Development of Novel Molecular Materials Responsive to External Stimuli

• Project/Area Number: 19750107
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Functional materials chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: TAKAHASHI Kazuyuki The University of Tokyo, 物性研究所, 助教 (60342953)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,580,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥2,800,000 (Direct Cost: ¥2,800,000)
• Keywords: スピンクロスオーバー錯体 / 電気伝導性 / 誘電性 / 複合機能性 / 外場応答 / プロトニクス / 結晶構造 / 相転移 / 外場応答性 / 分子性固体 / 複合物性 / 誘電体物性 / 光応答 / 双安定状態

Research Abstract

温度・圧力・光・電場などの外場に応答する新しい分子性物質を開発するために、双安定分子であるスピンクロスオーバー分子を分子性伝導体や分子性誘電体へ導入することにより、スピンクロスオーバーと伝導性・誘電性のカップルしたスピンクロスオーバー伝導体や誘電体の開発に成功した。そのカップリングのメカニズムの検討からスピンクロスオーバー分子間に働く強い分子間相互作用が複合機能性を実現するための重要なポイントであることを明らかにした。

Research Products

• [Journal Article] Mechanism of reversible spin transition with a thermal hysteresis loop in [Fe^<III>(qsal)_2[Ni(dmise)_2]・ 2CH_3CN : Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conductina system (2009)
  • Author(s): K. Takahashi et.al.
  • Journal Title: polyhedron (in press)(掲載確定)
  • Peer Reviewed
• [Journal Article] Evidence of the chemical uniaxial strain effect on electrical conductivity in the spin-crossover conducting molecular system: [Fe^<III>qnal)_2][Pd(dmit)_2]_5・Acetone (2008)
  • Author(s): K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, H. Tajima, Y. Einaga, O. Sato
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 6688-6689
  • Peer Reviewed
• [Journal Article] Dielectric response and electric-field-induced metastable state in an organic conductor β-(meso-DMBEDT-TTF)_2PF_6 (2008)
  • Author(s): S. Niizeki, F. Yoshikane, K. Kohno, K Takahashi, H. Mori, Y. Bando, T. Kawamoto, T. Mori
  • Journal Title: J. Phys. Soc. Jpn. 77
  • NAID: 110006821291
  • Peer Reviewed
• [Journal Article] Syntheses, crystal structures, and physical properties of copper complexes with dimethylthio-pyrazino-selenathiafulvalene (=Dmt-Pyra-STF) as ligand: trans-CuCl_2(Dmt-Pyra-STF)_2 and Cu_2Br_<2.5>(Dmt-Pyra-STF) (2008)
  • Author(s): S. Ichikawa, K. Takahashi, H. Mori, J. Yamaura
  • Journal Title: Solid State Sci. 10 Pages: 1724-1728
  • Peer Reviewed
• [Journal Article] Intrinsic carrier doping in antiferromagnetically interacted supramolecular copper complexes with (pyrazino)tetrathiafulvalene (pyra-TTF) as the ligand, [Cu^<TT>Cl_2(pyra-TTF)] and (pyra-TTF)_2[Cu^T_3Cl_4(pyra-TTF)] (2008)
  • Author(s): S. Ichikawa, S. Kimura, K. Takahashi, H. Mori, G. Yoshida, Y. Manabe, M. Matsuda, H. Tajima
  • Journal Title: Inorg. Chem. 47 Pages: 4140-4145
  • Peer Reviewed
• [Journal Article] Intrinsic carrier doping in antiterromagnetically interacted supramolecular copper complexes with (pyrazino)tetrathiafulvalene (pyra-TTF) as the ligand, [Cu^<II>Cl_2(pyra-TTF)] and (pyra-TTF)_2[CuI_3Cl_4(pyra-TTF)] (2008)
  • Author(s): S. Ichikawa et.al.
