR=2-methylimidazol-4-yl-methylideneamino-R-(+)-1-methylphenyl)

    Tomotaka Hashibe, Takeshi Fujinami, Daisuke Furusho, Naohide Matsumoto, Yukinari Sunatsuki

    INORGANICA CHIMICA ACTA   375 ( 1 )   338 - 342   2011.9

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    DOI: 10.1016/j.ica.2011.05.032

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  • Geometric Selectivity, Hydrogen-Bonding Interaction, and Solvatochromism of Bis{N-(aminoalkyl)salicylamidato(2-)}cobaltate(III)

    Ryoji Mitsuhashi, Takayoshi Suzuki, Yukinari Sunatsuki, Masaaki Kojima

    CHEMISTRY LETTERS   40 ( 7 )   696 - 698   2011.7

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    DOI: 10.1246/cl.2011.696

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  • Synthesis, Characterization, and Chiral Assembly Structure of a Self-Complementary Iron(III) Complex, [Fe-III(H2L5-Me)(HL5-Me)](ClO4)(2)center dot EtOH (H2L5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine)

    Hiroaki Hagiwara, Koshiro Nishi, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Seiichiro Iijima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   84 ( 3 )   306 - 311   2011.3

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    DOI: 10.1246/bcsj.20100299

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  • Conformational effect of a spin crossover iron(II) complex: Bis[N-(2-methylimidazol-4-yl)methylidene-2-aminoethyl]propanediamineiron(II) perchlorate

    Hiroaki Hagiwara, Akitsugu Kawano, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Hiroshi Miyamae

    INORGANICA CHIMICA ACTA   367 ( 1 )   141 - 150   2011.2

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    DOI: 10.1016/j.ica.2010.12.016

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  • Assembly Structures and Spin Crossover Properties of Facial and Meridional Isomers of Tris[benzyl(2-methylimidazol-4-ylmethylidene)amine]iron(II) Chloride Hexafluorophosphate

    Daisuke Furusho, Koshiro Nishi, Tomotaka Hashibe, Takeshi Fujinami, Hiroaki Hagiwara, Naohide Matsumoto, Malcolm A. Halcrow, Seiichiro Iijima, Yukinari Sunatsuki, Masaaki Kojima

    CHEMISTRY LETTERS   40 ( 1 )   72 - 74   2011.1

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    DOI: 10.1246/cl.2011.72

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  • 1D and 2D assembly structures by imidazole center dot center dot center dot chloride hydrogen bonds of iron(II) complexes [Fe-II(HLn-Pr)(3)]Cl center dot Y (HLn-Pr=2-methylimidazol-4-yl-methylideneamino-n-propyl; Y = AsF6, BF4) and their spin states

    Takeshi Fujinami, Koshiro Nishi, Naohide Matsumoto, Seiichiro Iijima, Malcolm A. Halcrow, Yukinari Sunatsuki, Masaaki Kojima

    DALTON TRANSACTIONS   40 ( 45 )   12301 - 12309   2011

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    DOI: 10.1039/c1dt11063b

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  • A single tripodal ligand stabilizing three different oxidation states (II, III, and IV) of manganese

    Yukinari Sunatsuki, Yukana Kishima, Tamami Kobayashi, Tomoka Yamaguchi, Takayoshi Suzuki, Masaaki Kojima, J. Krzystek, Markku R. Sundberg

    CHEMICAL COMMUNICATIONS   47 ( 32 )   9149 - 9151   2011

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    DOI: 10.1039/c1cc12418h

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  • Face-Sharing Heterotrinuclear M-II-Ln(III)-M-II (M = Mn, Fe, Co, Zn; Ln = La, Gd, Tb, Dy) Complexes: Synthesis, Structures, and Magnetic Properties

    Tomoka Yamaguchi, Jean-Pierre Costes, Yukana Kishima, Masaaki Kojima, Yukinari Sunatsuki, Nicolas Brefuel, Jean-Pierre Tuchagues, Laure Vendier, Wolfgang Wernsdorfer

    INORGANIC CHEMISTRY   49 ( 20 )   9125 - 9135   2010.10

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    DOI: 10.1021/ic100460w

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  • Structures and spin states of mono- and dinuclear iron(II) complexes of imidazole-4-carbaldehyde azine and its derivatives

    Yukinari Sunatsuki, Ryohei Kawamoto, Kunihiro Fujita, Hisashi Maruyama, Takayoshi Suzuki, Hiroyuki Ishida, Masaaki Kojima, Seiichiro Iijima, Naohide Matsumoto

    COORDINATION CHEMISTRY REVIEWS   254 ( 15-16 )   1871 - 1881   2010.8

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  • One-Dimensional Spin-Crossover Iron(II) Complexes Bridged by Intermolecular Imidazole-Pyridine NH center dot center dot center dot N Hydrogen Bonds, [Fe(HLMe)(3)]X-2 (HLMe = (2-Methylimidazol-4-yl-methylideneamino-2-ethylpyridine; X = PF6, ClO4, BF4)

    Koshiro Nishi, Shinobu Arata, Naohide Matsumoto, Seiichiro Iijima, Yukinari Sunatsuki, Hiroyuki Ishida, Masaaki Kojima

    INORGANIC CHEMISTRY   49 ( 4 )   1517 - 1523   2010.2

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    DOI: 10.1021/ic9017344

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  • Homochiral column structure of rac- and Lambda-[M-III(tn)(3)]P3O9 (M = Co, Cr; tn=1,3-diaminopropane; P3O9 = cyclotriphosphate(3-)) produced by multiple hydrogen bonds

    Yukinari Sunatsuki, Sho Miyahara, Takayoshi Suzuki, Masaaki Kojima, Toshio Nakashima, Naohide Matsumoto, Frode Galsbol

    NEW JOURNAL OF CHEMISTRY   34 ( 12 )   2777 - 2784   2010

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    DOI: 10.1039/c0nj00270d

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  • Mononuclear Bis(tridentate)-Type and Dinuclear Triple Helicate Iron(II) Complexes Containing 2-Ethyl-5-methylimidazole-4-carbaldehyde Azine

    Yukinari Sunatsuki, Hisashi Maruyama, Kunihiro Fujita, Takayoshi Suzuki, Masaaki Kojima, Naohide Matsumoto

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   82 ( 12 )   1497 - 1505   2009.12

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    DOI: 10.1246/bcsj.82.1497

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  • Structures and Spin States of Bis(tridentate)-Type Mononuclear and Triple Helicate Dinuclear lron(II) Complexes of Imidazole-4-carbaldehyde azine

    Yukinari Sunatsuki, Ryohei Kawamoto, Kunihiro Fujita, Hisashi Maruyama, Takayoshi Suzuki, Hiroyuki Ishida, Masaaki Kojima, Seiichiro Iijima, Naohide Matsumoto

    INORGANIC CHEMISTRY   48 ( 18 )   8784 - 8795   2009.9

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    DOI: 10.1021/ic900977m

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  • Synthesis and characterization of 8-quinolinolato vanadium(IV) complexes

    Kentaro Takano, Yukinari Sunatsuki, Masaaki Kojima, Isamu Kinoshita, Takashi Shibahara

    INORGANICA CHIMICA ACTA   362 ( 9 )   3201 - 3207   2009.7

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    DOI: 10.1016/j.ica.2009.02.025

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  • Synthesis, structures, and magnetic properties of face-sharing heterodinuclear Ni(II)-Ln(III) (Ln = Eu, Gd, Tb, Dy) complexes

    Tomoka Yamaguchi, Yukinari Sunatsuki, Hiroyuki Ishida, Masaaki Kojima, Haruo Akashi, Nazzareno Re, Naohide Matsumoto, Andrzej Pochaba, Jerzy Mrozinski

    INORGANIC CHEMISTRY   47 ( 13 )   5736 - 5745   2008.7

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    DOI: 10.1021/ic8000575

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  • Mono- and trinuclear Cu-II complexes with tripodal ligands

    Yukinari Sunatsuki, Tamami Kobayashi, Kenji Harada, Tomoka Yamaguchi, Matsuo Nonoyama, Masaaki Kojima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   81 ( 6 )   716 - 725   2008.6

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    DOI: 10.1246/bcsj.81.716

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  • Synthesis, structures, and magnetic properties of doubly face-sharing heterotrinuclear Ni-II-Ln(III)-Ni-II (Ln = Eu, Gd, Tb, and Dy) complexes

    Tomoka Yamaguchi, Yukinari Sunatsuki, Hiroyuki Ishida, Masaaki Kojima, Haruo Akashi, Nazzareno Re, Naohide Matsmuoto, Andrzej Pochaba, Jerzy Mrozinski

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   81 ( 5 )   598 - 605   2008.5

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    DOI: 10.1246/bcsj.81.598

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  • Mononuclear nickel(II) and zinc(II) complexes with deprotonated forms of the tripodal hexadentate ligand 1,3-bis(2-hydroxybenzylidene)-2-(2-hydroxybenzylideneaminomethyl)-2-methylpropane-1,3-diamine

    Tomoka Yamaguchi, Yukinari Sunatsuki, Hiroyuki Ishida

    ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY   64   M156 - M160   2008.4

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    DOI: 10.1107/S0108270108004289

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  • Cobalt(III) complexes of a tripodal ligand containing three imidazole groups: Properties and structures of racemic and optically active species

    Hirofumi Nakamura, Megumi Fujii, Yukinari Sunatsuki, Masaaki Kojima, Naohide Matsumoto

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 8 )   1258 - 1267   2008.3

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    DOI: 10.1002/ejic.200700950

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  • Spin states of mono- and dinuclear iron(II) complexes with bis(imidazolylimine) ligands

    Kunihiro Fujita, Ryohei Kawamoto, Ryohei Tsubouchi, Yukinari Sunatsuki, Masaaki Kojima, Seiichiro Iijima, Naohide Matsumoto

    CHEMISTRY LETTERS   36 ( 10 )   1284 - 1285   2007.10

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    DOI: 10.1246/cl.2007.1284

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  • Chiral recognition and conglomerate crystallization induced by self-organization of cobalt(III) complexes of a tripodal ligand containing three imidazole groups

    Hirofumi Nakamura, Yukinari Sunatsuki, Masaaki Kojima, Naohide Matsumoto

    INORGANIC CHEMISTRY   46 ( 20 )   8170 - 8181   2007.10

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    DOI: 10.1021/ic070286+

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  • Synthesis and structures of vanadium-cerium trinuclear complexes with Schiff-base ligands

    Masanobu Tsuchimoto, Toshio Ishii, Takane Imaoka, Kimihisa Yamamoto, Naoki Yoshioka, Yukinari Sunatsuki

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   79 ( 9 )   1393 - 1397   2006.9

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    DOI: 10.1246/bcsj.79.1393

