2000 Fiscal Year Annual Research Report

分子スピニクスのための高磁場Wバンド量子位相FTパルス電子磁気共鳴法の開発

Research Project

Project/Area Number	10304049
Research Institution	Osaka City University
Principal Investigator	工位武治大阪市立大学, 理学部, 教授 (10117955)
Co-Investigator(Kenkyū-buntansha)	塩見大輔大阪市立大学, 理学部, 助教授 (40260799) 佐藤和信大阪市立大学, 理学部, 講師 (90264796)
Keywords	分子磁性 / 有機磁性 / 分子スピニクス / 高磁場ESR / パルスESR / 量子位相 / Wバンド電子磁気共鳴 / スピン波
Research Abstract	本年度も、新分子・物質開発においては当初の計画どおり、これまでに我々が見出してきた強スピン分極型安定高スピン有機分子系を骨格とし、自己集積化の部位をもつ液晶モデル系の合成経路の開発を引き続き行った。また、これまでにモノアニオンラジカル結晶化に成功した例が2報なされているが、それらの手法を修飾し、C_<60>をベースとする新規な多価アニオン高スピン有機分子系クラスターの結晶化の試みを引き続き行った。ヘテロ原子核を拡張π共役系にもつ新規な多価カチオン高スピン基底状態系の合成と2次元型超高スピンオリゴカルベン系のスピン同定を、パルスESR分光とベースとした遷移モーメント分光法の開発によっておこなった。引き続き、今なお論争中のC_<60>多価アニオンの高スピン状態の生成と基底状態の実験的な帰属をFT電子スピンニューテーション分光法によって行い、新たに異なるスピン状態間のインコヒーレントな共鳴トンネル現象を見出した。また、理論と実験の両面から、高スピン状態と低スピン状態間のコヒーレント共鳴的な量子スピントンネル現象を、ヤーン・テラー相互作用Assistedなスピンボトルネックに関連したものであることを証明した。その結果、アルカリ金属をドープしたCo_<60>結晶の超伝導機構を説明するヤーン・テラー理論に初めて実験的な証拠を提供した。C_<60>多価アニオン系ついて、高周波/高磁場WバンドESR測定を試み、微細構造定数の絶対符号の確定を試みた。人工磁性格子系に固有の巨大磁気双極子由来のスピン波は、新しい物質スピン波であるだけでなく、スピニクスデバイスの基本原形の一つであるので、強磁性共鳴の低温下マイクロ波平行励起実験を共鳴周波数と遷移強度の静磁場方向依存性の測定と理論的なモデル解析など本格的に行った。

Research Products

(46 results)

All Other

All Publications (46 results)

