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分子磁性

Research Project

Project/Area Number 04242105
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionOsaka City University

Principal Investigator

伊藤 公一  大阪市立大学, 理学部, 教授 (70029403)

Co-Investigator(Kenkyū-buntansha) 安積 徹  東北大学, 理学部, 教授 (90013490)
林 久治  理化学研究所, 主任研究員 (50087508)
山口 兆  大阪大学, 理学部, 教授 (80029537)
杉本 豊成  大阪市立大学, 先端科学研究所, 教授 (30093256)
木下 實  山口東京理科大学, 基礎工学部, 教授 (40011530)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥64,100,000 (Direct Cost: ¥64,100,000)
Fiscal Year 1995: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1994: ¥12,900,000 (Direct Cost: ¥12,900,000)
Fiscal Year 1993: ¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1992: ¥41,200,000 (Direct Cost: ¥41,200,000)
Keywords分子磁性 / スピン整列機構 / 有機強磁性 / 強磁性有機金属錯体 / 有機強磁性金属 / 化学反応の磁場効果 / 同位体濃縮 / ラジカル対 / 有機強磁性体 / 磁性理論 / 反応制御 / 動的挙動 / 電子スピン共鳴
Research Abstract

本科学研究費補助金により、重点領域研究「分子磁性」の平成4年度〜6年度の研究成果をとりまとめ、それを公開した。本重点領域研究は5つの研究項目(A01分子磁性発現とその機構、A02新しい分子磁性系の設計と構築、A03分子磁性の理論、A04分子磁性による反応制御、A05分子磁性の動的挙動)から構成され、各項目について世界をリ-ドする研究成果をあげた。すなわち、1)分子磁性におけるスピン整列機構の解明、2)多数の有機強磁性体の実現、3)強磁性有機金属錯体の開拓、4)強磁性有機金属の設計、5)化学反応の磁場効果による重原子の同位体濃縮、6)強磁場下における新しい磁場効果、7)気相における磁場効果の統一的解釈、8)ラジカル対の構造とダイナミックスの解明、等である。これらのとりまとめと公開は次のように実施した。
ニュースレターの刊行:前年度までに引き続き、8月20日付で第24号(53頁)を刊行し、公開シンポジウムの講演予稿集を兼ねると共に、次年度に開催される「分子磁性」関連の国際会議の案内とした。
公開シンポジウム:第7回分子磁性公開シンポジウムを8月31日〜9月1日に日本化学会館ホールにて開催し、班長から各項目の研究成果をとりまとめて報告すると共に、代表的成果を各項目毎に1件ずつ報告した。講演件数は10件で、参加者は全班員と大学、研究所、および企業関係者を含めて110名であった。
研究経過等の報告:852篇の発表論文リストを含む「研究経過等の報告書」(81頁)を印刷した。また10月17日の研究経過等の報告(ヒアリング)のための説明資料(34頁)を作成した。
研究成果報告書:本年度については予算の都合上、別途予算(研究成果公開促進費・一般学術図書)により刊行した「分子磁性-新しい磁性体と反応制御-」(学会出版センター)をもってかえることとした。

Report

(4 results)
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (49 results)

All Other

All Publications (49 results)

