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2009 Fiscal Year Final Research Report

Development of Supramolecular Magnets toward Multifunction Materials

Research Project

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Project/Area Number 19550135
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional materials chemistry
Research InstitutionThe University of Electro-Communications

Principal Investigator

ISHIDA Takayuki  The University of Electro-Communications, 電気通信学部, 教授 (00232306)

Co-Investigator(Renkei-kenkyūsha) OKAZAWA Atsushi  東京大学, 大学院・総合文化研究科, 助教 (30568275)
Project Period (FY) 2007 – 2009
Keywords電気・磁気的機能 / 分子性磁性体 / 超分子科学 / 単分子磁石 / ホストゲスト錯体
Research Abstract

本研究では有機無機ハイブリッド分子性磁性体を中心に複合機能の開発を進めた。
(1)機能性低次元磁石:ラジカル-コバルト系単一次元鎖磁石からこれまでの世界最高の保磁力をもつ磁性材料を開発した。
(2)分子包接誘起磁性体:ラジカル置換のホスト・配位子分子を構築し、その磁性を超分子化学手法により制御した。
(3)液晶性磁石・可溶化磁石:長鎖アルキル基を有する鉄(II)錯体を合成し、中間相転移とスピン転移の共存する系を得た。

  • Research Products

    (44 results)

All 2010 2009 2008 2007 Other

All Journal Article (28 results) (of which Peer Reviewed: 26 results) Presentation (16 results)

  • [Journal Article] Amino Acid Spin-Labels. An Application of Chelation Ability to a Nickel(II) Ion2010

    • Author(s)
      S. Osada, K. Igarashi, T. Nogami, T. Ishida, Chem. Lett.
    • Journal Title

      39

      Pages: 576-577

    • Peer Reviewed
  • [Journal Article] Hard Magnets after Freezing of Spin Dynamics of Soft Magnets in Cobalt(II)-Radical Chain Compounds2010

    • Author(s)
      Y. Okamura, N. Ishii, T. Nogami, T. Ishida
    • Journal Title

      Bull. Chem. Soc. Jpn. (in press)

      Pages: doi: 10. 1246/bcsj. 20090316

    • Peer Reviewed
  • [Journal Article] 化学の大学入試問題を考えるための基本2010

    • Author(s)
      石田尚行
    • Journal Title

      反応速度式の正しい求め方 58

      Pages: 226-229

  • [Journal Article] Crystal Structures and Magnetic Properties of Two Phases from Imidazolate-bridged Copper(II) 4, 6-Nonanedionate Complexes2009

    • Author(s)
      R. Watanabe, N. Koyama, T. Nogami, T. Ishida, T. Kogane
    • Journal Title

      Chem. Lett. 38

      Pages: 30-31

    • Peer Reviewed
  • [Journal Article] Ferromagnetic Superexchange Coupling through a Low-Spin Iron(II) Ion in a Mixed-Valent Iron(III, II, III) Meso-Helicate2009

    • Author(s)
      T. Mochizuki, T. Nogami, T. Ishida
    • Journal Title

      Inorg. Chem. 48

      Pages: 2254-2259

    • Peer Reviewed
  • [Journal Article] Spin-crossover Transition in a Meso-phase Iron(II) Thiocyanate Complex Chelated with 4-Hexadecyl-N-(2-pyridylmethylene)ani line2009

    • Author(s)
      Y. Oso, T. Ishida
    • Journal Title

      Chem. Lett. 38

      Pages: 604-605

    • Peer Reviewed
  • [Journal Article] The Hardest Magnet from a Coordination Polymer of Alternating Cobalt(II)-Radical Heterospins2009

    • Author(s)
      Y. Okamura, T. Nogami, T. Ishida
    • Journal Title

      Chem. Lett. 38

      Pages: 740-741

    • Peer Reviewed
  • [Journal Article] Long-Range Order in the One-Dimensional Cobalt(II)-Radical Coordination Polymer Magnet Probed by Muon Spin Rotation and Relaxation2009

    • Author(s)
      T. Ishida, Y. Okamura, I. Watanabe
    • Journal Title

      Inorg. Chem. 48

      Pages: 7012-7014

    • Peer Reviewed
  • [Journal Article] Super-superexchange coupling through a hydrogen bond in a linear copper(II) complex, [Cu(LH)(L)]・BF_4・2H_2O (LH = N-tert-butyl-N-2-pyridylhydroxylamine ), " A. Okazawa. and2009

