Dimeric platinum–stannylene complexes by twofold ligand transfer from an NHC adduct to an organotin(ii) hydride

Abstract

Upon ligand transfer of hydrides and NHC a dimeric formal Pt(I)–Sn(I) (2) complex was obtained from a 1 : 1 reaction of Pt(cod)₂ (cod = 1,5-cyclooctadiene) and the NHC adduct to a bulky terphenyltin(II) hydride Ar*SnH(NHC) (1) [NHC = 1,3,4,5-tetramethylimidazol-2-ylidene, Ar* = 2,6-(2,4,6-triisopropylphenyl)C₆H₃]. The bridging stannylene Sn atoms each reveal an individual coordinative interaction with the platinum atoms and the hydrides with ‘non-classic’ Pt–H–Sn bonds.