A new class of hydride-bridged platinum complex with application as hydrosilylation catalysts; molecular and X-ray crystal structure of trans-di-µ-hydrido-bis(tricyclohexylphosphine)bis(triethylsilyl)diplatinum(Pt–Pt)

Abstract

The reaction of [Pt(C₂H₄)₂(PCy₃)](Cy = cyclo-hexyl) with H₂ or R₃MH (M = Si, Ge; R = alkyl, aryl, alkoxy, Cl) affords, respectively, the hydride bridged dinuclear species [PtH(µ-H)(PCy₃)]₂ and [PtMR₃(µ-H)-(PCy₃)]₂; the triethylsilyl complex, which along with the other group 4a species catalyses the addition of R₃MH to olefins and acetylenes, was identified structurally by single crystal X-ray crystallography.