WCl(η2-C2Ph2)(η6- C6Ph6H): A compound containing a metallacycloheptatriene unitfrom trimerization of diphenylacetylene with W(NMe3)(η2-C2Ph2)3
Journal
Organometallics
Journal Volume
21
Journal Issue
14
Pages
3058-3061
Date Issued
2002
Author(s)
Abstract
W(NCMe)(2-C2Ph2)3 (1) has been previously synthesized by the reaction of W(CO)(η2-C2Ph2)3 with Me3NO in acetonitrile, while the same treatment in THF leads to the trimethylamine complex W(NMe3)(η2-C2Ph2)3 (2). Compound 2 is reactive. Stirring a mixture of 2 and diphenylacetylene in dichloromethane at room temperature affords WCl(η2-C2Ph2)(η6C6 Ph6H) (3), which apparently arises from trimerization of the alkyne ligands concomitant with solvent activation. The structures of 1-3 have been determined by an X-ray diffraction study. A carbene W=C double bond is evidenced in 3.
SDGs
Type
journal article