Synthesis and characterisation of adducts of [Pt2(μ-S)2(PPh3)4] with organo-palladium and platinum-hydride substrates

Abstract

The reactions of [Pt2(μ-S)2(PPh3) 4] towards a range of palladium(II) complexes containing organometallic ligands (cyclopalladated N-donor ligands, η3- allyl, phenyl) have been explored, leading to the formation of a series of cationic, trinuclear sulfido-bridged aggregates containing {Pt 2PdS2} cores. [Pt2(μ-S)2(PPh 3)4] also reacts with the platinum(II) hydride complex trans-[PtHCl(PPh3)2] giving the adduct [Pt 2(μ-S)2(PPh3)4PtH(PPh 3)]+. X-ray crystal structure determinations on the complexes [Pt2(μ-S)2(PPh3) 4PdPh(PPh3)]PF6 and [Pt2(μ-S) 2(PPh3)4PtH(PPh3)]PF6 are reported, and show the expected bis μ3-sulfido aggregates with three square-planar metal centres. © 2010 Elsevier B.V. All rights reserved.