  • Journal Title: Inorg. Chem 47 Pages: 4140-4145
  • Peer Reviewed
• [Journal Article] Syntheses, crystal structures, and physical properties of copper complexes with thinethylthio-pyrazino-selenathiafulvalene (=Drot-Pyra-STF) as ligand : trans- CuCl_2(Dmt-Pyra-STF)_2 and Cu_2Br_<2.5>(Dmt-Pyra-STF) (2008)
  • Author(s): S. Ichikawa et.al.
  • Journal Title: Solid State Sci 10 Pages: 1724-1728
  • Peer Reviewed
• [Journal Article] Dielectric response and electric-field-induced metastable state in an organic conductor β-(meso -DMBEDT-TTF)_2PF_6 (2008)
  • Author(s): S. Niizeki et.al.
  • Journal Title: J. Phys. Soc. Jpn. 77
  • Peer Reviewed
• [Journal Article] Evidence of the chemical uniaxial strain effect on electrical conductivity in the spin-crossover conducting molecular system : [Fe^<III>(qnal)_2] [Pd(dmit)_2]_5・Acetone (2008)
  • Author(s): K. Takahashi et.al.
  • Journal Title: J. Am. Chem. Soc 130 Pages: 6688-6689
  • Peer Reviewed
• [Journal Article] Intrinsic Carrier Doping in Antiferromagnetic Supramolecular Copper Complexes with Pgra-TTF[=(pyrazino)tetrathiafulvalene]as the Ligand, [Cu^IICl_2(Pyra-TTF)]and(Pyra-TTF)2[Cu^I_3Cl_4(Pyra-TTF)] (2008)
  • Author(s): S. Ichikawa, et. al.
  • Journal Title: Inorg. Chem. (In press)(掲載碓定)
  • Peer Reviewed
• [Journal Article] Syntheses, Crystal Structures, and Physical Properties of Copper Complexes with Dimethylthio-Pyrazino-Selenathiafulvalene(=Dmt-Pyra-STF) as ligand: trans-[CuCl_2(Dmt-Pyra-STF)_2]and[Cu_2Br_<2.5>(Dmt-Pyra-STF)] (2008)
  • Author(s): S. Ichikawa, et. al.
  • Journal Title: Solid State Sci. (In press)(掲載碓定)
  • Peer Reviewed
• [Journal Article] Evidence of the Chemical Uniaxial Strain Effect on Electrical Conductivity in the Spin-Crossover Conducting Molecular System:[Fe^III(qnal)_2][Pd(dmit)_2]_5 acetone (2008)
  • Author(s): K. Takahashi, et. al.
  • Journal Title: J. Am. Chem. Soc. (In press)(掲載碓定)
  • Peer Reviewed
• [Journal Article] Metal-organic frameworks from copper dimers with cis- and trans-1,4-cyclohexanedicarboxylate and cis,cis-1,3,5-cyclohexanetricarboxylate (2007)
  • Author(s): H. Kumagai, M. Akita-Tanaka, K. Inoue, K, Takahashi, H. Kobayashi, S. Vilminot, M. Kurmoo
  • Journal Title: Inorg. Chem. 46 Pages: 5949-5956
  • Peer Reviewed
• [Journal Article] (^nBu_4N)[Ni(dmstfdt)_2]: A planar nickel coordination complex with an extended-TTF ligand exhibiting metallic conduction, metal-insulator transition, and weak ferromagnetism (2007)
  • Author(s): E. Fujiwara, K. Yamamoto, M. Shimamura, B. Zhou, A. Kobayashi, K. Takahashi, Y Okano, H. Cui, H. Kobayashi
  • Journal Title: Chem. Mater. 19 Pages: 553-558
  • Peer Reviewed
• [Journal Article] Metal-Organic Frameworks from Copper Dimers with cis-and trans-1,4-Cyclohexanedicarboxylate and cis, cis-1,3,5-Cyclohexanetricarboxylate (2007)
  • Author(s): H. Kumagai, et. al.
