A stable thiolato–CuI–thiolato triple linkage that bridges two cobalt(iii) centres

Abstract

Treatment of Λ-fac-[Co(D-pen-N,S)₃]^3– (D-H₂pen = D-penicillamine) with Cu⁺ in water gave a stable Co^III₂Cu^I₃ complex, ΛΛ-[Co₂Cu₃(D-pen)₆]^3– ([1]^3–), having three thiolato–copper(I)–thiolato moieties that bridge two cobalt(III) centres. Complex [1]^3– was isolated as a coordination polymer of Na₃[1], which was converted to a complex salt of [Cr(H₂O)₆][1] by treatment with Cr(NO₃)₃.