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

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 {Pt2PdS2} cores. [Pt2(μ-S)2(PPh3)4] also reacts with the platinum(II) hydride complex trans-[PtHCl(PPh3)2] giving the adduct [Pt2(μ-S)2(PPh3)4PtH(PPh3)]+. 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.

Reactions of [Pt2(μ-S)2(PPh3)4] with a range of organo-palladium(II) substrates gave cationic, trinuclear adducts which retain the organo-ligand (various N,C-cyclopalladated ligands, η3-allyl and phenyl). The platinum(II)-hydride derivative [Pt2(μ-S)2(PPh3)4PtH(PPh3)]PF6 is also reported, together with X-ray structure determinations on the complexes [Pt2(μ-S)2(PPh3)4PdPh(PPh3)]PF6 and [Pt2(μ-S)2(PPh3)4PtH(PPh3)]PF6.Figure optionsDownload as PowerPoint slide