The complexes ML3 (M = Ni, Pd, Pt; L = PPh3, P(p-C6H4CH3)3) react with carbonyl sulfide to afford M(CO)L3, M(CO)2L2, M(η2-COS)L2, and M(COS2)L2 complexes, depending upon M, L, and reaction conditions. These reactions are contrasted with those involving CS2 in place of COS. A mechanism for the reductive disproportionation of COS by Pt(PPh3)4 involving a metal-sulfide intermediate is proposed. The dioxygen complexes Pt(O2)L2 and Pd(O2)L2 react with carbonyl sulfide to afford metal thiocarbonates, Pt(CO2S)L2 and Pd(CO2S)L2, in which the thiocarbonate ligand is asymmetrically bound to the metal.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry