Reactivity of bis(μ-hydroxo) divanadium site in γ-H 2SiV2W10O404- with hydroxo compounds

Yoshinao Nakagawa, Kazuhiro Uehara, Noritaka Mizuno

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

The reactivity of divanadium-substituted silicotungstate, γ-H 2SiV2W10O404- (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.

Original languageEnglish
Pages (from-to)9068-9075
Number of pages8
JournalInorganic chemistry
Volume44
Issue number24
DOIs
Publication statusPublished - 2005 Nov 28
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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