  • [Publications] 伊藤公一、他: "Weak Intramolecular Exchange Interaction between Two Carbenic Units in a Novel Organic High-spin Ion.ESR Studies." Journal of the American Chemical Society. 117. 11292-11298 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 伊藤公一、他: "New Aspects of High-Spin Chemistry" Molecular Crystals and Liquid Crystals. 271. 129-146 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 木下 實、他: "Ferromagnetism and Antiferromagnetism in Organic Radical Crystal" Physica B. 213/214. 257-261 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 木下 實、他: "Two Dimensional Ferromagnetic Intermolecular Interactions in Crystals of the p-Cyanophenyl Nitronyl Nitroxide Radical" Journal of Material Chemistry. 5. 41-46 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 杉本 豊成、他: "Weak Ferromagnetism below 12 K in a Lithium Tetrafluorotetra-cyanoquiodimethanide Salt" Chemical Physics Letters. 235. 183-186 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 杉本 豊成、他: "ESR Studies of Lithium Tetrafluorotetracyanoquinodimethanide Salt Exhibiting Weak Ferromagnetism below 12 K" Synthetic Metals. 171. 1787-1788 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 林 久治、他: "Anomalous Magnetic Feild Effects Observed in the Reaction of a Triplet Biradical Involving an O-Centered Radical." Journal of Physical Chemistry. 99. 17074-17077 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 林 久治、他: "Magnetic Field Effects on the Photodissociation Reaction of Triphenylphosphine in Non-Viscous Homogenious Solutions." Chemical Physics Letters. 245. 591-597 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 山口 兆、他: "Theoretical Studies of Spin Density Populations on Nitroxide and Nitronylnitroxide Derivatives" Chemical Physics Letters. 240. 268-277 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 山口 兆、他: "No-overlap and Orientation Principle for Ferromagnetic Interactions between Nitroxide Groups." Chemical Physics Letters. 235. 414-421 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 安積 徹、他: "Time-Resolved CIDNP-Detected ESR Spectrum in the Photochemical Hydrogen Abstraction Reaction of Benzoquinone." Magnetic Resonance in Medicine. 6. 393-395 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 安積 徹、他: "Phosphorescence and Zero-Field Optically Detected Magnetic Resonance Studies of(nd)^<10> Transition-Metal Complexes." Journal of Physical Chemistry. 99. 7242-7245 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 西出 宏之、他: "Synthesis of and Ferromagnetic Coupling in Poly(phenylene-vinylene)s Bearing Built-in t-Butyl Nitroxide" Bulletin of the Chemical Society of Japan. 69. 499-508 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 西出 宏之、他: "π-Conjugated Polyradicals with Poly(phenylenvinylene)Skeleton and Their Through-bond and Long-range Interaction" Molecular Crystals and Liquid Crystals. 272. 131-138 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 谷本 能文、他: "Effect of High Magnetic Field on the Decay Rate of Chain-linked Intramolecular Exciplex Fluorescence" Chemical Physics Letters. 246. 171-175 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 谷本 能文、他: "Biological Responses in Caenorhabditis Elegans to High Magnetic Field" Experientia. 51. 284-288 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 工位 武治、他: "2,2′_3,4,4′,6,6′-Hexabromodipheny1carbene.The First Stable TriPlet Carbene in Fluid Solution at Room Temperature" Journal of the Amerian Chemical Society. 117. 6376-6377 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 工位 武治、他: "π-Spin Density Determination of Phenylnitronyle Nitroxide Radical: A Liquid-Phase ENDOR-TRIPLEE Study" Molecular Crystals and Liquid Crystals. 271. 55-66 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 伊藤 公一、他: "分子磁性-新しい磁性体と反応制御-" 学会出版センター, 440 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 伊藤 公一、他: "Topology and spin alignment in a novel organic high-spin molecule,bipheny1-3,4′-bis(phenylmethylene),as studied by ESR" The Journal of the American Chemical Society. 116. 11499-11505 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 木下 實、他: "Organic radical crystals,α-nitronyl nitroxide family: high-field magnetization study" Physica B. 201. 497-499 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 杉本 豊成、他: "Novel redox behavior of an electron donating [5] radicalene and its related derivatives" The Journal of Physical Chemistry. 98. 252-268 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 山口 兆、他: "Electronic structures of poly-cation and -anion of C60.Possible mechanisms of organic ferromagnetism" Chemical Physics Letters. 226. 372-380 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 林 久治、他: "Magnetic field effects observed upon photolysis of parasubstituted diphenyl disulfides in micellar solutions" The Journal of Physical Chemistry. 98. 