  • Journal Title: Inorg. Chem. 46 Pages: 5949-5956
  • Peer Reviewed
• [Journal Article] Mechanism of reversible spin transition with a thermal hysteresis loop in [Fe^<III>(qsal)_2][Ni(dmise)_2]・2CH_3CN: Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conducting system
  • Author(s): K. Takahashi, H. Mori, H. Kobayashi, O. Sato
  • Journal Title: Polyhedron 2009 (in press)
  • Peer Reviewed
• [Presentation] 有機伝導体β-(mso-DMBEDT-TTF)_2PF_6における常圧下磁気抵抗効果 (2009)
  • Author(s): 森初果
  • Organizer: 日本物理学会第64回春季大会
  • Place of Presentation: 池袋
  • Year and Date: 2009-03-30
• [Presentation] 有機伝導体β-(BEDT-TTF)_2PF_6における室温下負性抵抗 (2009)
  • Author(s): 浅野友徳
  • Organizer: 日本物理学会第64回春季大会
  • Place of Presentation: 池袋
  • Year and Date: 2009-03-30
• [Presentation] β-(meso-DMeET)_2PF_6における常圧下磁気抵抗効果 (2009)
  • Author(s): 高橋一志
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 船橋
  • Year and Date: 2009-03-29
• [Presentation] α-(BEDT-TTF)_2I_3の非線形伝導と巨大磁気抵抗 (2009)
  • Author(s): 森英一
  • Organizer: 日本物理学会第64回春季大会
  • Place of Presentation: 池袋
  • Year and Date: 2009-03-29
• [Presentation] プロトン性対アニオンを持つスピンクロスオーバー錯体の構造と物性 (2009)
  • Author(s): 高橋一志, 森初果, 松田真生, 田島裕之, 花島太郎, 栄長泰明, 山本薫, 薬師久弥, 佐藤治
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 日本大学理工学部(船橋)
  • Year and Date: 2009-03-28
• [Presentation] プロトン性対アニオンを持つスピンクロスオーバー錯体の構造と物性 (2009)
  • Author(s): 高橋一志
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 船橋
  • Year and Date: 2009-03-28
• [Presentation] 鉄(III)スピンクロスオーバー錯体に対する圧力効果の検討 (2009)
  • Author(s): 佐藤哲也, 高橋一志, 森初果, 松田真生, 田島裕之, 佐藤治
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 日本大学理工学部(船橋)
  • Year and Date: 2009-03-27
• [Presentation] 鉄(III)スピンクロスオーバー錯体に対する圧力効果の検討 (2009)
  • Author(s): 佐藤哲也
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 船橋
  • Year and Date: 2009-03-07
• [Presentation] 鉄(III)錯体におけるスピン状態の圧力効果 (2008)
  • Author(s): 佐藤哲也, 高橋一志, 森初果, 田島裕之, 佐藤治
  • Organizer: 分子科学総合討論会2008
  • Place of Presentation: 博多
  • Year and Date: 2008-09-27
• [Presentation] 鉄(III)錯体にお縮環系含窒素有機ドナーを配位子とする金属錯体の開発 (2008)
  • Author(s): 市川俊
  • Organizer: 分子科学総合討論会2008
  • Place of Presentation: 博多
  • Year and Date: 2008-09-27
• [Presentation] β-(meso-DMBEDT-TTF)_2PF_6の非線形伝導における電場効果・熱効果の検討 (2008)
  • Author(s): 新関彰一
  • Organizer: 分子科学総合討論会2008
  • Place of Presentation: 博多
  • Year and Date: 2008-09-27
• [Presentation] Development of Spin-Crossover Molecular Conducting Systems (2008)
  • Author(s): K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, M. Matsuda, H. Tajima, Y. Einaga, O. Sato
  • Organizer: The Xlth International Conference on Molecule-based Magnets
  • Place of Presentation: Florence (Italy)
  • Year and Date: 2008-09-22
• [Presentation] Development of Spin-crossover Molecular Conducting Systems (2008)
  • Author(s): Kazuyuki Takahashi
  • Organizer: The XIth International Conference on Molecule-based Magnets
  • Place of Presentation: Florence (Italy)
  • Year and Date: 2008-09-22
• [Presentation] Crystal Structures and Physical Properties of Spin-crossover Molecular Conductors (2008)
