2000 Fiscal Year Annual Research Report

ポルフィリンを用いた分子磁石および光エネルギー変換機能の発現

Research Project

Project/Area Number	12440199
Research Institution	Osaka University
Principal Investigator	坂田祥光大阪大学, 産業科学研究所, 教授 (60029874)
Co-Investigator(Kenkyū-buntansha)	高良聡大阪大学, 産業科学研究所, 助手 (40324850) 杉浦健一大阪大学, 産業科学研究所, 助手 (60252714) 兼田隆弘大阪大学, 産業科学研究所, 助教授 (50029899)
Keywords	ポルフィリン / シクロデキストリン / 分子磁性 / 超分子 / 自己集合 / 光電変換 / 電荷移動型錯体
Research Abstract	1.光合成におけるもっとも基本的かつ重要な過程、すなわち電子移動を制御している因子を解明することを目的として種々のモデル系を設定し、それらの合成、キャラクタリゼーションに成功した。さらに、金表面上に作成したモデルの薄膜(単分子膜)が光電変換機能を持つことを明らかにした。 2.マンガンポルフィリンと種々のアクセプター分子(TCNQ,TCNEなど)から形成される電荷移動型錯体を系統的に合成することに成功し、それらの構造(ポルフィリン置換基の立体的効果など)、電子状態(ポルフィリン中心金属の変更、アクセプター分子のパイ電子系の拡張など)が及ぼす磁性への影響を検討した。その結果、電荷移動型錯体を用いる分子磁性体設計において大きな指針を得ることができた。 3.ゲスト部位を同一分子内に有する完全メチル化シクロデキストリン(CD)の自己集合過程において、特にα-CD-アゾベンゼン連結系を用い、差し違い型2量体、環状4量体の構造を明らかにした。これは、溶液中におけるCD誘導体の自己組織化構造を明らかにした初めての例である。これらの知見は、疎水場における分子(ゲスト)の特質を明らかにする上で非常に有益であり、今後、CD内疎水場を利用した光誘起電子移動を構築する上で大きな指針となりうる。

Research Products

(15 results)

All Other

All Publications (15 results)

[Publications] Daigo Hirayama: "Preparation and Photoelectrochemical Properties of Gold Electrodes Modified with [60] Fullerene-Linked Oligothiophenes"Chemistry Letters. 10. 570-571 (2000)
[Publications] Ken-ichi Sugiura: "Structure and magnetic properties of meso-tetrakis (2,4,6-trimethylphenyl) porphyrinatomanganese (III) 7,7,8,8-tetracyano 2.5-dimethyl-p-quinodimthanide with a 2.3 KT. The first example of cis coordination of a tetracyano-p-quinodimethanide"Journal of Materials Chemistry. 959-964 (2000)
[Publications] Durrell K.Rittenberg: "Products from the Reaction of meso-Tetrakis (4-halophenyl) porphynatomanganese(II) and Hexacyanobutadiene (HCBD) : Formation of π-|HCBD|_2^2 Dimers.μ-|HCBD|.σ-|HCBD|,and |C_1(CN)_5O"Chemistry, A European Journal. 6巻10号. 1811-1819 (2000)
[Publications] Nikolay V.Tkachenko: "Near infra-red emission of charge-transfer complexes of porphyrin-fullerene films"Chemical Physics Letters. 326. 344-350 (2000)
[Publications] Alagar Srinivasan: "Core modified meso-aryl supphyrins and rubyrins : structural and anion receptor properties"Journal of Chemical Society, Perkin Transaction. 2. 1788-1793 (2000)
[Publications] Ken-ichi Sugiura: "Ferrimagnetic ordering of a methylthio-substituted planar porphyrin based electron transfer salt. octakis(2,3,7,8,12,13,17,18-methylthio) porphyrinatomanganese (III) tetracyanoethanide"Journal of Materials Chemistry. 10. 2507-2514 (2000)
[Publications] Durrel K.Rittenberg: "Large Coercivity and High Remanent Magnetization Organic-Based Magnets"Advanced Materials. 12巻・2号. 126-130 (2000)
[Publications] Hiroshi Imahori: "Chain Length Effect on the Structure and Photoelectrochemical Properties of Self-Assembled Monolayers of Porphyrins on Gold Electrodes"The Journal of Physical Chemistry B. 104巻・6号. 1253-1260 (2000)
[Publications] Ken-ichi Sugiura: "Synthesis, properties, molecular structure and electron transfer salts of 13,13,14,14-tetracyano-1,6- and -1,8-pyrenoquinodimethanes (1,6-TCNP and 1,8-TCNP)"Journal of Materials Chemistry. 10. 315-319 (2000)
[Publications] Hiroshi Imahori: "Vectorial Multistep Electron Transfer at the Gold Electrodes Modified with Self-Assembled Monolayers of Ferrocene-Porphyrin-Fullerene Triads"The Journal of Physical Chemistry B. 104巻・9号. 2099-2108 (2000)
[Publications] Hirohito Tsue: "Large Acceleration Effect of Photoinduced Electron Transfer in Porphyrin-Quinone Dyads with a Rigid Spacer Involving a Dihalosubstituted Three-Membered Ring"Journal of the American Chemical Society. 112巻・10号. 2279-2288 (2000)
[Publications] Hitoshi Onodera: "Photophysical and Photochemical Behavior of Triplet Excited State of C_<60> in Unimer Micelle"Chemistry Letters. 426-427 (2000)
[Publications] Tastuhiko Fujimoto: "The first Janus [2] rotaxane"Chemical Communications. 2143-2144 (2000)
[Publications] Tatsuhiko Fujimoto: "The first lipophilic face-to-face dimmers of permethylated α-cyclodextrin-azobenzene dyads through a p-xylylene spacer"Chemistry Letters. 564-565 (2000)
[Publications] Tatsuhiko Fujimoto: "The first competitive formation of [4] and [2] supercyclodextrins by self-association of an α-cyclodextrin bearing bisazophenol group"Chemistry Letters. 764-765 (2000)

