Electron transfer in solutions of tungstovanadophosphoric heteropoly compounds

Redox properties of some isomers of tungstovanadophosphoric heteropoly anions have been studied. Rate constants of electron transfer from -1, 2, 3-PW₉V₂^VV^IVO₄₀^7– to PW₁₁V^VO₄₀^4– (k=1.1±0.2)×10² dm³/mol s) and from PW₁₀V^VV^ivO₄₀^6– to -1,2,3-PW₉V₃^VO₄₀^6– (k=1.4±0.2)×10² dm³/mol s) have been measured in 30% CH₃COOH at pH 3 and 20°C.

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- . PW₁₁V^VO₄₀^4– -1,2,3-PW₉V₂^VV^ivO₄₀^7– (k=(1,1±0,2)·10^{2 3}/·), -1,2,3-PW₉V₃^VO₄₀^6– PW₁₀V^vV^ivO₄₀^6– (k=(1,4±0,2)·10^{2 3}/·) pH=3 30%- CH₃COOH 20°C.