4069-4075 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 安積 徹、他: "Direct analysis of hydrogen transfer reaction from p-benzosemiquinone radical to p-benzoquinone by time resolved CIDNP method" Spectrochimica Acta. 50A. 1443-1450 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 伊藤 公一: "Novel organic ions of high-spin states" Mol.Cryst.Liq.Cryst.232. 271-288 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 木下 實: "Ferromagnetism in organic crystals" Mol.Cryst.Liq.Cryst.232. 1-12 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 杉本 豊成、他: "Spin-Spin coupling between the two unpaires electrons in bis(tetrathiafulvalenyl)ketone dications" Adv.Mat.5. 741-743 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 山口 兆、他: "High-spin ion radicals of polyenes and polyamines" Chem.Phys.Lett.207. 9-14 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 林 久治、他: "Magnetic field effects on the photodecomposition of p-amino-phenyl disulfide in a micellar solution" J.Phys.Chem.97. 1733-1735 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 安積 徹、他: "Spin dynamics and chain dynamics of biradicals generated by the photocleavage of cycloalkanone" J.Phys.Chem.97. 9562-9565 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Miura,K.Itoh: "Molecular design,synthesis and magnetic characterization of poly(phenylacetylene)with pi-topolegulated pendant nitronyl radicals as models for ferromagnets" J.Polym.Soc.30. 956-966 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Matsushita,K.Itoh: "Novel organic ions of high-spin states II;Determination of the spin multiplicity of the ground state and H-ENDOR study of the monoanion of m-phenylenbis(PM)" J.Am.Chem.Soc.114. 7470-7475 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Teki,K.Itoh: "Role of the spin correlation and weakly interacting model for the spin alignment in organic high-spin molecules" Mol.Cryst.Liq.Cryst.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Nakazawa,M.Kinoshita: "Low temperature magnetic properties of ferromagnetic organic radical,p-NPNN" Phys.Rev.B46. 8906-8914 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Takahashi,M.Kinoshita: "Mean-field theory of quasi one-dimensional Heisenberg gamma-phase p-NPNN" J.Phys.Soc.Japan. 61. 3745-3751 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.sugano,M.Kinoshita: "Ferromagnetic intermolecular interaction in an organic radical 3-quinolyl nitronyl nitroxide(3-QNNN)" Chem.Phys.Lett.200. 235-240 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Sugimoto: "Magnetic properties in charge-transfer complexes of high-symmetry organic acceptors" Mat.Res.Soc.Sympo.Proc.247. 417-428 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Sugimoto: "Properties of several different electronically-excited biradical structures in the ground states of bicyclic tricalicene and tricyclic tetracalicene" Bull.Inst.Chem.Res.,Kyoto Univ.70. 329-332 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Sugimoto: "Ferromagnetic interaction in organic radical ion salts" Mol.Cryst.Liq.Cryst.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi: "MO theoretical studies of magnetic interactions in clusters of nitronyl nitroxide and related species" Chem.Phys.Lett.190. 353-360 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi: "Theoretical calculateons of effective exchange integrals between nitronyl nitroxide with donor and acceptor groups" Chem.Phys.Lett.191. 237-244 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi: "Theoretical studies of CT ferromagnets and ferrimagnets metallocenium-TCNE compleses" Mol.Cryst.Liq.Cryst.218. 229-234 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Sakaguchi,H.Hayashi: "Internal magnetic field effect of transition metal ions on the photochemical reaction of naphthoquinone in micelles" Chem.Phys.162. 119-129 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Fujimura,Hayashi: "Mechanism of external magnetic field dependent fluorescence decays of gaseous carbon disulfide" Chem.Phys.162. 205-212 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Wakasa,H.Hayashi: "The first direct observation of magnetic field effects on the dynamic behavior of radical pairs involving group 14 silicon germanium centered radicals" J.Am.Chem.Soc.114. 8171-8176 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Maeda,T.Azumi: "Determination of the exchange integral by the low field CIDNP in intramolecular hydrogen abstraction reaction of polymethylene linked xanthone and xanthene" J.Phys.Chem.96. 4884-4889 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Terazima,T.Azumi: "Photothermal investigations on the dark triplet states" J.Phtotchem.Photobiol.A:Chem.65. 21-28 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Aizawa,T.Azumi: "The effect of the Coulomb force on the diffusional motion of radicals as studied by the sovent permittivity dependence of the CIDNP intensity" Chem.Phys.Lett.195. 16-20 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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