Preparation, Crystal Structure, and Solid State Properties of Highly Conductive (Phthalocyaninato)platinum Radical Salts: PtPc(ClO4)0.5and PtPc(AsF6)x

作者: Hideo Yamakado , Kyuya Yakushi , Nobuhiro Kosugi , Haruo Kuroda , Atsushi Kawamoto

DOI: 10.1246/BCSJ.62.2267

关键词: X-ray photoelectron spectroscopyTetragonal crystal systemCrystallographyChemistryLattice constantStereochemistryMetalPlatinumPartial oxidationElectrochemistryCrystal structureGeneral chemistry

摘要: New conducting salts of (phthalocyaninato)platinum (PtPc), PtPc(ClO4)0.5 and PtPc(AsF6)x, were prepared by electrochemical oxidation. A crystal belongs to a tetragonal system with space group P4⁄mcc, the lattice constants being a=14.062(1) A, c=6.510(1) Z=2. They are metallic at least down 120 K, room-temperature conductivity σ=102–103 S cm−1. XPS indicates that conduction pathway is located mainly ligand chain due partial oxidation ligand-centered HOMO. ESR experiments have also strongly supported this conclusion. The bandwidth band has been estimated be 1.2 eV from plasma frequency, hωp=0.87 eV, which obtained polarized reflectance spectrum.

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