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Reactivity of Bis(μ-hydroxo) Divanadium Site in γ-H2SiV2W10O404 with Hydroxo Compounds.
- Source :
-
Inorganic Chemistry . 11/28/2005, Vol. 44 Issue 24, p9068-9075. 8p. 4 Diagrams, 2 Charts. - Publication Year :
- 2005
-
Abstract
- The reactivity of divanadium-substituted silicotungstate, γ-H2SiV2W10O404- (I), with hydroxo compounds of alcohols, carboxylic acids, and water is reported. The reaction of the bis(μ-hydroxo) divanadium site in I with primary alcohols and formic acid smoothly proceeds to form corresponding monoesters and monoformate, respectively, and the crystal structures of the monomethyl and monoethyl esters and the monoformate of I are determined. The oxygen exchange between the hydroxo group and water proceeds easily. On the other hand, bulky compounds of 2-propanol, tert-butyl alcohol, and acetic acid hardly react with the bis(μ-hydroxo) divanadium site (equilibrium constant « 0.01) because of the steric crowding between the methyl groups and the polyoxometalate framework. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00201669
- Volume :
- 44
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 19236727
- Full Text :
- https://doi.org/10.1021/ic051163x