Platinum Eta2-Disilene Complexes: Syntheses, Reactivity, and Structures

摘要

Olefin complexes of metals date back to the historic preparation of Zeise's saltin 1827. In recent years several complexes of diphosphenes, diarsenes, and distibines with transition metals have been described, and the coordination chemistry of these unsaturated ligands is now fairly well established. Reactive organosilicon species can sometimes be stabilized by coordination to a transition metal. Examples are the adduct/donar stabilized silylene complexes of ruthenium, iron, and chromium and the recent report of stable silene complexes of ruthenium. In addition, Tessier-Youngs and co-workers have prepared several Pt2Si2 ring compounds whose structural features have been discussed in terms of a bonding model involving the coordination of a planar R2SiSi R2 fragment to two metal moieties. (jes)