Abstract
AbstractReaction of the triamidostannates(II) MeSi{SiMe2N(p‐tol)}3SnLi(OEt2) (1a) and MeSi{SiMe2N(3,5‐xyl)}3SnLi(OEt2) (1b) with 1/2 molar equiv. of [RhCl(diolefin)]2 (diolefin = COD, NBD) and phosphanes, phosphites or isonitriles (“L”) gave the square‐planar complexes [MeSi{SiMe2NAryl}3SnRh(L)(diolefin)] (Aryl = 3,5‐xyl, p‐tol) in which thestannates are directly bonded to rhodium through Rh–Sn bonds. In contrast, the analogous transformation of 1b with 1/2 equiv. of [RhCl(C2H4)2]2 and PiPr3 in toluene did not lead to a square‐planar bisethylene complex [MeSi{SiMe2N(3,5‐xyl)}3SnRh(C2H4)2(PiPr3)] but the brown 18e π‐arene complex [MeSi{SiMe2N(3,5‐xyl)}3SnRh(PiPr3)(η6‐toluene)] (6). Equilibria of the square planar diolefin complexes with π‐arene systems such as 6 were observed upon their dissolution in toluene.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
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