[Publications] Kazunobu Sato et al.: "Spin Characterization of Lanthanoid Ion Eu^<2+>(^8S_<7/2>) in a CaF_2 Single Crystal by Two-Dimensional Electron Spin Transient Nutation Spectroscopy"Two-Dimensional Correlation Spectroscopy, American Institute of Physics. 337-340 (2000)
[Publications] Takeji Takui et al.: "Two-Dimensional FT-Pulsed Electron Spin Transient Nutation Spectroscopy"Two-Dimensional Correlation Spectroscopy, American Institute of Physics. 134-143 (2000)
[Publications] M.Candida B.L.Shohoji et al.: "Electronic and Molecular Structures of Polyanionic C_<60> Fullerene and High-Spin C_<60>^<n-> Clusters Studied by ESR/2D-Electron Spin Transient Nutation Spectroscopy"Two-Dimensional Correlation Spectroscopy, American Institute of Physics. 333-336 (2000)
[Publications] Yasushi Morita et al.: "New Persistent Radicals : Synthesis and Electronic Spin Structure of 2,5-Di-tert-butyl-6-Oxophenalenoxyl Derivatives"Journal of American Chemical Society. 122. 4825-4826 (2000)
[Publications] Koji Kamiyama et al.: "Benzoic Acid and Phenol Derivatives of Nitronyl Nitroxide Biradical as Building Blocks of Organic Molecule-Based Ferrimagnetcs"Applied Magnetic Resonance. 19. 45-57 (2000)
[Publications] Masahiro Nishizawa et al.: "Evidence for the Breakdown of Simple Classical Pictures of Organic Molecule-Based Ferrimagnetics : Low-Temperature Crystal Structure and Single-Crystal ESR Studies of an Organic Heterospin System"Journal of Physical Chemistry. 104. 503-509 (2000)
[Publications] Daisuke Shiomi et al.: "Spin-Spin Correlation Function and Magnetic Susceptibility of Quantum Ferrimagnetic Spin Chains as Models for Organic Molecule-Based Ferrimagnetics"Journal of Physical Chemistry. 104. 1961-1965 (2000)
[Publications] M.Candida B.L.Shohoji et al.: "Electronic Quartet and Triplet States of Polyanionic C_<60> Fullerrene and Their Anomalous Spin Relaxation As Studied by cw-ESR/2D-Electron Spin Nutation Spectroscopy"Journal of American Chemical Society. 122. 2962-2963 (2000)
[Publications] Akira Izuoka et al.: "Spin Alignment in Singly Oxidized Spin-Polarized Diradical Donor : Thianthrene Bis (nitronyl nitroxide)"Journal of American Chemical Society. 122. 3234-3235 (2000)
[Publications] Shuichiro Hase et al.: "Phenol-substituted nitronyl nitroxide biradicals with a triplet (S=1) ground state"Journal of Materials Chemistry. 11. 756-760 (2001)
[Publications] Kazunobu Sato et al.: "Pulsed ESR/2D-electron spin transient nutation study of stable high-spin polycarbenes"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "ESR/^1H-ENDOR (TRIPLE) studies on generation and decay processes of a triangulene derivative, the first non-kekule polynuclear aromatic hydrocarbon"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Hideto Matsuoka et al.: "Transition moment spectroscopy-based simulation of two-dimensional electron spin transient nutation spectra of Eu^<2+> ion in a CaF_2 single crystal"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Shigeaki Nakazawa et al.: "Spin quartet and triplet states of polyanionic C_<60> fullerenes and their anomalous spin relaxation as studied by CW-ESR/2D-electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Shigeaki Nakazawa et al.: "Polyanionic C_<60>-based high-spin molecular clusters as studied by pulsed ESR/2D electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Koya Tanaka et al.: "Electronic and molecular structures of di[dianthrylcarbene] coupled by 1,4-diethynylbenzene as studied by cw/pulsed ESR spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Nobuyuki Oda et al.: "Molecular and electronic structures of high-spin polyphenylene-based oligo nitrenes as studied by ESR spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "Electron-nuclear magnetic resonance studies on electronic spin structure of novel persistent neutral radical with 1,3-diaza-phenalene skeleton"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "Electronic spin identification of paramagnetic centers in crystalline solids of C_<60> and its derivatives as studied by ESR/2D electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Motoko Sakai et al.: "Low-dimensional molecule-based magnets ; structures and magnetic properties of copper (II) complexes with hydrogen-bonded network"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Ko Furukawa et al.: "Dynamic magnetic properties from microstructured ferromagnetic thin films with 1-d periodic lattice structure"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Yasushi Morita et al.: "New persistent radicals : Synthesis and electronic spin structure of 2,5-di-t-butyl-6-oxophenalonoxyl derivatives"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Daisuke