1992 Fiscal Year Annual Research Report

分子磁性

Research Project

Project/Area Number	04242105
Research Institution	Osaka 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) 杉本豊成京都大学, 工学部, 助教授 (30093256) 木下實東京大学, 物性研究所, 教授 (40011530)
Keywords	分子磁性 / 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	研究の推進:本総括班は計画研究(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)および27件の公募研究を統括し、研究を効率よく推進するために、計画立案、経費の配分、個々の研究間の連絡・調整と協力体制の確立、情報交換の促進、成果の公開と発表を行ってきた。その結果、ほぼ所期の計画通りに初年度の研究を立ちあげ、推進することができた。共通性の高い主要装置である電子スピン共鳴装置は年度内に大阪市立大学に納入された。会議・研究会:第1回総括班会議(5月24日、京都)において、平成4年度における研究計画の推進方法、会議および研究会のスケジュール、外国在住の研究者招へい、広報等について審議した。また第2回総括班会議(10月8日)においては、研究開始状況、予算の執行状況、次年度の研究計画について審議した。以上の総括班会議にしたがって、まず「分子磁性シンポジウム」を2回開催した。第1回シンポジウム、(5月23-24日、京都)は研究の実質的な早期立ち上げを目的として開催し、全班員の研究計画の報告・検討を行った。第2回シンポジウム(1月13-14日、東京)は外国人招へい研究者を含む12名の研究報告を行い、初年度の成果を公開したが、班員(52名)を上回る来聴者(60名、企業12社)が参加しこの領域に対する関心の高さを窺わせた。また総括班の岩村、木下、伊藤の主催する「分子磁性の化学と物理に関する第3回国際会議」(10月25-30日、東京)には班員を中心に129名(海外からの参加者は30名)が参加し、本重点領域研究の成果を公開した。この他に合同班会議を2回(A03-05:川渡、A01-03:京都)、班長会議を6回開催した。広報・出版:ニュースレターを7号まで発刊し、また全班員に関する平成4年度研究成果報告書を作成した。

Research Products

(18 results)

All Other

All Publications (18 results)

[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)
[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)
[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)
[Publications] Y.Nakazawa,M.Kinoshita: "Low temperature magnetic properties of ferromagnetic organic radical,p-NPNN" Phys.Rev.B46. 8906-8914 (1992)
[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)
[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)
[Publications] T.Sugimoto: "Magnetic properties in charge-transfer complexes of high-symmetry organic acceptors" Mat.Res.Soc.Sympo.Proc.247. 417-428 (1992)
[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)
[Publications] T.Sugimoto: "Ferromagnetic interaction in organic radical ion salts" Mol.Cryst.Liq.Cryst.(1993)
[Publications] K.Yamaguchi: "MO theoretical studies of magnetic interactions in clusters of nitronyl nitroxide and related species" Chem.Phys.Lett.190. 353-360 (1992)
[Publications] K.Yamaguchi: "Theoretical calculateons of effective exchange integrals between nitronyl nitroxide with donor and acceptor groups" Chem.Phys.Lett.191. 237-244 (1992)
[Publications] K.Yamaguchi: "Theoretical studies of CT ferromagnets and ferrimagnets metallocenium-TCNE compleses" Mol.Cryst.Liq.Cryst.218. 229-234 (1992)
[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)
[Publications] Y.Fujimura,Hayashi: "Mechanism of external magnetic field dependent fluorescence decays of gaseous carbon disulfide" Chem.Phys.162. 205-212 (1992)
[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)
[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)
[Publications] M.Terazima,T.Azumi: "Photothermal investigations on the dark triplet states" J.Phtotchem.Photobiol.A:Chem.65. 21-28 (1992)
[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)

1992 Fiscal Year Annual Research Report

分子磁性

Principal Investigator

伊藤 公一 大阪市立大学, 理学部, 教授 (70029403)

Research Products

[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)

[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)

[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)

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

[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)

[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)

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

[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)

[Publications] T.Sugimoto: "Ferromagnetic interaction in organic radical ion salts" Mol.Cryst.Liq.Cryst.(1993)

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

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

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

[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)

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

[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)

[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)

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

[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)

伊藤公一大阪市立大学, 理学部, 教授 (70029403)