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  • A ruthenium(II) complex with a tripodal ligand containing three imidazole groups

    Tomoka Yamaguchi, Kazutoshi Harada, Yukinari Sunatsuki, Masaaki Kojima, Kiyohiko Nakajima, Naohide Matsumoto

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 16 )   3236 - 3243   2006.8

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    DOI: 10.1002/ejic.200600111

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  • Potential and pH Dependencies of Adsorbed Species of 2-, 4-Pyridinethiol and 2-Pyrimidinethiol on Au(111) Electrode

    Isao Taniguchi, Soichiro Yoshimoto, Yukinari Sunatsuki, Katsuhiko Nlshiyama

    Electrochemistry   67 ( 12 )   1197 - 1199   1999

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    DOI: 10.5796/electrochemistry.67.1197

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  • Synthesis, structure, and properties of di-mu-phenoxo-bridged dinuclear (CuNiII)-Ni-II and (CuCoII)-Co-II complexes and cyclic di-mu-phenoxo-mu-amido-bridged tetranuclear (Cu2Zn2II)-Zn-II and Cu-4(II) complexes derived from the 1,2-bis(2-oxidobenzamidato)benzenecuprate(II) dianionic ligand-complex Reviewed

    Y Sunatsuki, T Matsuo, M Nakamura, F Kai, N Matsumoto, JP Tuchagues

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   71 ( 11 )   2611 - 2619   1998.11

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  • Synthesis, magnetic properties, and incomplete double-cubane structure of Manganese(III)-metal(II) complexes [Mn(MeOH)L(OH)M(bpy)](2) (M = Zn, Cu, Ni, and Mn; H4L = 1,2-bis(2-hydroxybenzamido)benzene; bpy = 2,2 '-bipyridine) Reviewed

    Y Sunatsuki, H Shimada, T Matsuo, M Nakamura, F Kai, N Matsumoto, N Re

    INORGANIC CHEMISTRY   37 ( 21 )   5566 - 5574   1998.10

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  • Multi-dimensional structures constructed by the electrostatic interaction of potassium salts of cobalt(III) and manganese(III) complexes with 1,2-bis(2-hydroxybenzamido)benzene Reviewed

    Y Sunatsuki, M Mimura, H Shimada, F Kai, N Matsumoto

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   71 ( 1 )   167 - 173   1998.1

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  • Synthesis, crystal structures and electrochemical properties of Cu-II and Ni-II complexes with hexadentate ligands containing thioether-amidopyridyl donor set Reviewed

    Y Sunatsuki, T Matsumoto, Y Fukushima, M Mimura, M Hirohata, N Matsumoto, F Kai

    POLYHEDRON   17 ( 11-12 )   1943 - 1952   1998

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  • Dinaionic ligand complexes, K-2[CuLn] and K-2[NiLn] (n=1,2; H4L1=1,2-bis(2-hydroxybenzamido)ethane, H4L2=1,2-bis(2-hydroxybenzamido)benzene), and their dinuclear Cu(II)-Cu(II) and Ni(II)-Cu(II) complexes Reviewed

    Y Sunatsuki, M Nakamura, N Matsumoto, F Kai

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   70 ( 8 )   1851 - 1858   1997.8

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  • Crystal structure and electrochemical properties of Cu-II complexes with 1,2-bis(2-hydroxybenzamido)benzene Reviewed

    Y Sunatsuki, R Hirata, Y Motoda, M Nakamura, N Matsumoto, F Kai

    POLYHEDRON   16 ( 23 )   4105 - 4111   1997

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  • Steric-Hindrance Effect of a Substituent in the Self-Assembly Process of Copper(II) Complexes with Quadridentate Schiff-Base Ligands Involving a 2-Substituted-Imidazole Moiety Reviewed

    Naohide Matsumoto, Masaaki Mimura, Yukinari Sunatsuki, Shingo Eguchi, Yukiko Mizuguchi, Hitoshi Miyasaka, Toshio Nakashima

    Bull. Chem. Soc. Jpn.   70 ( 10 )   2461 - 2472   1997

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    Four copper(II) complexes with unsymmetrical quadridentate ligands involving an imidazole moiety, [CuHLn]ClO4 (14; n = 1—4), have been prepared and characterized, where HL1 = N-salicylidene-N′-(2-methylimidazol-4-ylmethylidene)-1,3-propanediamine, HL2 = N-salicylidene-N′-(2-phenylimidazol-4-ylmethylidene)-1,3-propanediamine, HL3 = N-acetylacetonylidene-N′-(2-methylimidazol-4-ylmethylidene)ethylenediamine, HL4 = N-acetylacetonylidene-N′-(2-phenylimidazol-4-ylmethylidene)ethylenediamine, respectively. The corresponding deprotonated complexes 1′—4′ were obtained when 14 were treated under an alkaline condition. Deprotonation of the imidazole moiety of the copper(II) complex motivates a self-assembly process which is formed by an axial coordination of the imidazolate nitrogen atom of a molecular unit to the copper(II) ion of another unit. 1′—3′ assumes a self-assembled imidazolate-bridged infinite-chain structure {Cu(II)–Im}n in the solid state, while the polymeric species dissociates to monomeric species in the solution state. 4′ consists of a discrete deprotonated monomeric species, even in the solid state. The physical measurements, including reflectance and absorption spectra, cryomagnetic measurements, and single-crystal X-ray analyses, revealed that the self-assembly behavior for the series of copper(II) complexes depends both on the steric effect of the substituent of 2-substituted-4-formylimidazole moiety and the ligand field strength of the equatorial quadridentate ligand.

    DOI: 10.1246/bcsj.70.2461

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Books

  • 錯体化合物事典

    錯体化学会( Role: Contributor ,  2記事(2ページ相当))

    朝倉書店  2019.9  ( ISBN:9784254141054

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    Total pages:54, 944p   Language:Japanese

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MISC

  • Crystal Structures and Various Properties of Novel Metal Complexes with Tripodal Ligands

    SUNATSUKI Yukinari, KOJIMA Masaaki, MATSUMOTO Naohide

    X-RAYS   53 ( 3 )   186 - 192   2011

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    Language:Japanese   Publisher:The Crystallographic Society of Japan  

    Metal complexes with tripodal hexadentate ligands containing three bidentate arms have a pair of optical isomers, that is Δ form and Λ form. We have prepared the metal complexes with two types of tripodal ligands. The complexes are not only mononuclear ones but also multinuclear and self-assembled supramolecular ones. Here, we describe the structures and properties with the emphasis on chirality-related features of them.

    DOI: 10.5940/jcrsj.53.186

    CiNii Article

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00372815769?from=CiNii

  • Spin Crossover in a Suprsmolecular FeII-FeIII System

    Hiromi Ohta, Yukinari Sunatsuki, Yuichi Ikuta, Naohide Matsumoto, Seiichiro Iijima, Haruo Akashi, Takashi Kambe, Masaaki Kojima

    Material Science   21   191 - 199   2003

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  • Spin crossover in a supramolecular Fe-II-Fe-III system

    H Ohta, Y Sunatsuki, Y Ikuta, N Matsumoto, S Iijima, H Akashi, T Kambe, M Kojima

    MATERIALS SCIENCE-POLAND   21 ( 2 )   191 - 198   2003

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  • スピンクロスオーバー現象による記録素子と表示素子

    砂月幸成, 松本尚英

    化学   56 ( 11 )   64 - 65   2001

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Presentations

  • キラルな単分⼦磁⽯の創成を⽬指した三脚型 Schiff 塩基配位⼦を含む CoII-TbIII-CoII 三核錯体の結晶化挙動の制御

    富田 大智, 高原 一真, 坂田 大夢, 砂月 幸成, 鈴木 孝義

    錯体化学会第 74 回討論会  2024.9.20 

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    Event date: 2024.9.18 - 2024.9.20

    Language:Japanese   Presentation type:Poster presentation  

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  • Spin-crossover Iron Complexes with Imidazole-Imine Ligands Invited

    Yukinari Sunatsuki, Takayoshi Suzuki, Masaaki Kojima, Naohide Matsumoto

    Post PDSTM 1st International Conference on Spin Transition  2023.12.2 

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    Event date: 2023.12.2 - 2023.12.5

    Language:English   Presentation type:Oral presentation (invited, special)  

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  • 8-(ジフェニルホスフィノ)キノリンを含むレニウム(I)錯体の合成と性質

    川瀧 明日香, 波岡 純史, 砂月 幸成, 鈴木 孝義

    錯体化学会第 73 回討論会  2023.9.22 

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    Event date: 2023.9.21 - 2023.9.23

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  • Possibility of Absolute Spontaneous Resolution for Chiral ZnII-LnIII-ZnII Heterotrinuclear Complexes bearing Tripodal Nonadentate Ligands

    Kazuma TAKAHARA, Yuki HORINO, Koki WADA, Hiromu SAKATA, Yukinari, SUNATSUKI, Masaaki KOJIMA, Takayoshi SUZUKI

    2023.9.22 

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    Event date: 2023.9.21 - 2023.9.23

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  • 三脚状配位子を含む三核Zn-Tb-Zn錯体の結晶化に類似Ni- Tb-Ni錯体の添加が及ぼす効果

    坂田 大夢, 高原 一真, 砂月 幸成, 鈴木 孝義

    錯体化学会第 73 回討論会  2023.9.22 

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    Event date: 2023.9.21 - 2023.9.23

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  • クロモニルヒドラゾンを含むPdIIおよびNiII錯体におけるメタノールの付加反応と酸塩基応答性

    今井 弥江, 亀井 朝日, 砂月 幸成, 鈴木 孝義

    錯体化学会第 73 回討論会  2023.9.21 

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    Event date: 2023.9.21 - 2023.9.23

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  • キサンテン架橋による二核及び四核錯体の中心金属間距離の制御

    濵口 諒一, 小川 理渚, 山崎 祐太, 砂月 幸成, 鈴木 孝義, 廣津 昌和

    錯体化学会第 73 回討論会  2023.9.21 

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    Event date: 2023.9.21 - 2023.9.23

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  • イミダゾール基を含む四脚型Schiff塩基を配位子とするコバルト錯体の合成と構造解析

    池浦 更紗, 田澤 俊志, 砂月 幸成, 鈴木 孝義

    錯体化学会第 73 回討論会  2023.9.21 

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    Event date: 2023.9.21 - 2023.9.23

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  • シクロヘキサン環を骨格構造とする三脚型 Schiff 塩基配位子を用いた 3d 金属錯体の合成および構造と性質

    大川 真輝, 砂月 幸成, 鈴木 孝義

    錯体化学会第 73 回討論会  2023.9.21 

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    Event date: 2023.9.21 - 2023.9.23

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  • Unsymmetric Multidentate Azine-Based Ligands Coordinated to series of First Transition Metal(II) Ions