Shiomi et al.: "Quantum ferrimagnetic spin chains as studied by numerical calculations of a heisenberg spin hamiltonian and ESR experiments"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Shuichiro Hase et al.: "Magnetic properties of phenol-substituted nitronyl nitroxide biradicals and their anion radical salts"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Takayasu Kanaya et al.: "Nitroxide triradicals as building blocks of molecule-based ferrimagnetics"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Koji Kamiyama et al.: "Intramolecular magnetic interactions and solid state magnetic properties of phenol and benzoic acid derivatives of nitronyl nitroxide biradicals"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Tukahisa Nishio et al.: "^<14>N-ENDOR and spin lattice relaxation study of high-spin ferric iron (II) octaethylporphyrin"Magnetic Resonance and Related Phenomena. (印刷中). (2001)
[Publications] Hideto Matsuoka et al.: "Transition Moment Spectroscopy Based on Pulsed EPR : Complete Assignment of Complicated EPR Spectra from Electronic and Nuclear High-Spin Systems"Polyhedron. (印刷中). (2001)
[Publications] Takayasu Kanaya et al.: "Single-Component Ferrimagnetics : Triplet-Doublet Composite Molecules as Constituents of Purely Organic Molecule-Based Ferrimagnets"Polyhedron. (印刷中). (2001)
[Publications] Motoko Sakai et al.: "Structures and Magnetic Properties of Cu (II) Complexes with Hydrogen-Bonded Network ; Novel Functionality of Low-Dimensional Molecule-Based Magnets"Polyhedron. (印刷中). (2001)
[Publications] Shuichiro Hase et al.: "Magnetic Properties of Phenol-Substituted Nitronyl Nitroxide Biradicals as Building Blocks of Organic Salt Ferrimagnets"Polyhedron. (印刷中). (2001)
[Publications] Kazunobu Sato et al.: "Pulsed ESR/2D-electron spin transient nutation study of stable high spin polycarbenes"Synthetic Metals. (印刷中). (2001)
[Publications] Koya Tanaka et al.: "CW/pulsed ESR study of Bis[dianthrylcarbene] coupled by 1,4-Diethylbenzene"Synthetic Metals. (印刷中). (2001)
[Publications] Shigeaki Nakazawa et al.: "Electronic states of polyanionic high-spin C_<60> fullerene and their clusters : Anomalous spin relaxation and Jahn-Teller effects"Synthetic Metals. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "Electronic spin structure of novel persistent neutral radical with 1,3-Diaza-phenalene skeleton as studied by electron-nuclear magnetic resonance"Synthetic Metals. (印刷中). (2001)
[Publications] Motoko Sakai et al.: "Low-dimentional molecule-based magnets with hydrogen-bonded network"Synthetic Metals. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "X-and W-band ESR study on γ-cyclodextrin bicapped C_<60> after NH_3-gas doping"Synthetic Metals. (印刷中). (2001)
[Publications] Tukahisa Nishio et al.: "Ground-state high-spin ferric iron (III) octaethylporphyrin as studied by single-crystal pulsed ESR/CW ^<14>N-ENDOR spectrscopy"Synthetic Metals. (印刷中). (2001)
[Publications] Daisuke Shiomi et al.: "Molecular design of organic ferrimagnets"Synthetic Metals. (印刷中). (2001)
[Publications] Nobuyuki Oda et al.: "Highly symmetric high-spin oligonitrenes ; Molecular design for super high-spin systems with robust π-spin polarization"Synthetic Metals. (印刷中). (2001)
[Publications] Kozo Fukui et al.: "The first non-kekule polynuclear aromatic high-spin hydrocarbon : Generation of a triangulene derivative and band structure calculation of triangulene-based high-spin hydrocarbons"Synthetic Metals. (印刷中). (2001)
[Publications] Kazunobu Sato et al.: "Electronic and molecular structures of dendrimeric high-spin polycarbenes as studied by CW and pulsed ESR-based electron spin transient nutation spectroscopy"Molecular Crystals and Liquid Crystals. (印刷中). (2001)
[Publications] Daisuke Shiomi et al.: "Organic molecule-based ferrimagnetism : Magnetic properties of a model compound and numerical calculations of a model spin Hamiltonian"Molecular Crystals and Liquid Crystals. (印刷中). (2001)
[Publications] Suguru Maki et al.: "Hydrogen-bonded open-shell molecules : Synthesis and physical properties of the oxophenalenoxyl-based radical with hydroxyl group"Molecular Crystals and Liquid Crystals. (印刷中). (2001)
[Publications] Nobuyuki Oda et al.: "Molecular and electronic spin structures of high-spin polyphenylene-based oligonitrenes with high symmetry : A semiempirical approach to fine-structure tensors"Molecular Crystals and Liquid Crystals. (印刷中). (2001)
[Publications] Koya Tanaka et al.: "Extremely π-delocalized nature of dianthrylcarbene-based high-spin systems as studied by CW and pulsed 2-D electron-spin transient nutation spectroscopy"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

