Methylene group transfer to carbon–metal multiple bonds: crystal structures of [TiW{µ-C(C6H4Me-4)CH2}(µ-CO)(CO)(η-C5H5)3] and [PtW{µ-C(C6H4Me-4)CH2}(CO)2(PMe3)2(η-C5H5)]

Abstract

In toluene–tetrahydrofuran, the reagent [(η-C₅H₅)₂[graphic omitted]H₂] reacts with [W(CR)(CO)₂(η-C₅H₅)] or [TiW(µ-CR)(µ-CO)(CO)(η-C₅H₅)₃](R = C₆H₄Me-4) to give [TiW(µ-CRCH₂)(µ-CO)(CO)(η-C₅H₅)₃], and with [PtW(µ-CR)(CO)₂(PMe₃)₂(η-C₅H₅)] to yield [PtW(µ-CRCH₂)(CO)₂(PMe₃)₂(η-C₅H₅)]; the latter and [TiW(µ-CRCH₂)(µ-CO)(CO)(η-C₅H₅)₃] have been structurally characterised by X-ray diffraction.