    K. M. Hayibor, Y. Sunatsuki, T. Suzuki

    2022.9.27 

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    Event date: 2022.9.26 - 2022.9.28

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  • 三脚状多座配位子を含む異種金属三核錯体Ni-Tb-Niの結晶化挙動と結晶構造

    坂田大夢, 高原一真, 砂月幸成, 鈴木孝義

    錯体化学会第72回討論会  2022.9.27 

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    Event date: 2022.9.26 - 2022.9.28

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  • イミダゾール基を含む四脚型Schiff塩基を配位子とするNiII及びCuII錯体の合成と構造解析

    池浦更紗, 田澤俊志, 砂月幸成, 鈴木孝義

    錯体化学会第72回討論会  2022.9.26 

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    Event date: 2022.9.26 - 2022.9.28

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  • クロモニルヒドラゾンを含むPdII錯体におけるメタノールの付加反応

    今井弥江, 亀井朝日, 砂月幸成, 鈴木孝義

    錯体化学会第72回討論会  2022.9.26 

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    Event date: 2022.9.26 - 2022.9.28

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  • ヒドラゾン化合物を配位子とする希土類金属錯体の定量的な合成の検討および酸または塩基による可逆的な溶液色変化の調査

    笹倉悠希, 高原一真, 亀井朝日, 砂月幸成, 鈴木孝義

    錯体化学会第72回討論会  2022.9.26 

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    Event date: 2022.9.26 - 2022.9.28

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  • Syntheses, crystal structures, and magnetic properties of polynuclear iron(II) complexes with (imidazole–imine)-type bis(bidentate) ligands

    T. Tanaka, Y. Sunatsuki, T. Suzuki

    44th International Conference on Coordination Chemistry, Rimini, Italy  2022.9.1 

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    Event date: 2022.8.28 - 2022.9.2

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  • Possibility of absolute spontaneous resolution of transition metal(II) and lanthanoid(III) heterotrinuclear complexes with achiral tripodal nonadentate ligands

    K. Takahara, Y. Horino, K. Wada, H. Sakata, H. Isobe, Y. Sunatsuki, T. Suzuki

    44th International Conference on Coordination Chemistry, Rimini, Italy  2022.8.30 

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    Event date: 2022.8.28 - 2022.9.2

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  • Molecular structures and oxidation reactions of rhodium(I) complexes containing 2-(methyl- or phenyl)-8-(diphenylphosphino)quinoline

    T. Suzuki, E. Arimoto, M. Mori, G. Nakamura, Y. Sunatsuki

    44th International Conference on Coordination Chemistry, Rimini, Italy,  2022.8.28 

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    Event date: 2022.8.28 - 2022.9.2

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  • Synthesis and Characterization of Nickel(II) Complex with an Unsymmetric Azine Ligand

    K. M. Hayibor, Y. Sunatsuki, T. Suzuki

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    Event date: 2022.3.23 - 2022.3.26

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  • トリス(イミダゾール-イミン)型単核鉄(II)錯体が示すスピンクロスオーバー挙動のスキャン速度依存性

    武谷直人, 鈴木孝義, 砂月幸成

    日本化学会第101春季年会 

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    Event date: 2022.3.19 - 2022.3.22

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  • アミド-イミン型多座配位子を用いた二核および四核マンガン(III)錯体の合成と性質

    山本健太, 小川理渚, 砂月幸成, 鈴木孝義

    日本化学会第101春季年会 

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    Event date: 2022.3.19 - 2022.3.22

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  • 8-(ジフェニルホスフィノ)キノリン誘導体を配位子とするコバルト錯体の合成と性質

    波岡純史, 有元絵理佳, 砂月幸成, 鈴木孝義

    日本化学会第101春季年会 

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    Event date: 2022.3.19 - 2022.3.22

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  • Iron(II) complexes having dinuclear mesocate, tetranuclear tetrahedron, and octanuclear bicapped trigonal prism structures with (imidazole–imine)-type bis(bidentate) ligands: their structures and spin-crossover behavior International conference

    Tubasa Tanaka, Yukinari Sunatsuki, Takayoshi Suzuki

    Pacifichem 2021  2021.12.17  Pacific Basin Chemical Societies

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    Event date: 2021.12.16 - 2021.12.21

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Virtual   Country:United States  

    Other Link: https://pacifichem.org/

  • Iron(II) complexes having dinuclear mesocate, tetranuclear tetrahedron, and octanuclear bicapped trigonal prism structures with (imidazole–imine)-type bis(bidentate) ligands: their structures and spin-crossover behavior

    Tubasa Tanaka, Yukinari Sunatsuki, Takayoshi Suzuki

    The International Chemical Congress of Pacific Basin Societies 2021  2021.12.17 

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    Event date: 2021.12.16 - 2021.12.21

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  • Absolute spontaneous resolution of MII-LnIII-MII type trinuclear complexes bearing achiral tripodal Schiff base Ligands

    K. Takahara, Y. Horino, Y. Sunatsuki, T. Suzuki

    The International Chemical Congress of Pacific Basin Societies 2021 

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    Event date: 2021.12.16 - 2021.12.21

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  • A series of cobalt(II/III) complexes bearing multidentate hydrazonato ligands with pyridyl and imidazolyl donor groups: synthesis, crystal structures and properties

    D. K, B. Acheampong, T. Suzuki, Y. Sunatsuki

    The International Chemical Congress of Pacific Basin Societies 2021 

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    Event date: 2021.12.16 - 2021.12.21

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  • Possibility of total or absolute spontaneous resolution for coordination compounds with a tripodal multidentate ligand

    T. Suzuki, M. Matsushima, K. Wada, Y. Horino, K. Takahara, Y. Sunatsuki, M. Kojima

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    Event date: 2021.12.16 - 2021.12.21

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  • Synthesis and Characterization of Nickel(II) Complex with an Unsymmetric Azine Ligand

    K. M. Hayibor, Takayoshi Suzuki, Y. Sunatsuki

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    Event date: 2021.9.16 - 2021.9.19

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  • アミド-イミン型多座配位子を有するマンガン(III)多核錯体の合成

    山本健太, 小川理渚, 砂月幸成, 鈴木孝義

    2020年 日本化学会中国四国支部大会 

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    Event date: 2020.11.28 - 2020.11.29

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  • MII-LnIII-MII三核錯体の絶対自然分晶におけるLnIIIイオンの効果と種結晶によるキラル制御

    高原一真, 堀野優城, 砂月幸成, 鈴木孝義

    2020年 日本化学会中国四国支部大会 

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    Event date: 2020.11.28 - 2020.11.29

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  • トリス(イミダゾール-イミン)型単核鉄(II)錯体のスキャン速度に依存したスピンクロスオーバー挙動の調査

    武谷直人, 鈴木孝義, 砂月幸成

    2020年 日本化学会中国四国支部大会 

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    Event date: 2020.11.28 - 2020.11.29

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  • クロモニル基を有するピコリノイルヒドラゾン誘導体を含むLnIII錯体の酸・塩基および熱応答型発光特性

    亀井朝日, 砂月幸成, 稲毛正彦, 鈴木孝義

    錯体化学会第70回討論会 

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    Event date: 2020.9.28 - 2020.9.30

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  • Absolute Spontaneous Resolution of MII-LnIII-MII Type Trinuclear Complexes from Achiral Tripodal Schiff Base Ligand

    K. Takahara, Y. Horino, Y. Sunatsuki, T. Suzuki

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    Event date: 2020.3.21 - 2020.3.24

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  • Mononuclear Cobalt(II or III) Hydrazonate Complexes: Synthesis, Characterization, Spectroscopic, Electrochemical and Magnetic Properties

    D. K.B. Acheampong, T. Suzuki, Y. Sunatsuki

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    Event date: 2020.3.21 - 2020.3.24

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  • クロモニル基を有するヒドラゾン誘導体を用いた EuIII錯体の合成とその発光特性

    亀井朝日, 砂月幸成, 稲毛正彦, 鈴木孝義

    日本化学会第100春季年会 

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    Event date: 2020.3.21 - 2020.3.24

    Language:Japanese  

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  • MII-LnIII-MII型三核錯体における完全自然分晶の発現条件の検討

    高原一真, 堀野優城, 砂月幸成, 鈴木孝義

    2019年 日本化学会中国四国支部大会 

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    Event date: 2019.11.16 - 2019.11.17

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  • Mononuclear and Dinuclear Transition-Metal Complexes Containing Hydrazonates: Synthesis, Structures, and Spectroscopic and Electrochemical Properties

    D. Acheampong, K. Kirihara, T. Suzuki, Y. Sunatsuki

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    Event date: 2019.11.16 - 2019.11.17

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  • クロモニル基を有するヒドラゾン誘導体を含む発光性EuIII錯体の合成とPdII, PtII錯体の合成

    亀井朝日, 砂月幸成, 稲毛正彦, 鈴木孝義

    2019年 日本化学会中国四国支部大会 

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    Event date: 2019.11.16 - 2019.11.17

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  • MII-LnIII-MII型三核錯体の結晶化挙動に影響する種々の結晶化条件の検証

    高原一真, 堀野優城, 砂月幸成, 鈴木孝義

    錯体化学会第69回討論会 

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    Event date: 2019.9.21 - 2019.9.23

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  • クロモニル基を有するヒドラゾン誘導体を含む遷移金属およびランタノイド錯体の合成と発光特性の検討

    亀井朝日, 砂月幸成, 稲毛正彦, 鈴木孝義

    錯体化学会第69回討論会 

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    Event date: 2019.9.21 - 2019.9.23

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  • Synthesis and Characterization of Mononuclear Cobalt(III) and Iron(III) Complexes Containing Tridentate Hydrazonato Ligands

    D. K. B. Acheampong, K. Kirihara, T. Suzuki, Y. Sunatsuki

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    Event date: 2019.9.21 - 2019.9.23

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  • Slow Mangetic Relaxation in Tetracoordinated Cobalt(II) Complexes with One-Dimensional Hydrogen-Bonded Networks

    R. Mitsuhashi, H. Hosoya, T. Suzuki, Y. Sunatsuki, H. Sakiyama, M. Mikuriya

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    Event date: 2019.9.21 - 2019.9.23

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  • イミダゾール基を含むビス二座シッフ塩基配位子を用いた多核鉄(II)錯体の構造と性質

    田中翼, 砂月幸成, 鈴木孝義

    錯体化学会第69回討論会 

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    Event date: 2019.9.21 - 2019.9.23

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  • Structural characterization and racemization of transition-metal complexes bearing a Schiff base ligand derived from L-histidine methyl ester

    R. Ogawa, T. Suzuki, Y. Sunatsuki

    43rd International Conference on Coordination Chemistry  2018 

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    Event date: 2018.7.30 - 2018.8.4

