Preparation, crystal structure, and solid state properties of highly conductive (phthalocyaninato) platinum radical salts: PtPc(ClO4)0.5 and PtPc(AsF6)x.
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概要
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New conducting salts of (phthalocyaninato)platinum (PtPc), PtPc(ClO<SUB>4</SUB>)<SUB>0.5</SUB> and PtPc(AsF<SUB>6</SUB>)<I><SUB>x</SUB></I>, were prepared by electrochemical oxidation. A crystal of PtPc(ClO<SUB>4</SUB>)<SUB>0.5</SUB> belongs to a tetragonal system with a space group of <I>P</I>4⁄<I>mcc</I>, the lattice constants being <I>a</I>=14.062(1) Å, <I>c</I>=6.510(1) Å, and <I>Z</I>=2. They are metallic at least down to 120 K, the room-temperature conductivity being σ=10<SUP>2</SUP>–10<SUP>3</SUP> S cm<SUP>−1</SUP>. XPS indicates that the conduction pathway is located mainly at the ligand chain due to a partial oxidation of the ligand-centered HOMO. ESR experiments have also strongly supported this conclusion. The bandwidth of the ligand-centered conduction band has been estimated to be 1.2 eV from the plasma frequency, hω<SUB>p</SUB>=0.87 eV, which is obtained by the polarized reflectance spectrum.
- 公益社団法人 日本化学会の論文
著者
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Kosugi Nobuhiro
Department Of Chemistry University Of Tokyo
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Yakushi Kyuya
Department Of Chemistry Faculty Of Science University Of Tokyo
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Sugano Tadashi
Institute For Solid State Physics University Of Tokyo
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Tanaka Jiro
Department Of Biomaterials Okayama University Graduate School Of Medicine Dentistry And Pharmaceutic
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Kuroda Haruo
Department Of Chemistry Faculty Of Science The University Of Tokyo
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Yamakado Hideo
Department Of Chemistry Graduate School Of Science Tohoku University
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Kinoshita Minoru
Institute For Solid State Physics The University Of Tokyo
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Hino Shojun
Department Of Applied Chemistry Graduate School Of Science And Engineering Ehime University
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KINOSHITA Minoru
Institute for Solid State Physics, The University of Tokyo
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Kawamoto Atsushi
Department of Biology, Faculty of Science, Chiba University
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Kosugi Nobuhiro
Department of Chemistry, Faculty of Science, The University of Tokyo
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Yamakado Hideo
Department of Chemistry, Faculty of Science, the University of Tokyo
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Kuroda Haruo
Department of Chemistry and Research Center for Spectrochemistry, Faculty of Science, The University of Tokyo
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