2000 Fiscal Year Annual Research Report

分子スピニクスのための高磁場Wバンド量子位相FTパルス電子磁気共鳴法の開発

Principal Investigator

工位 武治 大阪市立大学, 理学部, 教授 (10117955)

Research Products

[Publications] Kazunobu Sato et al.: "Spin Characterization of Lanthanoid Ion Eu^<2+>(^8S_<7/2>) in a CaF_2 Single Crystal by Two-Dimensional Electron Spin Transient Nutation Spectroscopy"Two-Dimensional Correlation Spectroscopy, American Institute of Physics. 337-340 (2000)

[Publications] Takeji Takui et al.: "Two-Dimensional FT-Pulsed Electron Spin Transient Nutation Spectroscopy"Two-Dimensional Correlation Spectroscopy, American Institute of Physics. 134-143 (2000)

[Publications] Yasushi Morita et al.: "New Persistent Radicals : Synthesis and Electronic Spin Structure of 2,5-Di-tert-butyl-6-Oxophenalenoxyl Derivatives"Journal of American Chemical Society. 122. 4825-4826 (2000)

[Publications] Koji Kamiyama et al.: "Benzoic Acid and Phenol Derivatives of Nitronyl Nitroxide Biradical as Building Blocks of Organic Molecule-Based Ferrimagnetcs"Applied Magnetic Resonance. 19. 45-57 (2000)

[Publications] Masahiro Nishizawa et al.: "Evidence for the Breakdown of Simple Classical Pictures of Organic Molecule-Based Ferrimagnetics : Low-Temperature Crystal Structure and Single-Crystal ESR Studies of an Organic Heterospin System"Journal of Physical Chemistry. 104. 503-509 (2000)

[Publications] Daisuke Shiomi et al.: "Spin-Spin Correlation Function and Magnetic Susceptibility of Quantum Ferrimagnetic Spin Chains as Models for Organic Molecule-Based Ferrimagnetics"Journal of Physical Chemistry. 104. 1961-1965 (2000)

[Publications] M.Candida B.L.Shohoji et al.: "Electronic Quartet and Triplet States of Polyanionic C_<60> Fullerrene and Their Anomalous Spin Relaxation As Studied by cw-ESR/2D-Electron Spin Nutation Spectroscopy"Journal of American Chemical Society. 122. 2962-2963 (2000)

[Publications] Akira Izuoka et al.: "Spin Alignment in Singly Oxidized Spin-Polarized Diradical Donor : Thianthrene Bis (nitronyl nitroxide)"Journal of American Chemical Society. 122. 3234-3235 (2000)

[Publications] Shuichiro Hase et al.: "Phenol-substituted nitronyl nitroxide biradicals with a triplet (S=1) ground state"Journal of Materials Chemistry. 11. 756-760 (2001)

[Publications] Kazunobu Sato et al.: "Pulsed ESR/2D-electron spin transient nutation study of stable high-spin polycarbenes"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "ESR/^1H-ENDOR (TRIPLE) studies on generation and decay processes of a triangulene derivative, the first non-kekule polynuclear aromatic hydrocarbon"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Hideto Matsuoka et al.: "Transition moment spectroscopy-based simulation of two-dimensional electron spin transient nutation spectra of Eu^<2+> ion in a CaF_2 single crystal"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Shigeaki Nakazawa et al.: "Spin quartet and triplet states of polyanionic C_<60> fullerenes and their anomalous spin relaxation as studied by CW-ESR/2D-electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Shigeaki Nakazawa et al.: "Polyanionic C_<60>-based high-spin molecular clusters as studied by pulsed ESR/2D electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Koya Tanaka et al.: "Electronic and molecular structures of di[dianthrylcarbene] coupled by 1,4-diethynylbenzene as studied by cw/pulsed ESR spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Nobuyuki Oda et al.: "Molecular and electronic structures of high-spin polyphenylene-based oligo nitrenes as studied by ESR spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "Electron-nuclear magnetic resonance studies on electronic spin structure of novel persistent neutral radical with 1,3-diaza-phenalene skeleton"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "Electronic spin identification of paramagnetic centers in crystalline solids of C_<60> and its derivatives as studied by ESR/2D electron spin transient nutation spectroscopy"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Motoko Sakai et al.: "Low-dimensional molecule-based magnets ; structures and magnetic properties of copper (II) complexes with hydrogen-bonded network"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Ko Furukawa et al.: "Dynamic magnetic properties from microstructured ferromagnetic thin films with 1-d periodic lattice structure"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Yasushi Morita et al.: "New persistent radicals : Synthesis and electronic spin structure of 2,5-di-t-butyl-6-oxophenalonoxyl derivatives"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Daisuke Shiomi et al.: "Quantum ferrimagnetic spin chains as studied by numerical calculations of a heisenberg spin hamiltonian and ESR experiments"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Shuichiro Hase et al.: "Magnetic properties of phenol-substituted nitronyl nitroxide biradicals and their anion radical salts"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Takayasu Kanaya et al.: "Nitroxide triradicals as building blocks of molecule-based ferrimagnetics"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Koji Kamiyama et al.: "Intramolecular magnetic interactions and solid state magnetic properties of phenol and benzoic acid derivatives of nitronyl nitroxide biradicals"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Tukahisa Nishio et al.: "^<14>N-ENDOR and spin lattice relaxation study of high-spin ferric iron (II) octaethylporphyrin"Magnetic Resonance and Related Phenomena. (印刷中). (2001)

