Oxovanadium(V) hydroxide with a tetradentate Schiff base ligand resulting from oxidation of oxovanadium(IV) with O2

Kenichi Oyaizu, Eishun Tsuchida

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Unlike common oxovanadium(IV) complexes with tetradentate Schiff base ligands, [N,N′ -(2,2-dimethyl-1,3-propylene)bis(salicylideneiminato)]oxovanadium(IV) ([VO(salptn)]) was easily oxidized by dioxygen in aqueous CH3CN. The [VO(salptn)]-O2 stoichiometry was 4:1. This particular reactivity comes from the preference of [VO(salptn)] to be six-coordinate rather than five, that drives the formation of an O2-complex. The structure of the oxidized product, [VO(salptn)]OH, was characterized by single-crystal X-ray diffraction. The results are consistent with a mechanism involving an attack of O2 at the vanadium(IV) center, followed by the formation of the μ-dioxo dimmer as a transient species and the subsequent splitting of the O-O bond by hydrolysis to yield [VO(salptn)]OH.

Original languageEnglish
Pages (from-to)332-335
Number of pages4
JournalInorganica Chimica Acta
Volume353
DOIs
Publication statusPublished - 2003 Sep 8

Keywords

  • Crystal structures
  • Oxovanadium hydroxylate
  • Schiff base ligands

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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