    • Author(s)
      A. Okazawa., T. Ishida
    • Journal Title

      Phys. Lett. 480

      Pages: 198

    • Peer Reviewed
  • [Journal Article] Correction: "Ferromagnetic Dy-Ni and Antiferromagnetic Dy-Cu Couplings in Single-Molecule Magnets [Dy2Ni] and [Dy2Cu], "2009

    • Author(s)
      A. Okazawa, T. Nogami, H. Nojiri, T. Ishida
    • Journal Title

      Inorg. Chem. 48

      Pages: 3292

    • Peer Reviewed
  • [Journal Article] Ferromagnetic Coupling of Copper(II) and Nickel(II) Complexes with a Cyclam-Based Paramagnetic Host2009

    • Author(s)
      K. Igarashi, T. Nogami, T. Ishida
    • Journal Title

      Polyhedron 28

      Pages: 1672-1677

  • [Journal Article] A. Okazawa, T. Nogami, T. Ishida2009

    • Author(s)
      A. Okazawa, T. Nogami, T. Ishida
    • Journal Title

      Polyhedron 28

      Pages: 1917-1921

    • Peer Reviewed
  • [Journal Article] Magnetic Properties and Exchange Couplings of One-Dimensionally Arrayed 4f-3d Heterometallic [Ln2Cu2]n Compounds2009

    • Author(s)
      A. Okazawa, R. Watanabe, H. Nojiri, T. Nogami, T. Ishida
    • Journal Title

      Polyhedron 28

      Pages: 1808-1813

    • Peer Reviewed
  • [Journal Article] Structures and Magnetic Properties of Imidazolate-Bridged Tetra-and Polynuclear Copper(II) Complexes2009

    • Author(s)
      N. Koyama, R. Watanabe, T. Ishida, T. Nogami, T. Kogane
    • Journal Title

      Polyhedron 28

      Pages: 2001-2009

    • Peer Reviewed
  • [Journal Article] Giant Coercivity in a One-Dimensional Cobalt-Radical Coordination Magnet2008

    • Author(s)
      N. Ishii, Y. Okamura, S. Chiba, T. Nogami, T. Ishida
    • Journal Title

      J. Am. Chem. Soc. 130

      Pages: 24-25

    • Peer Reviewed
  • [Journal Article] Exchange Coupling and Energy-Level Crossing in a Magnetic Chain [Dy2Cu2]n Evaluated by High-Frequency Electron Paramagnetic Resonance2008

    • Author(s)
      A. Okazawa, T. Nogami, H. Nojiri, T. Ishida
    • Journal Title

      Chem. Mater. 20

      Pages: 3110-3119

    • Peer Reviewed
  • [Journal Article] Pyrazine-Bridged Linear Pentanuclear Copper(II) Complex and Related Tri-and Dinuclear Complexes Showing Various Coordination Structures and Magnetic Couplings2008

    • Author(s)
      N. Koyama, T. Ishida, T. Nogami, T. Kogane
    • Journal Title

      Polyhedron 27

      Pages: 2341-2348

    • Peer Reviewed
  • [Journal Article] Spin-crossover Transition Coupled with Another Solid-Solid Phase Transition for Iron(II) Thiocyanate Complexes Chelated with Alkylated N-(Di-2-pyridylmethylene)anilines2008

    • Author(s)
      Y. Oso, D. Kanatsuki, S. Saito, T. Nogami, T. Ishida
    • Journal Title

      Chem. Lett. 37

      Pages: 760-761

    • Peer Reviewed
  • [Journal Article] Magneto-Structure Relationship in Copper(II) and Nickel(II) Complexes Chelated with Stable tert-Butyl 5-Phenyl-2-pyridyl Nitroxide and Related Radicals2008

    • Author(s)
      A. Okazawa, T. Nogami, T. Ishida
    • Journal Title

      Inorg. Chem. 47

      Pages: 8859-8868

    • Peer Reviewed
  • [Journal Article] Ferromagnetic Dy-Ni and Antiferromagnetic Dy-Cu Couplings in Single-Molecule Magnets [Dy2Ni] and [Dy2Cu]2008

    • Author(s)
      A. Okazawa, T. Nogami, H. Nojiri, T. Ishida
    • Journal Title

      Inorg. Chem. 47

      Pages: 9763-9765

    • Peer Reviewed
  • [Journal Article] tert-Butyl 2-Pyridyl Nitroxide Available as a Paramagnetic Chelate Ligand for Strongly Exchange-Coupled Metal-Radical Compounds2007

