Reactions of alkynes with bridging alkylidyne ligands in metal complexes: X-ray crystal structures of [FeW{µ2-C(C6H4Me-4)·C(Me)·C(Me)}(CO)5(η-C5H5)] and [Fe2W(µ3-CC6H4Me-4)(µ2-Me3SiC2SiMe3)(µ-CO)(CO)6(η-C5H5)]
Abstract
Carbon–carbon bond formation via reactions of alkynes with di- or tri-metal complexes haing bridging tolylidyne ligands is described, and the structures of the complexes [FeW{µ2-C(C6H4Me-4)C(Me)C(Me)}(CO)5(η-C5H5)] and [Fe2W{µ2-CC6H4Me-4(µ-Me3SiC2SiMe3)(µ-CO)-(CO)6(η-C5H5)] are established by X-ray diffraction studies.