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  • Hydrogen bonding assembling structures and spin-crossover behavior of polymorphs of iron(II) complexes with imidazole containing bidentate Schiff base ligands

    Y. Sunatsuki, T. Suzuki, N. Matsumoto

    43rd International Conference on Coordination Chemistry 

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    Event date: 2018.7.30 - 2018.8.4

    Language:English   Presentation type:Oral presentation (general)  

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  • Structures and properties of group 10 metal complexes bearing 2-methyl- or 2-phenyl-8-diphenylphoshinoquinoline

    M. Mori, K. Ariyoshi, Y. Sunatsuki, T. Suzuki

    43rd International Conference on Coordination Chemistry 

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    Event date: 2018.7.30 - 2018.8.4

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  • Hydrogen-bonding Supramolecular Assembly of S6-Symmetric Cobalt(II) Complex with Tris-bidentate Metalloligand

    R. Mitsuhashi, K. Pedersen, T. Ueda, T. Suzuki, J. Bendix, M. Mikuriya

    43rd International Conference on Coordination Chemistry 

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    Event date: 2018.7.30 - 2018.8.4

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  • Molecular Structures of two Polymorphs of an Iron(II) Complex with an Imidazole Containing Bidentate Schiff Base Ligand and Their Scan Rate Dependent Spin-Crossover Behavior

    XXth International Winter School on Coordination Chemistry  2016 

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  • Oxidation Reactions and Magnetic Properties of Co(II) Complexes with Strand-Type Hexadentate Ligands Having Thioether-Amidato-Pyridyl Donor Set

    The 23rd International SPACC Symposium  2016 

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  • Structures and Properties of Transition Metal Complexes with Schiff-base Ligands Derived from L-Hystidine or L-Hystidine Methyl Ester

    錯体化学会 第66回討論会  2016 

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  • 水素結合ドナーとアクセプターを有する非対称二座配位子を用いた四配位コバルト(II)錯体の合成と性質

    錯体化学会 第66回討論会  2016 

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  • イミダゾール基を含むビス(二座配位)型シッフ塩基を用いた二核鉄(II)錯体の合成と性質

    錯体化学会 第66回討論会  2016 

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  • カルシウムイオンと有機アニオンを用いたロジウム(III)ーチミナト(2ー)環状四殻ユニットの連結

    錯体化学会 第66回討論会  2016 

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  • 三座シッフ塩基配位子を含む Zn-Tb-Zn 型三核錯体の完全自然分晶の検証

    錯体化学会 第66回討論会  2016 

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  • Synthesis and Properties of Nickel, Palladium and Platinum Complexes Containing Substituted 8-(Diphenylphosphino)quinolines

    錯体化学会 第66回討論会  2016 

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  • Synthesis, structures, magnetic properties and oxidation reactions of Co(II) complexes with strand-type hexadentate ligands having thioether-amidato-pyridyl donor set

    42nd International Conference on Coordination Chemistry  2016 

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  • リチウムまたはカルシウムイオンが結合した不完全キュバン型マンガンクラスターの構築

    日本化学会第96春季年会  2016 

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  • Scan Rate Dependent Spin-Crossover and Porymorphs of Iron(II) Complex with an Imidazole Containing Bidentate Schiff Base Ligand

    The 15th International Conference on Molecul-Based Magnets  2016 

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  • Scan rate dependent spin-crossover behavior of two polymorphs of an iron(II) complex with an imidazole containing bidentate Schiff base ligand

    Cooperative Symposium among Universities of Toulouse, Copenhagen, and Okayama  2016 

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  • Synthesis, crystal structure and magnetic properties of the face-shared triply bridged linear trinuclear complexes

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Multinuclear iron(II) complexes bridged by tetradentate bis(Schiff base)-type ligands

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Magnetic behaviors and oxidation reactions of cobalt(II) complexes with strand-type hexadentate ligands containing thioether and amidate donor groups

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Synthesis, structures, and properties of mono-, di-, and tetranuclear manganese complexes with unsymmetrical tridentate ligands derived from N-(aminoalkyl)salicylamide

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Palladium(II) mononuclear and palladium(II)/ruthenium(II) heterodinuclear complexes bearing a quinoline-2-carbaldehyde (pyridine-2-carbonyl)hydrazone

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Synthesis and structures of platinum(II) complexes containing 8-(dimethyl or diphenylphosphino)quinoline

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • 8位にホスフィノ基を有するキノリン誘導体を含む新規パラジウム(II)、白金(II)錯体の合成と性質

    2015年日本化学会中国四国支部大会  2015 

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  • イミダゾール基を含むbis-bidentate型シッフ塩基配位子を用いた多核鉄(II)錯体の合成と性質

    2015年日本化学会中国四国支部大会  2015 

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  • 2-キノリル置換基を含むピリジル-2-カルボニルヒドラゾンを用いたパラジウム(II)/ルテニウム(II)錯体の合成と性質

    2015年日本化学会中国四国支部大会  2015 

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  • チオエーテルとアミダトおよびピリジル供与基を含む直鎖型六座配位子を用いたコバルト(II)錯体のスピンクロスオーバーと酸化反応

    2015年日本化学会中国四国支部大会  2015 

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  • 三脚状三座ホスフィン配位子を含むヒドリド架橋二核ロジウム(III)錯体のクロモトロピズム

    2015年日本化学会中国四国支部大会  2015 

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  • L-ヒスチジンメチルエステルから誘導したシッフ塩基を含む遷移金属錯体の構造と酸化還元挙動

    2015年日本化学会中国四国支部大会  2015 

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  • 8位にホスフィノ基を有するキノリン誘導体を含む新規白金錯体の合成と性質

    第65回錯体化学討論会  2015 

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  • Chromotropism of hydrido-bridged dinuclear rhodium(III) complexes containing a tripodal tridentate phosphine ligands

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • Thyminate(2–)-bridged cyclic tetranuclear rhodium(III) complexes formed by a template of a sodium, calcium or lanthanoid ion

    The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem 2015)  2015 

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  • カルシウムイオンをテンプレートとしたチミナト(2‒)架橋ロジウム(Ⅲ)環状四核錯体の構造

    2015年日本化学会中国四国支部大会  2015 

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  • L-ヒスチジンから誘導したシッフ塩基を含む遷移金属錯体の合成と性質

    第65回錯体化学討論会  2015 

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  • Spontaneous Resolution of Transition-Metal Complexes Containing a Tripodal Hexadentate Schiff-Base Ligand Derived from 1,1,1-Tris(2-aminomethyl)ethane and 4-Formylimidazole

    第65回錯体化学討論会  2015 

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  • 1H-イミダゾール-4-カルバルデヒド-2-ピリジルヒドラゾン誘導体を含むルテニウム(II)錯体の合成と構造および性質

    日本化学会第95春季年会  2015 

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  • L-ヒスチジンから誘導したシッフ塩基を含む金属錯体の合成と性質

    日本化学会第95春季年会  2015 

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  • チオエーテルおよびアミダト供与基を含む直鎖状六座配位子を用いたコバルト(II/III) 錯体の磁気的性質と酸化反応

    日本化学会第95春季年会  2015 

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  • イミダゾール基を含むbis-bidentate型シッフ塩基を用いた多核鉄(II)錯体の合成

    第65回錯体化学討論会  2015 

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  • ヒドラゾン骨格を有する非対称三座配位子を用いたルテニウム(II)錯体の合成と性質

    第65回錯体化学討論会  2015 

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  • チオエーテルとアミダトおよびピリジル供与基を含む直鎖状六座配位子を用いたコバルト(II/III) 錯体の合成と性質

    第65回錯体化学討論会  2015 

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  • 三脚状三座ホスフィン配位子を含むヒドリド架橋二核ロジウム(III)錯体の光応答性

    第65回錯体化学討論会  2015 

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  • Chromotropism of Hydrido-Bridged Dinuclear Rhodium(III) Complexes Containing Tridentate Phosphine Ligands

    XIXth International Winter School on Coordination Chemistry  2014 

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  • Ssynthesis, Structures, and Properties of Manganese Complexes with Unsymmetriical Tridentate Ligands Derived from N-(Aminoalkyl)salcylamide

    XIXth International Winter School on Coordination Chemistry  2014 

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  • Iron Complexes with an Imidazol Containing Bis-bidentate Type Ligand

    XIXth International Winter School on Coordination Chemistry  2014 

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  • Chiral Incomplere-cubane Type Manganese(III) Clusters Containing A Bridging Methoxido or Hydroxido Ligand

    2014 International Conference on Artificial Photosynthesis  2014 

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  • L-ヒスチジンとサリチルアルデヒドから誘導したシッフ塩基を含む金属錯体の合成と性質

    2014年日本化学会中国四国支部大会  2014 

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  • チミナト(2–)を架橋配位子に用いたロジウム(III)環状四核錯体の構造と性質

    2014年日本化学会中国四国支部大会  2014 

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  • 1,1,1-トリスアミノメチルエタンから誘導される三脚型シッフ塩基配位子を用いた異種金属三核錯体の合成と性質

    2014年日本化学会中国四国支部大会  2014 

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  • 三脚型配位子と二座配位子からなる強発光性希土類錯体の合成、構造、磁性

    錯体化学会第64回討論会  2014 

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  • Polymorphism of Spin Crossover Iron(II) Complexes fac-[FeII(HLn-R)3]Cl PF6 (HLn-R = 2-methylimidazol-4-yl-methylideneamino-n-propyl

    錯体化学会第64回討論会  2014 

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  • fac-mer型構造異性をもつ希土類錯体の合成、構造、発光、単イオン磁石挙動

    錯体化学会第64回討論会  2014 

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  • C3対称を持つ単核希土類錯体の合成、構造、発光、単イオン磁石挙動

    錯体化学会第64回討論会  2014 

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  • チオエーテルおよびアミダト供与基を含む直鎖型六座配位子を用いたコバルト(II)錯体のスピンクロスオーバー

    錯体化学会第64回討論会  2014 

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  • クロモトロピズムを示すヒドリド架橋二核ロジウム(III)錯体における共存配位子の効果

    錯体化学会第64回討論会  2014 

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  • 非対称アミン-アミド-フェノール型三座配位子を用いたマンガン錯体の合成と構造

    錯体化学会第64回討論会  2014 

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  • イミダゾール基を含む三脚型シッフ塩基配位子の鉄錯体を構築素子とする異種金属多核錯体の構造と性質

    錯体化学会第64回討論会  2014 

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  • Thyminate(2–)を架橋配位子に用いたCp*Rh環状四核錯体の構造と性質

    錯体化学会第64回討論会  2014 

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  • 三脚型六座配位子を用いた面共有三核錯体の合成と性質

    錯体化学会第64回討論会  2014 

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  • キラルな多座シッフ塩基配位子を用いたMnクラスターの構築