  • Author(s): K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, H. Tajima, Y Einaga, O. Sato
  • Organizer: IUCr Satellite Meeting 2008
  • Place of Presentation: Senri Life Science Center (Osaka)
  • Year and Date: 2008-08-21
• [Presentation] Crystal Structures and Physical Properties of Spin-crossover Molecular Conductors (2008)
  • Author(s): Kazuyuki Takahashi
  • Organizer: IUCr Satellite Meeting 2008
  • Place of Presentation: Osaka
  • Year and Date: 2008-08-21
• [Presentation] 複合機能性鉄(III)スピンクロスオーバー錯体の物性と光応答 (2008)
  • Author(s): 高橋一志, 崔亨波, 岡野芳則, 小林速男, 森初果, 田島裕之, 栄長泰明, 佐藤治
  • Organizer: 第21回配位化合物の光化学討論会
  • Place of Presentation: 北里大学(相模原)
  • Year and Date: 2008-08-07
• [Presentation] 複合機能性鉄(III)スピンクロスオーバー錯体の物性と光応答 (2008)
  • Author(s): 高橋一志
  • Organizer: 第21回配位化合物の光化学討論会
  • Place of Presentation: 相模原
  • Year and Date: 2008-08-07
• [Presentation] The Role of Supramolecular Interactions between Spin-crossover Cations in the Spin-crossover Conductors (2008)
  • Author(s): K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, Y. Einaga, O. Sato
  • Organizer: International Symposium on Molecular Conductors 2008
  • Place of Presentation: Institute for Molecular Science (Okazaki)
  • Year and Date: 2008-07-24
• [Presentation] The Role of Supramolecular Interactions between Spin-crossover Cations in the Spin-crossover Conductors (2008)
  • Author(s): Kazuyuki Takahashi
  • Organizer: International Symposium on Molecular Conductors 2008
  • Place of Presentation: 岡崎
  • Year and Date: 2008-07-24
• [Presentation] Room-temperature negative-resistance effect in a charge-fluctuated state for a novel molecular conductor α-(meso-DMeET)_2CF_3SO_3 (2008)
  • Author(s): Hatsumi Mori
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2008
  • Place of Presentation: Recife (Brazil)
  • Year and Date: 2008-07-10
• [Presentation] Phase diagram, large magnetoresistance, and competition with superconducting state in the checkerboard-type charge ordered molecular conductor : β-(meso-DMeET)_2PF_6 (2008)
  • Author(s): Kazuyuki Takahashi
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2008
  • Place of Presentation: Recife (Brazil)
  • Year and Date: 2008-07-07
• [Presentation] Formation of checkerboard-type charge ordering and giant nonlinear conduction in an organic conductor β-(meso-DMBEDT-TTF)_2PF_6 (2008)
  • Author(s): Shoichi Niizeki
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2008
  • Place of Presentation: Recife (Brazil)
  • Year and Date: 2008-07-07
• [Presentation] meso-DMBEDT-TTFラジカル塩の電荷秩序と磁気抵抗 (2008)
  • Author(s): Kazuyuki Takahashi
  • Organizer: ISSPワークショップ
  • Place of Presentation: 柏
  • Year and Date: 2008-05-21
• [Presentation] スピンクロスオーバー現象による固体電子物性の制御 (2008)
  • Author(s): 高橋一志, 大知弘典, 森初果, 佐藤治
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 立教大学(池袋)
  • Year and Date: 2008-03-27
• [Presentation] α-(mesoDMeET)_2CF_3SO_3の室温非線形伝導 (2008)
  • Author(s): 吉兼 芙美子
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 池袋
