An EXAFS investigation of the coordination structure of copper(II) ions in aqueous Cu(ClO4)2 and methanolic CuCl2 solutions.
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概要
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The coordination structure of copper(II) ions in aqueous and methanolic solutions was investigated by means of EXAFS spectroscopy. The hexaaquacopper(II) complex in the aqueous Cu(ClO<SUB>4</SUB>)<SUB>2</SUB> solution had an elongated octahedral structure, with four equatorial distances of 2.00 Å and two axial distances of 2.28 Å. Scarcely no axial interaction has been seen in the radial-distribution curve after the Fourier transform of the EXAFS spectrum, for the real and imaginary parts of the Fourier transformed function for the axial interactions are diminished by the interference of those for the equatorial interactions. Two distances for the equatorial interactions of the mixed-ligand chlorocopper(II) complexes in the methanolic CuCl<SUB>2</SUB> solution were clearly resolvable in the radial-distribution curve; they were 2.00 Å and 2.22 Å for the Cu–O and Cu–Cl interactions respectively.
- 公益社団法人 日本化学会の論文
著者
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Wakita Hisanobu
Department Of Chemistry Faculty Of Science Fukuoka University
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Tajiri Yoshichika
Department of Chemistry, Faculty of Science, Fukuoka University
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