Ruthenium complexes with heteropoly anion PW{sub 11}O{sub 39}{sup 7-} and their redox properties
Journal Article
·
· Russian Chemical Bulletin
OSTI ID:223927
- G.K. Boreskov Inst. of Catalysis, Novosibirsk (Russian Federation)
A new heteropoly complex PW{sub 11}Ru{sup IV} and complexes of Ru{sup II}, Ru{sup III} and Ru{sup V} based thereon have been obtained. Using spectrophotometry the states of Ru{sup III} and Ru{sup IV} complexes in solution, the pH range of their stability, and the interaction of PW{sub 11}Ru{sup IV} with ClO{sub 4}{sup -}, SO{sub 4}{sup 2-}, Cl{sup -} ions have been studied. A conclusion has been thus made that the ruthenium ion in such a complex is not incorporated in the heteropolyanion lattice, but is attached only to its external oxygen atoms. Kinetics of oxidation of PW{sub 11}Ru{sup IV} and PW{sub 11}Ru{sup III} with potassium chlorate have been studied. The activation energy and pre-exponential factor have been found for the reaction. The possibility that ClO{sub 4}{sup -} and ClO{sub 3}{sup -} in aqueous solutions can be activated by PW{sub 11}Ru{sup II} with the former and by PW{sub 11}Ru{sup III} and PW{sub 11}Ru{sup IV} with the latter has been demonstrated.
- OSTI ID:
- 223927
- Journal Information:
- Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 8 Vol. 42; ISSN RCBUEY; ISSN 1066-5285
- Country of Publication:
- United States
- Language:
- English
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