An X-ray diffraction study of the structures of the hexachloro- and hexabromoplatinate(IV) ions in aqueous solution.

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概要

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• The structures of the PtCl<SUB>6</SUB><SUP>2−</SUP> and PtBr<SUB>6</SUB><SUP>2−</SUP> complexes in aqueous solution were determined by means of X-ray diffraction measurements of concentrated solutions of hexachloro- and hexabromoplatinic acids. Analysis of X-ray scattering data showed that the PtCl<SUB>6</SUB><SUP>2−</SUP> and PtBr<SUB>6</SUB><SUP>2−</SUP> complexes have a regular octahedral symmetry. The interatomic distances within the complexes are: Pt–Cl, 2.33 Å; <I>cis</I>-Cl–Cl, 3.30 Å; trans-Cl–Cl, 4.66 Å; Pt–Br, 2.47 Å; <I>cis</I>-Br–Br, 3.50 Å; <I>trans</I>-Bv–Br, 4.94 Å. These distances are in good agreement with those reported in crystals of hexahalogenoplatinate(IV) compounds.

• 公益社団法人 日本化学会の論文

著者

• Akaishi Takeshi

  Laboratory of Solution Chemistry, Tokyo Institute of Technology

関連論文

• An X-ray diffraction study of the structures of the hexachloro- and hexabromoplatinate(IV) ions in aqueous solution.

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