    • Author(s)
      A. Okazawa, T. Nogami, T. Ishida
    • Journal Title

      Chem. Mater. 19

      Pages: 2733-2735

    • Peer Reviewed
  • [Journal Article] Quantum Tunneling of Magnetization via Well-Defined Dy-Cu Exchange Coupling in a Ferrimagnetic High-Spin [Dy4Cu] Single-Molecule Magnet2007

    • Author(s)
      S. Ueki, T. Ishida, T. Nogami, K.-Y. Choi, H. Nojiri
    • Journal Title

      Chem. Phys. Lett. 440

      Pages: 263-267

    • Peer Reviewed
  • [Journal Article] Electron Donors from Natural Products: Donating and Ligating Abilities and Charge-Transfer Complex Formation of Imidazo[1, 2-a]pyrazin-3(7H)-ones2007

    • Author(s)
      M. Suzuki, T. Fujii, T. Nogami, T. Hirano, T. Ishida
    • Journal Title

      Multifunctional Conducting Molecular Materials, ed. by G. Saito, F. Wudl, R.C. Haddon, T. Katsumi, T. Enoki, H.E. Katz, M. Maesato

      Pages: 55-58

    • Peer Reviewed
  • [Journal Article] Mono-and Dinitroxide Radicals from 9, 9'(10H, 10'H)-Spirobiacridine: An Approach to a D2d Triplet Biradical2007

    • Author(s)
      T. Ishida, M. Ooishi, N. Ishii, H. Mori, T. Nogami
    • Journal Title

      Polyhedron 26

      Pages: 1793-1799

    • Peer Reviewed
  • [Journal Article] Tetranuclear Heterometallic Cycle Dy2Cu2 and the Corresponding Polymer Showing Slow Relaxation of Magnetization Reorientation2007

    • Author(s)
      S. Ueki, A. Okazawa, T. Ishida, T. Nogami
    • Journal Title

      Polyhedron 26

      Pages: 1970-1976

    • Peer Reviewed
  • [Journal Article] Preparation, Structures, and Magnetic Properties of Precursors for Chelating Compounds of 2-Pyridyl Nitroxide Derivatives2007

    • Author(s)
      A. Okazawa, T. Ishida, T. Nogami
    • Journal Title

      Polyhedron 26

      Pages: 1965-1969

    • Peer Reviewed
  • [Journal Article] Structures and Magnetic Properties of One-dimensional Copper(II) Complexes Bridged with Diazaaromatic Rings2007

    • Author(s)
      T. Kogane, N. Koyama, T. Ishida, T. Nogami
    • Journal Title

      Polyhedron 26

      Pages: 1811-1819

    • Peer Reviewed
  • [Journal Article] Magnetic Exchange Coupling Tunable by Means of Selective Cation Binding into Poly(radical-armed) Azacrowns

    • Author(s)
      K. Igarashi, T. Nogami, T. Ishida
    • Journal Title

      Chem. Commun. 2007

      Pages: 501-503

    • Peer Reviewed
  • [Presentation] The Hardest Magnets from Alternating Cobalt(II)-Radical Heterospins2009

    • Author(s)
      T. Ishida, Y. Okamura, I. Watanabe
    • Organizer
      The 3rd Japanese-Russian Workshop on Open Shell Compounds and Molecular Spin Devices
    • Place of Presentation
      Awaji Yumebutai International Conference Center, Awaji Island, Japan.
    • Year and Date
      20091115-20091118
  • [Presentation] Ferromagnetic Coupling of Copper(II) and Nickel(II) Complexes with a Cyclam-based Paramagnetic Host2008

    • Author(s)
      K. Igarashi, T. Nogami, T. Ishida
    • Organizer
      11th International Conference on Molecule-based Magnets (ICMM)
    • Place of Presentation
      Florence, Italy.
    • Year and Date
      20080921-20080924
  • [Presentation] Strong Ferromagnetic Exchange Couplings in Copper(II) and Nickel(II) Complexes Chelated with tert-Butyl 5-Methoxyphenyl-2-Pyridyl Nitroxide. A Magneto-Structure Relationship2008

    • Author(s)
      A. Okazawa, T. Nogami, T. Ishida
    • Organizer
      11th ICMM
    • Place of Presentation
      Florence, Italy
    • Year and Date
      20080921-20080924
  • [Presentation] Magnetic Properties and Exchange Couplings of One-Dimensionally Arrayed 4f-3d Heterometallic [Ln2Cu2]n Comounds2008

    • Author(s)
      A. Okazawa, R. Watanabe, H. Nojiri, T. Nogami, T. Ishida
    • Organizer
      11th ICMM
    • Place of Presentation
      Florence, Italy
    • Year and Date
      20080921-20080924
  • [Presentation] Structures and Magnetic Properties of Tetra- and Polynuclear Copper(II) Complexes Bridged with Imidazolate Rings2008

