Metallasilatrailes: Palladium(II) and Platinum(II) as lone-pair donors to Silicon(IV)

Abstract

(Figure Presented) Caught by the octopus: The first structurally characterized metallasilatranes exhibit strong, formally dative Pd->Si and Pt→ bonds (see picture; C gray, N blue, Si red, S yellow, Cl green, Pt black). The Si atoms are hexacoordinate, and the transition-metal (TM) atom is a lone-pair donor. Short TM-Si separations, pronounced upfield 29Si NMR signals, and strong Si-Pt coupling show the interaction between the TM atom and a maingroup element with an octet shell. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.