A Symmetrically Bridging Triarylsilyl Ligand in a Dinuclear Rhodium Complex: Synthesis and Structure of [LRh(H)(µ-Cl)(µ-SiAr2 )(µ-SiAr3 )Rh(H)L] (Ar=Ph, p-FC6 H4 ; L=PiPr3 ).

Simply warming solutions of the dinuclear complexes 1 provides novel complexes 2 [Eq. (a); Ar = Ph, p-FC6 H4 ; L = PiPr3 ], which contain a bridging triarylsilyl ligand and show unusual thermal stability. Compounds with this type of symmetric structure are of interest as models of the transition state for the migration of tertiary silyl groups in a bimetallic framework. © 1998 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.