    錯体化学会第64回討論会  2014 

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  • ヒドラゾン骨格を有するRu錯体のプロトン付加解離と酸化還元挙動

    錯体化学会第64回討論会  2014 

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  • Dinucleating Ability and Proton-Coupled Electron Transfer Behavior of Substituted Hydrazone Ruthenium(II) Complexes

    41st International Conference on Coordination Chemistry  2014 

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  • Conversion of the Bridging Mode of Thyminate(2–) in Cyclic Tetranuclear Rhodium(III) Complexes Caused by the Incorporated Cation

    41st International Conference on Coordination Chemistry  2014 

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  • Chiral Incomplere-cubane Type Manganese(III) Clusters Containing A Bridging Methoxido or Hydroxido Ligand

    41st International Conference on Coordination Chemistry  2014 

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  • Attempts in Preparing Transition-Metal Complexes with L-histidine Derivatives toward Manganese Oxido Cluster

    Workshop and knowledge transfer on advanced spectroscopy and theoretical modeling of bioinorganic systems  2014 

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  • Simultaneous Oxidation and Deprotonation of Substituted Hydrazone Ruthenium(II) Complex

    Workshop and knowledge transfer on advanced spectroscopy and theoretical modeling of bioinorganic systems  2014 

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  • Multi-electron Oxidative Dehydrogenation in Ruthenium(III) Complexes

    Workshop and knowledge transfer on advanced spectroscopy and theoretical modeling of bioinorganic systems  2014 

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  • ヒドラゾン化合物を配位子とするRu(II)錯体におけるプロトン解離に伴う酸化挙動

    日本化学会第94春季年会  2014 

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  • チオエーテルおよびアミダト供与基を含む直鎖型六座配位子を用いたコバルト(II/III)錯体の合成と性質

    日本化学会第94春季年会  2014 

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  • 三脚状三座ホスフィン配位子を含むヒドリド架橋二核ロジウム(III)錯体のクロモトロピズム

    日本化学会第94春季年会  2014 

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  • Mn2+イオンで架橋した二重不完全キュバン型構造をもつ(MnIII3)2MnIIクラスターの構築

    日本化学会第94春季年会  2014 

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  • 面共有型架橋構造を有するFeII-MII-FeII型三核錯体の合成と性質

    第63回錯体化学討論会  2013 

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  • Tetradecanuclear Nickel(II) Cage Complex with Imidazole Containing Ligand Having an Encapsulating Ability for Small Molecule

    International Kick-Off Symposium for ISMCBC  2013 

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  • 三脚型Schiff塩基配位子を用いた単核バナジル錯体とその多核化の検討

    2013年日本化学会中国四国支部大会  2013 

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  • ヒドロキシル基またはカルボキシル基を持つ単座ホスフィン配位子を含むコバルト(III)錯体の合成と性質

    2013年日本化学会中国四国支部大会  2013 

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  • Thyminato(1−)-κN1またはadeninato-κN9を配位子とするRh(III)およびIr(III)錯体の合成とその水素結合相互作用

    第63回錯体化学討論会  2013 

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  • Cp*Rh環状四核錯体に取り込まれた陽イオンによるthyminate(2–)の架橋構造変換

    第63回錯体化学討論会  2013 

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  • Four-electron Oxidative Dehydrogenation Induced by Proton-coupled Electron transfer in Ruthenium(III) Complex with 2-(1,4,5,6-Tetrahydropyrimidin-2-yl)phenolate

    第63回錯体化学討論会  2013 

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  • 2-(1,4,5,6-テトラヒドロピリミジル)-2-フェノレート配位子を用いたルテニウム錯体の塩基応答性酸化還元挙動

    日本化学会第93春季年会  2013 

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  • 特異な置換基を有する単座リン供与配位子を含むコバルト(III)錯体の合成と性質

    第63回錯体化学討論会  2013 

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  • 三脚型 Schiff 塩基配位子を用いたバナジル錯体の合成と性質

    第63回錯体化学討論会  2013 

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  • 4−ホルミルイミダゾールから誘導される三脚型六座シッフ塩基配位子を含む単核 錯体の対イオン効果による特異な結晶化挙動

    第63回錯体化学討論会  2013 

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  • (S)-4-アミノ-2-ヒドロキシ酪酸から誘導した Schiff 塩基配位子を用いた三核 Mn クラス ターの構築

    第63回錯体化学討論会  2013 

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  • 2-位を修飾した 8-キノリルホスファンを含む遷移金属錯体の合成と性質

    第63回錯体化学討論会  2013 

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  • ヒドラゾン化合物を架橋配位子に用いた Ruー3d 金属二核錯体の合成と性質

    第63回錯体化学討論会  2013 

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  • Redox Behavior of Ruthenium(II/III) Complex with 2-(1,4,5,6-Tetrahydropyrimidyl)phenolate Ligand

    錯体分子素子研究センター「新規分子磁性化合物の探索」2013年シンポジウム  2013 

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  • Cyclic Tetranuclear Rhodium(III) Complexes Bridged by Thyminate(2–) and Incorporating an Alkali, Alkali Earth or Lanthanide Ion

    錯体分子素子研究センター「新規分子磁性化合物の探索」2013年シンポジウム  2013 

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  • Cobalt(II) Complexes with Unsymmetric Tridentate Hydrazone-Based Ligands

    40th International Conference on Coordination Chemistry  2012 

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  • Tetradecanuclear cage complexes with imidazole containing ligands having an ability to encapsulate small molecules

    XVIIIth International Winter School on Coordination Chemistry  2012 

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  • Tetradecanuclear cubic cage complexes with imidazole containing ligands

    The Third Symposium in Commemoration of International Exchange Agreement between Faculty of Science, University of Copenhagen, Denmark and Graduate School of Natural Science and Technology, Okayama University, Japan  2012 

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  • 炭酸イオン架橋4核ニッケル(II)−ガドリニウム(III)錯体の合成、構造、磁性

    2012年日本化学会西日本大会  2012 

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  • 配位子場強度を調整した平面四座シッフ塩基配位子とイミダゾールからなるFe(III)錯体の集積構造とスピン平衡

    2012年日本化学会西日本大会  2012 

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  • テトラゾラト誘導体を架橋配位子として用いたパラジウム(II)を含む異種金属二核錯体の立体構造制御

    2012年日本化学会西日本大会  2012 

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  • Chiral 14 nuclear Ni(II) cage complex

    錯体分子素子研究センター「新規分子磁性化合物の探索」2012年シンポジウム  2012 

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  • 核酸塩基を配位子とする新規金属錯体の合成とその水素結合相互作用

    第62回錯体化学討論会  2012 

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  • トリス(ヒドロキシメチル)ホスフィンを含むコバルト(III)錯体の合成と性質

    第62回錯体化学討論会  2012 

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  • イミダゾール−4−カルボアルデヒドアジン類を配位子とする単核及び多核錯体の合成と性質

    第62回錯体化学討論会  2012 

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  • Thyminate(2–)を構成ユニットとするCp*Rh(III)四核錯体

    第62回錯体化学討論会  2012 

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  • N,N’−ビス(4−イミダゾリルメチレン)トリアミン型五座配位子を用いたNi(II)錯体の合成と性質

    第62回錯体化学討論会  2012 

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  • テトラゾラト誘導体を架橋配位子として用いたパラジウム(II)を含む異種金属二核錯体の立体構造制御

    第62回錯体化学討論会  2012 

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  • テトラヒドロピリミジル基またはイミダゾリニル基を有するフェノレート配位子を用いたRu(II/III)錯体の酸化還元挙動

    第62回錯体化学討論会  2012 

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  • ヒドラゾン化合物を架橋配位子とした異種二核金属錯体の合成とその電子状態

    第62回錯体化学討論会  2012 

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  • SCOの発現を目指したヒドラゾン部位を含む非対称配位子を用いたコバルト(II)錯体の構築

    第62回錯体化学討論会  2012 

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  • 三脚型シッフ塩基配位子を含むMII−LnIII−MII三核錯体の完全自然分晶

    第62回錯体化学討論会  2012 

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  • Complete Spontaneous Resolution of 3d–4f–3d Type Heterotrinuclear Complexes

    40th International Conference on Coordination Chemistry  2012 

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  • Mononuclear and Dinuclear RhIII and IrIII Complexes Bearing 5-Methyltetrazolate

    40th International Conference on Coordination Chemistry  2012 

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  • Chiral Tetradecanuclear Nickel(II) Cage Complex with Imidazole Containing Ligand

    40th International Conference on Coordination Chemistry  2012 

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  • Preparation, Structures and Properties of Ru(II) Complexes with Hydrazone Ligand

    40th International Conference on Coordination Chemistry  2012 

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  • Redox Properties of Ru (II/III) Complexes with 1,4,5,6-tetrahydropyrimidyl-2-phenolate

    40th International Conference on Coordination Chemistry  2012 

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  • Cyclic Tetranuclear Rhodium(III) Complexes with Flexible Thyminate(2-) Bridges

    40th International Conference on Coordination Chemistry  2012 

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  • Heterodimetallic Complexes Bridged by 5-(2-Diphenylphosphinoethyl) tetrazolate

    40th International Conference on Coordination Chemistry  2012 

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  • ホスフィン−テトラゾラト型配位子を含む遷移金属錯体配位子を用いた異種金属二核錯体の合成と性質

    日本化学会第92春季年会  2012 

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  • 非対称三座アミン−アミダト型配位子を用いたコバルト(III)錯体の幾何異性と分光化学的性質

    日本化学会第92春季年会  2012 

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  • 遷移金属とランタノイドを含む三核錯体における完全自然分晶

    日本化学会第92春季年会  2012 

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  • アデニナト(1-)およびチミナト(1-)が配位したロジウム(III)錯体の合成と構造および水素結合相互作用

    日本化学会第92春季年会  2012 

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  • 三脚型六座配位子の Co(II) 錯体を錯体配位子として用いた三核錯体の合成と性質

    日本化学会第92春季年会  2012 

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  • Mononuclear and dinuclear metal complexes containing 5-methyletrazolate and its derivative

    XVIIIth International Winter School on Coordination Chemistry  2012 

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  • Preparation of novel metal complexes bearing nucleobases and their hydrogen-bonding interactions

    XVIIIth International Winter School on Coordination Chemistry  2012 

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  • A novel base-responsive reduction of ruthenium complexes bearing phenolate-based ligands with π-conjugating N-H bond

    XVIIIth International Winter School on Coordination Chemistry  2012 

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  • 遷移金属(II)イオンとランタニド(III)イオンを含む三核錯体の完全自然分晶

    錯体化学会第61回討論会  2011 

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  • ビス−イミダゾリルイミン配位子を含む鉄(II)錯体の結晶構造と磁気的性質

    2011年日本化学会西日本大会  2011 

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  • アミダトおよびチオエーテル供与基を持つ直鎖型六座配位子のコバルト(II)および(III)錯体の性質