    • Author(s)
      N. Koyama, R. Watanabe, T. Ishida, T. Nogami, T. Kogane
    • Organizer
      11th ICMM
    • Place of Presentation
      Florence, Italy
    • Year and Date
      20080921-20080924
  • [Presentation] High-Field ESR on Molecular-Based Nano-Magnets- Application to Polyhedron Clusters and Rare-Earth Compounds2008

    • Author(s)
      Y. Oshima, H. Nojiri, S. Yoshii, P. Kogerler, M. Luban, A. Muller, J. Schnack, A. Okazawa T. Ishida
    • Organizer
      Asian-Pacific EPR/ESR Symposium (APES08)
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      20080713-20080718
  • [Presentation] ・SR Study on Cobalt(II)-Radical Low-Dimensional Magnets2008

    • Author(s)
      T. Ishida
    • Organizer
      3rd Program Advisory Committee Meeting for Materials and Life Science at RIKEN Nishina Center
    • Place of Presentation
      Wako
    • Year and Date
      20080327-20080328
  • [Presentation] Muon Spin Rotation and Relaxation on the One-Dimensional Cobalt(II)-Radical Coordination Polymer Magnet2008

    • Author(s)
      T. Ishida, Y. Okamura, I. Watanabe
    • Organizer
      RIKEN-RAL Muon Facility Report
    • Year and Date
      20080000
  • [Presentation] Ferro-/Antiferromagnetic Coupling Switch Accompanied by Single-Crystal-to-Single-Crystal Phase Transition in [Cu2(2pyNO)4](BF4)22007

    • Author(s)
      T. Ishida, A. Okazawa, T. Nogami, D. Hashizume
    • Organizer
      ISESS-SEST2007, A Joint Conference of the International Symposium on Electron Spin Science and the 46th Annual Meeting of the Society of Electron Spin Science and Technology
    • Place of Presentation
      Shizuoka
    • Year and Date
      20071106-20071109
  • [Presentation] Exchange Coupling and Energy-Level Structure of 4f-3d Heterometallic Single-Molecule Magnets by High-Frequency EPR2007

    • Author(s)
      A. Okazawa, T. Nogami, H. Nojiri, T. Ishida
    • Organizer
      ISESS-SEST2007
    • Place of Presentation
      Shizuoka
    • Year and Date
      20071106-20071109
  • [Presentation] A Family of Nitronyl Nitroxide-Co(II) Chain Complexes Showing Giant Coercivity2007

    • Author(s)
      Y. Okamura, T. Ishida, T. Nogami
    • Organizer
      ISESS-SEST2007
    • Place of Presentation
      Shizuoka
    • Year and Date
      20071106-20071109
  • [Presentation] Study on Chelate Complexes Involving Heteroaromatic Nitroxides2007

    • Author(s)
      Y. Terakado, A. Okazawa, T. Nogami, T. Ishida
    • Organizer
      ISESS-SEST2007
    • Place of Presentation
      Shizuoka
    • Year and Date
      20071106-20071109
  • [Presentation] Spin-crossover Behavior Coupled with Mesophase Transition for Iron(II) Thiocyanate Complexes Chelated with 2-Pyridylmethyleneanilines2007

    • Author(s)
      Y. Oso, S. Saito, T. Ishida, T. Nogami
    • Organizer
      ISESS-SEST2007
    • Place of Presentation
      Shizuoka
    • Year and Date
      20071106-20071109
  • [Presentation] High-Field EPR Study on a 4f-3d Single-Chain Magnet [Dy2Cu2]n2007

    • Author(s)
      A. Okazawa, T. Ishida, T. Nogami, H. Nojiri
    • Organizer
      Asian Conference on Coordination Chemistry (ACCC 2007)
    • Place of Presentation
      Okazaki
    • Year and Date
      20070729-20070802
  • [Presentation] High-Frequency EPR Study on a 4f-3d Single-Chain Magnets [Dy2Cu2]n2007

    • Author(s)
      A. Okazawa, T. Nogami, H. Nojiri, T. Ishida
    • Organizer
      21st Century COE Program International Symposium on Coherent Optical Science
    • Place of Presentation
      Chofu, Tokyo
    • Year and Date
      2007-12-15
  • [Presentation]

    • Author(s)
      http://ttf.pc.uec.ac.jp/www.page/Ishida.html

URL: 

Published: 2011-06-18   Modified: 2016-04-21  

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