Intra- and inter-molecular stacking in tetracyanoethylene (tcne) complexes of platinum metal dithio acids: the structures and electrochemistry of [Os(S2PR2)2(PPh3)(tcne)](R = Me, Ph)

Abstract

The solid-state structure of [Os(S₂PR₂)₂(PPh₃)(tcne)](R = Me) shows intermolecular stacking of N-bound tetracyanoethylene (tcne) ligands, whereas for R = Ph intramolecular interaction of co-ordinated tcne and a Ph group of a S₂PPh₂^– moiety is observed; electrochemical reduction of [M(S₂PR₂)₂(PPh₃)(tcne)] affords the complex anions [M(S₂PR₂)₂(PPh₃)(tcne[graphic omitted])]^–(M = Ru, Os; R = Me, Ph, OEt).