  • Year and Date: 2008-03-27
• [Presentation] 水素結合の一次元鎖構造を有する二成分結晶[4,6-dmpH][Hca] (2008)
  • Author(s): 大知 弘典
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 池袋
  • Year and Date: 2008-03-27
• [Presentation] β-(meso-DMeET)_2PF_6におけるチェッカーボード型電荷秩序と超伝導の競合 (2008)
  • Author(s): 高橋 一志
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 池袋
  • Year and Date: 2008-03-27
• [Presentation] スピンクロスオーバー現象による分子性固体の電子物性制御 (2008)
  • Author(s): 高橋 一志
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 池袋
  • Year and Date: 2008-03-27
• [Presentation] 有機導体β-(meso-DMBEDT-TTF)_2PF_6における時間分解非線形伝導測定 (2008)
  • Author(s): 新関 彰一
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 大阪
  • Year and Date: 2008-03-26
• [Presentation] β-(meso-DMeET)_2PF_6におけるチェッカーボード型電荷秩序と超伝導の競合 (2008)
  • Author(s): 森 初果
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 大阪
  • Year and Date: 2008-03-26
• [Presentation] PROXYL縮環ドナーの合成と性質 (2007)
  • Author(s): 高橋 一志
  • Organizer: 第37回構造有機化学討論会
  • Place of Presentation: 札幌
  • Year and Date: 2007-10-29
• [Presentation] Investigation of the Conducting Supramolecular Copper Complex Containing the Pyrazino-Fused Organic Donor as the Ligand (2007)
  • Author(s): Shun Ichikawa
  • Organizer: The 2007 International Symposium on Crystalline Organic Metals, Superconductors and ferromagnets
  • Place of Presentation: Peniscola(Spain)
  • Year and Date: 2007-09-26
• [Presentation] Electrical Conductivity Modulation Induced by the Chemical Pressure Effect Associated with a Spin-crossover Phenomenon (2007)
  • Author(s): K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, Y. Einaga, O. Sato
  • Organizer: The 2007 International Symposium on Crystalline Organic Metals, Superconductors and ferromagnets
  • Place of Presentation: Pefiiscola (Spain)
  • Year and Date: 2007-09-25
• [Presentation] Electrical Conductivity Modulation Induced by the Chemical Pressure Effect Associated with a Spin-crossover Phenomenon (2007)
  • Author(s): Kazuyuki Takahashi
  • Organizer: The 2007 International Symposium on Crystalline Organic Metals, Superconductors and ferromagnets
  • Place of Presentation: Peniscola(Spain)
  • Year and Date: 2007-09-25
• [Presentation] meso-DMeET及びmeso-DMeET-STF塩の誘電応答と電場応答 (2007)
  • Author(s): 吉兼 芙美子
  • Organizer: 第1回分子科学討論会
  • Place of Presentation: 仙台
  • Year and Date: 2007-09-20
• [Presentation] β-(meso-DMBEDT-TTF)_2PF_6における非線形伝導 (2007)
  • Author(s): 新関 彰一
  • Organizer: 第1回分子科学討論会
  • Place of Presentation: 仙台
  • Year and Date: 2007-09-19
• [Presentation] Pyra-STFとその誘導体を配位子とする銅錯体の構造と磁性 (2007)
  • Author(s): 市川 俊
  • Organizer: 第1回分子科学討論会
  • Place of Presentation: 仙台
  • Year and Date: 2007-09-18
• [Presentation] 立体障害を導入したβ-(meso-DMeET)_2PF_6の電荷秩序と超伝導の競合 (2007)
  • Author(s): 森中 直紀
  • Organizer: 第1回分子科学討論会
  • Place of Presentation: 仙台
  • Year and Date: 2007-09-17
• [Remarks] 「有機単結晶の作製方法と電気伝導度計測」高橋一志,大阪大学有機エレクトロニクス研究会Winter School,神戸,2008年12月18日
• [Remarks] 「外場応答型分子性物質の開発」高橋一志,JST-CREST「ナノ構造体材料」領域 総括ミーティング,葉山,2008年3月2日