Chiral metal complexes. 1. Photochemical inversion in ternary Ru(II) complexes of diimines and L-tryptophane

Robert S. Vagg, Peter A. Williams*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    39 Citations (Scopus)

    Abstract

    The compounds Δ,Λ-[Ru(phen)2(L-trp)] ClO4· 3H20 and Δ,Λ-[Ru(bipy)2(L-trp)] ClO4·3H20 (where L-trp is the L-tryptophane anion) have been isolated and the complex cations resolved into their diastereoisomeric forms using cation-exchange chromatography. Circular dichroism studies show the Δ-isomers to spontaneously invert into the Λ-forms in the presence of light in aqueous solution. These novel inversion reactions are the first reported in which substitution in the coordination sphere does not take place. The equilibrium constants for the reaction Δ-[Ru(diimine)2(L-trp)]+ aq ⇌ Λ-[Ru(diimine)2(L-trp)]+ aq are 4.0 and 2.1 for the phen and bipy compounds respectively.

    Original languageEnglish
    Pages (from-to)61-65
    Number of pages5
    JournalInorganica Chimica Acta
    Volume51
    Issue numberC
    DOIs
    Publication statusPublished - 1981

    Fingerprint

    Dive into the research topics of 'Chiral metal complexes. 1. Photochemical inversion in ternary Ru(II) complexes of diimines and L-tryptophane'. Together they form a unique fingerprint.

    Cite this