    2011年日本化学会西日本大会  2011 

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  • イミダゾール基を含むシッフ塩基配位子を用いた新規単核および多核錯体の合成と性質

    2011年日本化学会西日本大会  2011 

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  • 8-(ジフェニルホスファニル)キノリンを含む遷移金属錯体の特異な立体構造の安定化

    日本化学会第91春季年会  2011 

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  • Synthesis and Properties of Maganese(III, IV) Complexes with Amine-amidate Type Tridentate Ligand

    2011 Symposium on Coordination Compounds as Molecular Magnetic Materials  2011 

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  • Linkage Isomerism of 5-Methyltetrazolato-Bridged Dinuclear Complexes

    2011 Symposium on Coordination Compounds as Molecular Magnetic Materials  2011 

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  • Reactivity and Electronic State of Cobalt Complexes with Strand Type Ligands Containing Thiether-Amidato-Pyridyl Donor Sets

    2011 Symposium on Coordination Compounds as Molecular Magnetic Materials  2011 

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  • 非対称三座アミン−アミダト配位子を用いたコバルト(III)錯体の幾何選択性と水素結合相互作用

    2011年日本化学会西日本大会  2011 

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  • アミン−アミダト三座配位子を用いたマンガン(III,IV)錯体の合成と性質

    錯体分子素子研究センター「新規分子磁性化合物の探索」2011年シンポジウム  2011 

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  • 5-メチルテトラゾラト架橋二核錯体の結合異性

    錯体分子素子研究センター「新規分子磁性化合物の探索」2011年シンポジウム  2011 

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  • チオエーテル−アミダト−ピリジンドナーセットを持つ直鎖型六座配位子のコバルト錯体の反応性と電子状態

    錯体分子素子研究センター「新規分子磁性化合物の探索」2011年シンポジウム  2011 

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  • R-、RS-1-フェニルエチルアミンと4-フォルミルイミダゾール脱水反応により生成する二座配位子のFe(II)錯体が示すキラル識別集積とスピン転移挙動

    錯体化学会第61回討論会  2011 

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  • イミダゾール−塩化物イオン間の水素結合により生成するキュバン型四核鉄(II)錯体の段階的スピン転移とヒステリシス

    錯体化学会第61回討論会  2011 

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  • イミダゾール含有二座キレート配位子によるfac-及びmer-型鉄(II)錯体の選択的合成とfac-型キュバン集積錯体のカウンターイオンによるスピン転移

    錯体化学会第61回討論会  2011 

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  • 2-Methylimidazole-4-yl-methylideneaminopropylを配位子とするFe(II)スピンクロスオーバー錯体[FeII(HL)3]X,Y: 架橋ハロゲンイオンXと第二陰イオンYの効果

    錯体化学会第61回討論会  2011 

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  • 核酸塩基thymineを構成ユニットとするCp*RhIII四核錯体の合成と構造

    錯体化学会第61回討論会  2011 

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  • 三脚型三座ホスフィン配位子を有する七配位d4金属錯体の合成と構造および性質

    2011年日本化学会西日本大会  2011 

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  • 8-(ジフェニルホスファニル)キノリンを含む八面体型金属錯体の合成と性質

    錯体分子素子研究センター「新規分子磁性化合物の探索」2011年シンポジウム  2011 

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  • テトラゾラト基を含むシッフ塩基型多座配位子を有する金属錯体の合成

    錯体化学会第61回討論会  2011 

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  • イミダゾール基を含むシッフ塩基配位子を用いた新規単核および多核錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • Unusual Redox Properties of Ruthenium(II/III) Complexes with Bidentate 1,4,5,6-Tetrahydropyrimidyl-2-phenol Ligand

    錯体化学会第61回討論会  2011 

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  • ホスフィン−テトラゾラト型配位子が架橋した異種金属二核錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • イミダゾール基と2-ピリジルヒドラゾン部位を持つ非対称三座配位子を含むコバルト(II)錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • 8-(ジフェニルホスファニル)キノリンを含むロジウム(III)及びルテニウム(II)錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • イミダゾール基を有する配位子による新規かご形錯体の合成と性質

    日本化学会第91春季年会  2011 

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  • 特異な構造および電子状態の安定化を可能にする三脚型三座ホスフィン配位子を有するd4金属錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • イミダゾラト架橋による14核かご型錯体の合成と性質

    錯体化学会第61回討論会  2011 

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  • Encapsulated anion in a cubane-like tetranuclear spin crossover iron(II) complex

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Syntheses and properties of mononuclear manganese(II), -(III), and –(IV) complexes with a tripodal ligand

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Geometrical isomers of cobalt(III) complexes with unsymmetrical tridentate n-(alkylamino)salicylamidate ligands

    XVIIth International Winter School on Coordination Chemistry  2010 

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  • Structures and properties of homo- and heterometal trinuclear complexes with tripodal N3O3 type Schiff base ligand

    XVIIth International Winter School on Coordination Chemistry  2010 

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  • Cubane型構造をもつfac-型鉄(II)錯体 [Fe(HLBenzyl)3]Cl•Xの特異なスピンクロスオーバー挙動

    2010年日本化学会西日本大会  2010 

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  • 鉄(II)錯体のキラル集積構造とヒステリシスを持つスピンクロスオーバー

    2010年日本化学会西日本大会  2010 

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  • 2-メチル-4-ホルミルイミダゾールとN,N’-ビス(2-アミノエチル)-1,3-プロパンジアミンからなる六座配位子を用いた鉄(II)錯体のスピン転移と立体配座効果

    2010年日本化学会西日本大会  2010 

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  • イミダゾラト架橋による新規かご型錯体の合成

    2010年日本化学会西日本大会  2010 

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  • 三脚N3O3型6座配位子の単核および多核錯体の性質

    2010年日本化学会西日本大会  2010 

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  • 三脚型6座Schiff塩基配位子を用いた面共有三核錯体の構造および磁気的性質

    錯体分子素子研究センター「新規分子時性化合物の探索」2010年シンポジウム  2010 

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  • 2-メチル-4-フォルミルイミダゾールとモノアミンを配位子とする鉄(II)錯体の多様な集積構造とスピン転移現象

    第60回錯体化学討論会  2010 

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  • イミダゾール基と塩化物イオン間の水素結合で構築されたキュウーバン型4核鉄(II)錯体の多段会スピン転移

    第60回錯体化学討論会  2010 

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  • テトラゾラト誘導体を架橋配位子に用いた異種金属二核錯体の合成と性質

    第60回錯体化学討論会  2010 

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  • ビスイミダゾリルイミン配位子を含む鉄(II)錯体の構造とスピンクロスオーバー挙動

    第60回錯体化学討論会  2010 

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  • イミダゾール基を含む配位子による新規かご型錯体の合成

    第60回錯体化学討論会  2010 

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  • 8-(ジフェニルホスフィノ)キノリンおよびその類縁配位子を含む遷移金属錯体の合成と立体構造

    第60回錯体化学討論会  2010 

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  • イミダゾール基を含む非対称な四座シッフ塩基配位子を用いた遷移金属錯体の合成,構造および反応

    第60回錯体化学討論会  2010 

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  • 特異な構造および電子状態の安定化を可能にする三脚状三座ホスフィン配位子を有するMo, W錯体の合成と性質

    第60回錯体化学討論会  2010 

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  • アミダト供与基を含む直鎖型六座配位子のコバルト錯体に関する反応性と電子状態

    第60回錯体化学討論会  2010 

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  • 5-メチルテトラゾラト架橋Ir–Rh二核錯体の結晶および溶存構造に与える共存配位子の影響

    第60回錯体化学討論会  2010 

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  • Geometrical Isomers of Cobalt Complexes with Unsymmetrical Tridentate (Hydroxybenzamido)alkylamines

    60th Anniversary Conference on Coordination Chemistry in OSAKA, Japan  2010 

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  • Stabilization of three different oxidation states of manganese by using a sole tripodal hexadentate Schiff base ligand

    60th Anniversary Conference on Coordination Chemistry in OSAKA, Japan  2010 

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  • Geometrical Isomers of Cobalt(III) Complexes with Unsymmetrical Tridentate (Hydroxybenzamido)alkylamines

    2nd Okayama University – Copenhagen University collaboration symposium  2010 

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  • Cobalt Complexes with a Strand Type Hexadentate Ligand Containing Thioether-amidate-pyridyl Donor Set

    2nd Okayama University – Copenhagen University collaboration symposium  2010 

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  • Crystal Structures and Isomerization Reactions of Dinuclear Ir–Rh Complexes Bridged by 5-Methyltetrazolate

    2nd Okayama University – Copenhagen University collaboration symposium  2010 

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  • Chiral Recognition using Hydrogen Bonding Framework of Metal Complexes with Tripodal Ligand Containing Imidazole Groups

    2nd Okayama University – Copenhagen University collaboration symposium  2010 

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  • 5-メチルテトラゾラト架橋Ir–Rh二核錯体の結晶構造及び異性化反応

    日本化学会第90春季年会  2010 

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  • Geometrical isomers of cobalt(III) complexes with unsymmetrical tridentate (hydroxybenzamido)alkylamines

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Synthesis of 14-nuclear coordination cage compounds using imidazole-derived ligands

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Structures and magnetic property of seven-coordinate molybdenum(II) complexes containing 1,1,1-tris(dimethylphosphinomethyl)ethane

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Reactivity between metal complexes bearing imidazole group and tetraphenylborate ion

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Synthesis and reaction of ruthenium(II) azido complexes bearing 2-pyridinethiolate

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Crystal structures and isomerization reactions of dinuclear Ir(III)–Rh(III) complexes bridged by 5-methyltetrazolate

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • Cobalt complexes with a linear chain type hexadentate ligand containing amidate and thioether groups

    2010 International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010 

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  • 三脚型配位子を用いた単核マンガン(II), (III), (IV)錯体の合成と性質

    第59回錯体化学討論会  2009 

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  • Nitronyl Nitroxide Radicalを用いたMnIIIシッフ塩基錯体の合成と構造及び磁気的性質

    第59回錯体化学討論会  2009 

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  • アミド基を有する直鎖型六座配位子を用いたコバルト(II/III)錯体の合成と性質

    第59回錯体化学討論会  2009 

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  • 非対称型三座アミドまたはシッフ塩基配位子を用いた金属錯体の合成とその構造および性質

    第59回錯体化学討論会  2009 

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  • 2-シアノエチルホスフィン類を含むCo(III)錯体の構造、性質および反応:テトラゾラト/ホスフィン型キレート錯体の生成

    第59回錯体化学討論会  2009 

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  • 四座シッフ塩基配位子のマンガン(III)錯体にニトロニルニトロキシドラジカルが配位した新奇マンガン(III)錯体の構造と性質

