Syntheses and properties of a series of oxo-centered triruthenium complexes with thiocyanate and nitrite as terminal ligand

Hiroyoshi Ohtsu, Naoki Oka, Tadashi Yamaguchi

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Six new oxo-centered triruthenium complexes with NCS - or NO 2 - as a terminal ligand [Ru 3O(CH 3CO 2) 6(NCS)(L) 2] {L = 4-dimethylaminopyridine (dmap) (1); L = pyridine (py) (2)}, [PPh 4] 2[Ru 3O(CH 3CO 2) 6(NCS) 3] (3), [PPh 4] 2[Ru 3O(CH 3CO 2) 6(CO)(NCS) 2] (4), and [Ru 3O(CH 3CO 2) 6(NO 2)(L) 2] {L = dmap (5); L = py (6)} were prepared. The thiocyanate is coordinated through N atom for all NCS - complexes. While dmap complex 5 was obtained as single isomer with N-coordinate nitrite, py complex 6 was obtained as a mixture of two isomers involving coordination mode of nitrite. The linkage isomerization is too fast to allow separation of these isomers and it was confirmed by saturation transfer technique on 1H NMR. These compounds show reversible redox behavior and the redox potentials suggest that these anionic ligands are slightly electron donating than pyridine derivatives. Crystal structures of [Ru 3O(CH 3CO 2) 6(NCS)(C 5H 5N) 2] ·2CH 2Cl 2 were determined by X-ray crystallography. Although the complex has mixed terminal ligand, the Ru 3O core is almost equilateral.

    Original languageEnglish
    Pages (from-to)1-6
    Number of pages6
    JournalInorganica Chimica Acta
    Volume383
    DOIs
    Publication statusPublished - 2012 Mar 30

    Fingerprint

    nitrites
    Nitrites
    Pyridine
    Ligands
    Isomers
    methylidyne
    ligands
    pyridines
    synthesis
    isomers
    X ray crystallography
    Carbon Monoxide
    Isomerization
    Crystal structure
    Nuclear magnetic resonance
    Derivatives
    linkages
    Atoms
    isomerization
    crystallography

    Keywords

    • Cluster compounds
    • Linkage isomer
    • Ruthenium complexes

    ASJC Scopus subject areas

    • Inorganic Chemistry
    • Physical and Theoretical Chemistry
    • Materials Chemistry

    Cite this

    Syntheses and properties of a series of oxo-centered triruthenium complexes with thiocyanate and nitrite as terminal ligand. / Ohtsu, Hiroyoshi; Oka, Naoki; Yamaguchi, Tadashi.

    In: Inorganica Chimica Acta, Vol. 383, 30.03.2012, p. 1-6.

    Research output: Contribution to journalArticle

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