[Cu6S17]2–, a novel binary discrete polynuclear CuI complex with several interesting structural features: the arrangement of the metal atoms and co-ordination of ligands

Abstract

The structure of [PPh₄]₂[Cu₆S₁₇], obtained from Cu(acac)₂(Hacac = acetylacetone) and PPh₄Br in an ethanol solution of polysulphide, contains an unusual arrangement of metal atoms (which can only approximately be described as two distorted Cu tetrahedral sharing one edge) and novel ligand co-ordination of polysulphide (S₄^2– and S₅^2–) ions.