Electronic and steric properties of stable silylene ligands in metal(0) carbonyl complexes

Thomas A. Schmedake, University of Wisconsin-Madison
Michael Haaf, Elizabethtown College
Bryan J. Paradise, University of Wisconsin-Madison
Anthony J. Millevolte, University of Wisconsin-Eau Claire - Barron County
Douglas R. Powell, University of Wisconsin-Madison
Robert West, University of Wisconsin-Madison


A series of stable silylene-transition metal complexes have been synthesized by substitution of silylenes 1 and 2 for carbonyl ligands in simple metal carbonyl complexes: M(1) (CO) and M(2) (CO) (M=Cr, Mo, W), Fe(1)(CO) and Ru(1) (CO) . X-ray crystal structures are reported. Infrared and NMR spectroscopy were used to probe the electronic properties of stable silylene ligands. Based on these data, the stable silylene 1 behaves electronically very much like triaryl phosphines. © 2001 Elsevier Science B.V. 2 4 2 4 4 2 3