[Publications] Hideto Matsuoka et al.: "Transition Moment Spectroscopy Based on Pulsed EPR : Complete Assignment of Complicated EPR Spectra from Electronic and Nuclear High-Spin Systems"Polyhedron. (印刷中). (2001)

[Publications] Takayasu Kanaya et al.: "Single-Component Ferrimagnetics : Triplet-Doublet Composite Molecules as Constituents of Purely Organic Molecule-Based Ferrimagnets"Polyhedron. (印刷中). (2001)

[Publications] Motoko Sakai et al.: "Structures and Magnetic Properties of Cu (II) Complexes with Hydrogen-Bonded Network ; Novel Functionality of Low-Dimensional Molecule-Based Magnets"Polyhedron. (印刷中). (2001)

[Publications] Shuichiro Hase et al.: "Magnetic Properties of Phenol-Substituted Nitronyl Nitroxide Biradicals as Building Blocks of Organic Salt Ferrimagnets"Polyhedron. (印刷中). (2001)

[Publications] Kazunobu Sato et al.: "Pulsed ESR/2D-electron spin transient nutation study of stable high spin polycarbenes"Synthetic Metals. (印刷中). (2001)

[Publications] Koya Tanaka et al.: "CW/pulsed ESR study of Bis[dianthrylcarbene] coupled by 1,4-Diethylbenzene"Synthetic Metals. (印刷中). (2001)

[Publications] Shigeaki Nakazawa et al.: "Electronic states of polyanionic high-spin C_<60> fullerene and their clusters : Anomalous spin relaxation and Jahn-Teller effects"Synthetic Metals. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "Electronic spin structure of novel persistent neutral radical with 1,3-Diaza-phenalene skeleton as studied by electron-nuclear magnetic resonance"Synthetic Metals. (印刷中). (2001)

[Publications] Motoko Sakai et al.: "Low-dimentional molecule-based magnets with hydrogen-bonded network"Synthetic Metals. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "X-and W-band ESR study on γ-cyclodextrin bicapped C_<60> after NH_3-gas doping"Synthetic Metals. (印刷中). (2001)

[Publications] Tukahisa Nishio et al.: "Ground-state high-spin ferric iron (III) octaethylporphyrin as studied by single-crystal pulsed ESR/CW ^<14>N-ENDOR spectrscopy"Synthetic Metals. (印刷中). (2001)

[Publications] Daisuke Shiomi et al.: "Molecular design of organic ferrimagnets"Synthetic Metals. (印刷中). (2001)

[Publications] Nobuyuki Oda et al.: "Highly symmetric high-spin oligonitrenes ; Molecular design for super high-spin systems with robust π-spin polarization"Synthetic Metals. (印刷中). (2001)

[Publications] Kozo Fukui et al.: "The first non-kekule polynuclear aromatic high-spin hydrocarbon : Generation of a triangulene derivative and band structure calculation of triangulene-based high-spin hydrocarbons"Synthetic Metals. (印刷中). (2001)

[Publications] Kazunobu Sato et al.: "Electronic and molecular structures of dendrimeric high-spin polycarbenes as studied by CW and pulsed ESR-based electron spin transient nutation spectroscopy"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

[Publications] Daisuke Shiomi et al.: "Organic molecule-based ferrimagnetism : Magnetic properties of a model compound and numerical calculations of a model spin Hamiltonian"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

[Publications] Suguru Maki et al.: "Hydrogen-bonded open-shell molecules : Synthesis and physical properties of the oxophenalenoxyl-based radical with hydroxyl group"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

[Publications] Nobuyuki Oda et al.: "Molecular and electronic spin structures of high-spin polyphenylene-based oligonitrenes with high symmetry : A semiempirical approach to fine-structure tensors"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

[Publications] Koya Tanaka et al.: "Extremely π-delocalized nature of dianthrylcarbene-based high-spin systems as studied by CW and pulsed 2-D electron-spin transient nutation spectroscopy"Molecular Crystals and Liquid Crystals. (印刷中). (2001)

工位武治大阪市立大学, 理学部, 教授 (10117955)