    第58回錯体化学討論会  2008 

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  • STRUCTURES AND MAGNETIC PROPERTIES OF MANGANESE(III) COMPLEXES WITH NITRONYL NITROXIDES

    XVIth International Winter School on Coordination Chemistry  2008 

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  • SYNTHESIS AND PROPERTIES OF MANGANESE(II), -(III), and -(IV) COMPLEXES WITH A TRIPODAL LIGAND

    XVIth International Winter School on Coordination Chemistry  2008 

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  • STRUCTURES AND SPIN STATES OF MONO- AND DINUCLEAR IRON(II) COMPLEXES WITH BIS-IMIDAZOLYLIMINE LIGANDS

    XVIth International Winter School on Coordination Chemistry  2008 

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  • アミド窒素を配位元素とするN2O2 型平面四座配位子を用いたCo(III)、Rh(III)錯体の合成と性質

    第58回錯体化学討論会  2008 

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  • アミド基を有する新規三脚型六座配位子を用いた三価金属錯体の合成と性質

    第58回錯体化学討論会  2008 

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  • メチル置換イミダゾール基を含む三脚型配位子を用いた鉄(III)錯体の合成と性質

    第58回錯体化学討論会  2008 

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  • 非対称三座配位子を用いた鉄(II)錯体の合成と性質

    第58回錯体化学討論会  2008 

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  • 三脚型配位子を用いたマンガン(II),(III),(IV)錯体の合成と性質

    第58回錯体化学討論会  2008 

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  • azine系配位子を含む単核コバルト(III)錯体の合成と性質

    2007年日本化学会西日本大会  2007 

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  • 三脚型アミド配位子を用いた高酸化数金属錯体の合成と性質

    2007年日本化学会西日本大会  2007 

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  • 常磁性Co(III)錯体を錯体配位子とする多核金属錯体の合成と性質

    2007年日本化学会西日本大会  2007 

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  • 非対称三座配位子を用いた鉄(II)錯体の合成と性質

    2007年日本化学会西日本大会  2007 

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  • Synthesis, Crystal Structures and Properties of Carboxylate Bridged Mn(III) Dimers with Tetradentate Schiff Base Ligand

    1st Asian Conference on Coordination Chemistry  2007 

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  • サレンマンガン(III)二量体のカルボキシレート架橋一次元錯体の構造と性質

    2007年日本化学会西日本大会  2007 

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  • カルボキシレート架橋したサレンマンガン(III)二量体[{Mn(salen)}2(RCOO)]nXnの構造と性質

    第57回錯体化学討論会  2007 

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  • スピンクロスオーバー挙動を示す二核の鉄(II)錯体の合成と性質

    第57回錯体化学討論会  2007 

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  • 三脚型配位子を含む3d-4f系多核錯体の構造制御に基づく単分子磁性体の構築

    第57回錯体化学討論会  2007 

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  • [Mn(salen)]+誘導体とニトロニルニトロキシドラジカルから成る一次元化合物の合成とその構造および磁性

    第57回錯体化学討論会  2007 

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  • 自己集合に基づく金属錯体の自然分晶とキラル認識

    第57回錯体化学討論会  2007 

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  • シアノ架橋したサレン-マンガン(III)錯体の合成と磁気挙動

    第56回錯体化学討論会  2006 

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  • 三脚型六座配位子を用いた同種・異種金属三核錯体の構造と磁気的性質

    第56回錯体化学討論会  2006 

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  • 三脚型配位子を含む第一遷移金属―希土類金属系多核錯体の合成、構造および磁気的性質

    第56回錯体化学討論会  2006 

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  • バナジウム―ランタノイド4核錯体の合成と性質

    第56回錯体化学討論会  2006 

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  • Di-2-pyrimidinecarboxamidato錯体を錯体配位子とする多核錯体の合成と性質

    第56回錯体化学討論会  2006 

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  • ビス-イミダゾリルイミン配位子を含む単核および2核錯体の構造と磁気的性質

    第56回錯体化学討論会  2006 

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  • 自己集合に基づく金属錯体のキラル認識と自然分晶

    第56回錯体化学討論会  2006 

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  • 三脚型配位子の鉄(III)錯体の合成、構造とスピンクロスオーバー

    第56回錯体化学討論会  2006 

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  • Thermotropic liquid-crystalline behavior of oxovanadium(IV) complexes with chiral ligands

    20th International Conference on Coordinetion and Bioinorganic Chemistry  2005 

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  • バナジウム-セリウム三核錯体の合成と性質

    第55回錯体化学討論会  2005 

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  • シアノ架橋[Mn(salen))]+誘導体の合成と磁性

    第55回錯体化学討論会  2005 

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  • 三脚型配位子を含む3d-4f系多核錯体の合成、構造および磁気的性質

    第55回錯体化学討論会  2005 

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  • 自己集合に基づくCo(III)錯体の不斉認識と自然分晶

    第55回錯体化学討論会  2005 

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  • 三脚型六座配位子を用いたNi-M-Ni型異種金属三核錯体の構造と磁気的性質

    第55回錯体化学討論会  2005 

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  • クロム錯体を錯体配位子とした混合金属錯体系の構築

    第55回錯体化学討論会  2005 

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  • オキソバナジウム(IV)錯体の液晶性および選択反射

    第55回錯体化学討論会  2005 

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  • Syntheses, structures and magnetic properties of complexes with NiLn, NiLnNi, and NiLnLnNi cores supported by tripodal ligands (Ln = Eu, Gd, Tb, Dy)

    20th International Conference on Coordinetion and Bioinorganic Chemistry  2005 

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  • Magnetic propreties of cyano-bridged [Mn(salen)]+ derivatives

    20th International Conference on Coordinetion and Bioinorganic Chemistry  2005 

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  • Structures and magnetic properties of heterometal complexes with tripodal hexadentate ligands

    20th International Conference on Coordinetion and Bioinorganic Chemistry  2005 

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  • 三脚型六座配位子を用いたNi(II)-M(II)-Ni(II)異種金属多核錯体の合成と性質

    第54回錯体化学討論会  2004 

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  • Syntheses of copper(II)-lanthanoid(III) polynuclear complexes using a dianionic Cu(II) ligand-complex and their magnetic properties

    XIVth Winter School on Coordination Chemistry  2004 

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  • Structures and magnetic properties of 3d-4f complexes with tripodal ligands

    XIVth Winter School on Coordination Chemistry  2004 

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  • Iron complexes with a tripodal ligand containing three imidazole groups: proton-coupled electron transfer reactions and spin crossover behaviors

    XIVth Winter School on Coordination Chemistry  2004 

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  • Ferromagnetic NiII-LnIII interactions in complexes with NiLn, NiLnNi, and NiLnLnNi cores supported by tripodal ligands

    IXth International Conference on Molecule-based Magnets (ICMM2004)  2004 

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  • Novel copper(II)-lanthanoid(III) polynuclear complexes using a dianionic Cu(II) ligand-complex

    IXth International Conference on Molecule-based Magnets (ICMM2004)  2004 

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  • Spin crossover behaviors of FeII, FeIII, and FeII-FeII complexes with tropodal ligand containing three imidazole groups

    IXth International Conference on Molecule-based Magnets (ICMM2004)  2004 

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  • Mössbauer spectroscopic studies of mixed-valence spin-crossover complexes

    IXth International Conference on Molecule-based Magnets (ICMM2004)  2004 

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  • 三脚型イミダゾール配位子を持つ単核錯体のメスバウアースペクトル

    第54回錯体化学討論会  2004 

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  • 三脚型配位子のNi(II)錯体を錯体配位子とした3d-4f系多核錯体の合成と性質

    第54回錯体化学討論会  2004 

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  • イミダゾール基を持つ三脚型Schiff塩基配位子の鉄錯体のスピンクロスオーバー

    第54回錯体化学討論会  2004 

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  • キラルなサリチルアルジミン配位子をもつ金属錯体の液晶性

    第54回錯体化学討論会  2004 

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  • イミダゾール基を含む三脚型配位子を用いたFe(III)錯体の構造とスピンクロスオーバー挙動

    第 53 回錯体化学討論会  2003 

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  • 二次元スピンクロスオーバー鉄(II)錯体の層間相互作用

    第 53 回錯体化学討論会  2003 

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  • アミド配位子を用いたMn(III)-Ln(III)多核錯体の合成と磁性

    第 53 回錯体化学討論会  2003 

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  • 三脚型シッフ塩基配位子を有する鉄(II)錯体の磁気的および分光学的性質

    第 53 回錯体化学討論会  2003 

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  • イミダゾール/イミダゾレート架橋構造を持つ二次元鉄錯体のメスバウアースペクトル

    第 53 回錯体化学討論会  2003 

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  • 三脚型配位子を用いたNi(II)-Ln(III)異種金属多核錯体の合成と性質

    第 53 回錯体化学討論会  2003 

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  • 多様なスピン変換過程をもつ二次元錯体のスピンクロスオーバーとLIESST

    第52回錯体化学討論会  2002 

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  • Fe(II)-Fe(III)混合原子価スピンクロスオーバー錯体のメスバウアースペクトル

    第 52 回錯体化学討論会  2002 

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  • 混合原子価水素結合二次元錯体[FeII(H3L)][FeIII(L)](NO3)2とその関連化合物のスピンクロスオーバーならびにLIESST挙動

    第52回錯体化学討論会  2002 

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  • 三層構造を持つ混合原子価鉄錯体のスピンクロスオーバー挙動

    第52回錯体化学討論会  2002 

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  • 新奇マンガン(III)-ガドリニウム(III)錯体の合成と磁性

    第 51 回錯体化学討論会  2001 

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  • 混合原子価鉄錯体のキラル2次元構造とスピンクロスオーバー

    第 51 回錯体化学討論会  2001 

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  • 三脚型配位子を含む鉄(II)錯体の合成と構造および磁気的性質

    第 51 回錯体化学討論会  2001 

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  • d-f環状四核錯体の合成、構造、磁性

    第 51 回錯体化学討論会  2001 

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  • イミダゾール基を二つ含む三座配位子のコバルト(III)錯体の合成と自然分晶

    第 51 回錯体化学討論会  2001 

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  • イミダゾール基を含む三脚型鉄(II)、(III)錯体のスピン平衡と脱プロトン挙動

    第 50 回錯体化学討論会  2000 

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  • 非等価型銅錯体を錯体配位子とする銅-ガドリニウム錯体の合成と磁性

    日本化学会九州支部・同中国四国支部合同大会  2000 

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  • 三脚型金属(II)錯体のラセミ混合物における結晶系、絶対配置、CDパターンの関係

    日本化学会九州支部・同中国四国支部合同大会  2000 

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  • 三脚型鉄(II)、(III)錯体のイミダゾールプロトンの脱離による電子状態の変化

