Synthesis and structure of the dinuclear chloro-rhodium π-complexes with vinylsilanes

Reaction of the Cramerʹs complex [{Rh(C2H4)2(μ-Cl)}2] with the appropriate vinylsilane molecules yields, by displacement of the ethylene ligands, the complexes [{Rh(η2-CH2CHSiR3)2(μ-Cl)}2] (where R3=Me3 (1), Me2Ph (2), MePh2 (3), Ph3 (4), Me2(OSiMe3) (5)). The structures of 1, 2 and 3 complexes have been determined crystalographically. There are the first crystal structures of dinuclear rhodium(I) complexes with monovinylsilanes. All complexes have been characterised by multinuclear NMR spectroscopy.