2000 Fiscal Year Annual Research Report

ポルフィリンを用いた分子磁石および光エネルギー変換機能の発現

Principal Investigator

坂田 祥光 大阪大学, 産業科学研究所, 教授 (60029874)

Research Products

[Publications] Daigo Hirayama: "Preparation and Photoelectrochemical Properties of Gold Electrodes Modified with [60] Fullerene-Linked Oligothiophenes"Chemistry Letters. 10. 570-571 (2000)

[Publications] Durrell K.Rittenberg: "Products from the Reaction of meso-Tetrakis (4-halophenyl) porphynatomanganese(II) and Hexacyanobutadiene (HCBD) : Formation of π-|HCBD|_2^2 Dimers.μ-|HCBD|.σ-|HCBD|,and |C_1(CN)_5O"Chemistry, A European Journal. 6巻10号. 1811-1819 (2000)

[Publications] Nikolay V.Tkachenko: "Near infra-red emission of charge-transfer complexes of porphyrin-fullerene films"Chemical Physics Letters. 326. 344-350 (2000)

[Publications] Alagar Srinivasan: "Core modified meso-aryl supphyrins and rubyrins : structural and anion receptor properties"Journal of Chemical Society, Perkin Transaction. 2. 1788-1793 (2000)

[Publications] Ken-ichi Sugiura: "Ferrimagnetic ordering of a methylthio-substituted planar porphyrin based electron transfer salt. octakis(2,3,7,8,12,13,17,18-methylthio) porphyrinatomanganese (III) tetracyanoethanide"Journal of Materials Chemistry. 10. 2507-2514 (2000)

[Publications] Durrel K.Rittenberg: "Large Coercivity and High Remanent Magnetization Organic-Based Magnets"Advanced Materials. 12巻・2号. 126-130 (2000)

[Publications] Hiroshi Imahori: "Chain Length Effect on the Structure and Photoelectrochemical Properties of Self-Assembled Monolayers of Porphyrins on Gold Electrodes"The Journal of Physical Chemistry B. 104巻・6号. 1253-1260 (2000)

[Publications] Ken-ichi Sugiura: "Synthesis, properties, molecular structure and electron transfer salts of 13,13,14,14-tetracyano-1,6- and -1,8-pyrenoquinodimethanes (1,6-TCNP and 1,8-TCNP)"Journal of Materials Chemistry. 10. 315-319 (2000)

[Publications] Hiroshi Imahori: "Vectorial Multistep Electron Transfer at the Gold Electrodes Modified with Self-Assembled Monolayers of Ferrocene-Porphyrin-Fullerene Triads"The Journal of Physical Chemistry B. 104巻・9号. 2099-2108 (2000)

[Publications] Hirohito Tsue: "Large Acceleration Effect of Photoinduced Electron Transfer in Porphyrin-Quinone Dyads with a Rigid Spacer Involving a Dihalosubstituted Three-Membered Ring"Journal of the American Chemical Society. 112巻・10号. 2279-2288 (2000)

[Publications] Hitoshi Onodera: "Photophysical and Photochemical Behavior of Triplet Excited State of C_<60> in Unimer Micelle"Chemistry Letters. 426-427 (2000)

[Publications] Tastuhiko Fujimoto: "The first Janus [2] rotaxane"Chemical Communications. 2143-2144 (2000)

[Publications] Tatsuhiko Fujimoto: "The first lipophilic face-to-face dimmers of permethylated α-cyclodextrin-azobenzene dyads through a p-xylylene spacer"Chemistry Letters. 564-565 (2000)

[Publications] Tatsuhiko Fujimoto: "The first competitive formation of [4] and [2] supercyclodextrins by self-association of an α-cyclodextrin bearing bisazophenol group"Chemistry Letters. 764-765 (2000)

坂田祥光大阪大学, 産業科学研究所, 教授 (60029874)