title: Organolutetium vinyl and tuck-over complexes via C-H bond activation.
abstract: The vinyl C-H bond of tetramethylfulvene is activated in the presence of [(C5Me5)2LuH]x, 1, to form a vinyl organolutetium complex, (C5Me5)2Lu(CH=C5Me4), 2. Also formed in the reaction is the "tuck-over" complex, (C5Me5)2Lu(mu-H)(mu-eta1:eta5-CH2C5Me4)Lu(C5Me5), 3, containing a (CH2C5Me4)2- moiety long postulated to exist in organolutetium chemistry but never crystallographically characterized. Evidence for these C-H bond activations by a "(C5Me5)3Lu" intermediate, 4, is presented. Complex 3 can also be made in high yield by thermolysis of 1. Under H2, 1 catalytically hydrogenates TMF to C5Me5H.
authors.affiliation: Department of Chemistry, University of California, Irvine, California 92697-2025, USA. wevans@uci.edu
authors.forename: William J
authors.initials: WJ
authors.lastname: Evans
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Champagne
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Ziller