    日本化学会九州支部・同中国四国支部合同大会  2000 

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  • 自然分晶する三脚型金属錯体の結晶型、絶対配置、CDパターンの関係

    第 50 回錯体化学討論会  2000 

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Research Projects

  • Pioneering of Chiral Functionality Utilizing Absolute Spontaneous Resolution Observed in Transition-metal and Lanthanoid Complexes

    Grant number:24K01498  2024.04 - 2028.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    鈴木 孝義, 三橋 了爾, 砂月 幸成

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    Grant amount:\18460000 ( Direct expense: \14200000 、 Indirect expense:\4260000 )

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  • Creation of Ni(0) with superparamagnetic nature and Ni(I) species and their characterization

    Grant number:16H04118  2016.04 - 2019.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Kuroda Yasushige

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    Grant amount:\17940000 ( Direct expense: \13800000 、 Indirect expense:\4140000 )

    We have succeeded in creating sub-nano sized stable Ni-cluster by utilizing zeolite as a nano-reaction pot and found its prominent superparamagenetic property, and also preparing a novel monovalent nickel ion which accelerates the CO-oxidation reaction even at 300 K. In addition, a monovalent zinc ion, as well as an atomic zinc species, were prepared in zeolite which activate dioxygen at 300 K, resulting in the formation of zinc-oxyl species via zinc ozonide. It has been clarified that thus formed zinc oxyl species activates methane to form methanol at 300 K. On the basis of these data, it has become apparent that the zeolite-lattice as a specific reaction field confers unprecedented electronic states onto the exchanged ions. As a future perspective, it is expected that these fascinating results will give new guidlines for developing efficient materials which exhibit helpful functionalities in both academic and applied fields.

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  • The creation and applications of the hydrogen bonding 3 D assembly system based on the dinuclear iron(II) triple helicate

    Grant number:15K05455  2015.04 - 2018.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    Sunatsuki Yukinari, SUZUKI Takayoshi, KOJIMA Masaaki

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    Grant amount:\4940000 ( Direct expense: \3800000 、 Indirect expense:\1140000 )

    The preparation of 3 D assembly was attempted by the partial deprotonation of the iron(II) triple helicate aiming applications for chiral recognition and molecular sensor. Although the research objective is not reached up to date, tetranuclear tetrahedral molecules developable to cage complexes were obtained instead. In addition, it was revealed that slow conformational change of ligand substituent in solid state causes the scan-rate dependent spin-crossover behavior of a mononuclear Fe(II) complex with related bidentate ligand.

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  • Study for preparations of molecular cages which can be decomposed and re-constructed reversibly and their functions

    Grant number:23550078  2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    SUNATSUKI Yukinari

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    Grant amount:\5200000 ( Direct expense: \4000000 、 Indirect expense:\1200000 )

    The tetradecanuclear nickel(II) complex with Schiff base ligand containing an imidazole group was prepared. This complex is constructed by eight Ni(II) ions on the corners and six Ni(II) ions on the centers of the faces of the cube. Two kinds of Ni(II) ions are bridged by imidazolate group of the deprotonated ligand each other. This complex has a space inside the molecule. The nitrogen containing molecule, hexamethylenetetramine, can be encapsulated in the inner space of the complex. However, non-nitrogen containing molecule, adamantane, can not. The difference of these encapsulating behaviors revealed that this complex can encapsulate the molecule having the weak coordinating ability in its inner space.

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  • A study on Complete Spontaneous Resolution of Transition-Metal Complexes

    Grant number:23655052  2011 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    SUZUKI Takayoshi, SUNATSUKI Yukinari

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    Grant amount:\3900000 ( Direct expense: \3000000 、 Indirect expense:\900000 )

    In this study a novel crystallization phenomenon, namely complete spontaneous resolution, has been studied. When some kind of metal complexes bearing organic ligands without any asymmetric centerwere crystallized in a certain condition, either of an enantiomeric pair was always obtained specifically. Trinuclear transition- metal (TM)-lanthanide (Ln)-TM complexes with two tripodal potentially nonadentate Schiff-base ligands or mononuclear TM complexes containing a tripodal imidazole-derived Schiff-base ligand exhibited such an interesting phenomenon. Also, it was found that a choice of TM and Ln metal ions and that of recrystallization solvent are critical for this phenomenon. At this moment, the origin for complete spontaneous resolution or the outbreak of optical activity of chiral compounds are still veiled, but we have established this fascinating phenomenon with finding examples of high reproducibility.

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  • Synthesis of Single Molecule Magnets Based on the Control of Geometry of Polynuclear 3d-4f Complexes

    Grant number:17350028  2005 - 2006

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    KOJIMA Masaaki, ISHIDA Hiroyuki, SUNATSUKI Yukinari

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    Grant amount:\15300000 ( Direct expense: \15300000 )

    Lanthanide (Ln) metal ions have a large ground-state spin and a strong easy axis magnetic anisotropy, and most of their magnetic interactions with the 3d-transition metal ions are ferromagnetic. All these properties are favorable for 3d-4f complexes to behave as single molecule magnets (SMMs). Polynuclear 3d-4f complexes will meet the requirement to be identified as SMMs by a smaller number of metal ions than the 3d-transition metal clusters. Therefore, 3d-4f complexes are strong candidates for SMMs. In the first year, we have prepared di-, tri-, and tetranuclear Ni^<II>-Ln^<III> complexes by the use of the "complexes as ligands" strategy, and we could control the nuclearity of the complexes by the selection of the additional ligand on the Ln^<III> ion. We used [Ni(HL^1)] (H_3L^1 = 1,1,1-tris(N- salicylideneaminomethyl)ethane) as a complex ligand. The ac susceptibility measurements of the dinucler complex, [(NiL)Dy(hfac)_2(EtOH)] (Hhfac = hexafluoroacetylacetone) revealed that this complex behaves as an SMM at low temperatures. However, it was not easy to prepare trinuclear Ni-Ln-Ni complexe, since the bridging ability of the phenolate oxygen atoms is low. In the second year, we added methoxy groups on the benzene rings of the ligand to increase the stability of the trinuclear complexes, since Ln^<III> ions have a strong affinity toward oxygen. By using [Co^<II>(L^2)]- as a ligand complex, we obtained the trinuclear Co^<II>-Dy^<II>-Co^<II>, [Co(L^2)_2Dy]NO_3. This complex also behaves as an SMM, and has a higher blocking energy barrier than [(NiL)Dy(hfac)_2(EtOH)].

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  • 第一遷移金属-希土類金属系多核金属錯体に基づく単一分子磁石の創製

    Grant number:16750050  2004 - 2005

    日本学術振興会  科学研究費助成事業  若手研究(B)

    砂月 幸成

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    Grant amount:\3700000 ( Direct expense: \3700000 )

    近年、単一分子磁石と呼ばれる化合物が非常に注目を集めているが、これらのほとんどは第一遷移金属イオン(3d金属イオン)のクラスター化合物である。そこで我々は希土類金属イオン(4f金属イオン)に注目した。新奇3d-4f単一分子磁石の合成を目的として、N_3O_3タイプの三脚型Schiff塩基配位子1,1,1-tris(N-salicylideneaminomethyl)ethane(H_3L)のNi(II)単核錯体を錯体配位子として希土類金属イオンに配位させることで、一連のNi(II)-Ln(III)型多核錯体(Ln=Eu,Gd,Tb,Dy)を合成した。4f金属イオンの配位数を満足させるために用いた陰イオン性共存配位子の嵩だかさや架橋能の有無を考慮に入れることで、二核、三核、四核と核数の異なる錯体を系統的に作り分けることに成功した。この中の一つであるNi(II)-Dy(III)二核錯体は単一分子磁石の特徴のひとつである交流磁化率の周波数依存性を示した。現在弱い直流磁場存在下での交流磁化率の測定を共同研究者に依頼しているところである。また、この研究用いたNi(II)単核錯体を3d金属と反応させて得られる三核錯体Ni(II)-Mn(II)-Ni(II)とNi(II)-Fe(III)-Ni(II)はどちらも1-5/2-1のスピン系を持ち、互いに良く似た構造を有するが、Ni(II)-Mn(II)-Ni(II)は強磁性相互作用を示し、Ni(II)-Fe(III)-Ni(II)は反強磁性的相互作用を示した。この理由を理論研究から明らかにした。新たな錯体配位子の候補として合成した1,2-bis(2-hydroxybenzamide)ethaneの単核Co(III)錯体は平面四角形型の常磁性錯体であることが明らかになった。

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  • 光スイッチング分子素子となる水素結合による二次元スピンクロスオーバー鉄錯体

    Grant number:02J05859  2002 - 2004

    日本学術振興会  科学研究費助成事業 特別研究員奨励費  特別研究員奨励費

    砂月 幸成

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    Grant amount:\1500000 ( Direct expense: \1500000 )

    イミダゾール基を含む三脚型配位子の鉄錯体[Fe^<II>H_3L]^<2+>の硝酸塩に1.5等量のアルカリを加え、組成式[Fe^<II>H_3L][Fe^<III>L](NO_3)_2をもつ化合物を得た。このものは、原料の2価プロトン化錯体[Fe^<II>H_3L](NO_3)_2と、イミダゾールプロトンがすべて解離し、さらに空気酸化された3価脱プロトン化錯体[Fe^<III>L]が水素結合により連結した二次元層状構造をもつことを、295Kおよび100KにおけるX線結晶解析により明らかにした。二つの温度での結合拒離の違いからこの化合物は鉄(II)サイトがスピンクロスオーバーを示すことが示唆された。磁化率の温度変化の測定から、この化合物はサンプルを急冷すると5〜100Kの温度範囲で凍結効果を示し、引き続いて100〜200Kの温度範囲で鉄(II)サイトが二段階でスピンクロスオーバーし、サンプルを徐々に冷却した場合には160K付近で鉄(II)サイトが一段階での急激なスピンクロスオーバーを示すことが明らかになった。また200K以上の温度範囲では鉄(III)サイトの緩やかなスピンクロスオーバー挙動が観測された。この挙動はメスバウアースペクトル、ESRスペクトルの測定からも確認された。また、5Kにおいてサンプルに500nmの光を照射すると磁化の増大が観測され、光誘起スピン励起状態トラッピング(LIESST)現象が観測された。この光誘起スピン励起状態は80〜100Kの温度範囲で急速に熱緩和された。また、この化合物はCDスペクトルを示し、自然分晶していることも明らかになった。
    以上の結果は、Angewandte Chemieに投稿し、まもなく掲載される予定である。また、BF_4塩の系について、原料錯体などの関連化合物の性質も含めたFull paperの論文を投稿準備中である。

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    2024.07

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    NMR利用者講習会(4月27日 Teams、参加者149名、10月19日、対面、参加者6名)

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  • 学内NMR依頼測定

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