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

    Fingerprint

    Schiff Bases
    Stoichiometry
    Vanadium
    imines
    hydroxides
    Propylene
    Hydrolysis
    Ligands
    Single crystals
    X ray diffraction
    Oxidation
    ligands
    oxidation
    propylene
    X-Ray Diffraction
    vanadium
    attack
    hydrolysis
    stoichiometry
    reactivity

    Keywords

    • Crystal structures
    • Oxovanadium hydroxylate
    • Schiff base ligands

    ASJC Scopus subject areas

    • Biochemistry
    • Inorganic Chemistry
    • Physical and Theoretical Chemistry
    • Materials Chemistry

    Cite this

    Oxovanadium(V) hydroxide with a tetradentate Schiff base ligand resulting from oxidation of oxovanadium(IV) with O2 . / Oyaizu, Kenichi; Tsuchida, Eishun.

    In: Inorganica Chimica Acta, Vol. 353, 08.09.2003, p. 332-335.

    Research output: Contribution to journalArticle

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    AU - Oyaizu, Kenichi

    AU - Tsuchida, Eishun

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    N2 - 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.

    AB - 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.

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    KW - Schiff base ligands

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