Heteropolytungstates containing cobalt(II) or cobalt(III).

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概要

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• The reactions of tungstophosphate with cobalt ion and the properties of heteropolytungstates containing cobalt have been investigated. Unsaturated heteropolyanion PW<SUB>11</SUB>O<SUB>39</SUB><SUP>7−</SUP> produced by the partial degradation of the parent 12-tungstophosphoric acid reacts with cobalt ion to give 11-tungstocobaltophosphate PCoW<SUB>11</SUB>O<SUB>40</SUB>H<SUB>2</SUB><SUP>5−</SUP>. Discussion is given on the presence of cobalt in the heteropolyanion and on the above reaction. Both 12-tungstocobaltate-(II) and -(III) are very resistant to acid, but 11-tungstocobaltophosphates lose cobalt ion in strongly acidic solutions to give the parent 12-acid. Some aspects of the spectra of the heteropolytungstates, in which cobalt(II) and cobalt(III), respectively, are present in the specific site, are discussed.

• 公益社団法人 日本化学会の論文

著者

• Imanaga Hiroto

  Faculty of Technology, Kanazawa University

• Komura Akitoshi

  Faculty of Technology, Kanazawa University

• Hayashi Mutsuo

  Faculty of Technology, Kanazawa University

関連論文

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• Light-induced redox characteristics of (tetrakis(4-methylpyridyl)-porphyrinato)manganese(III).
• Heteropolytungstates containing cobalt(II) or cobalt(III).
• Reactions of the di-.MU.-oxo-bis(aquaoxalatooxomolybdate(V)) ion.

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