Chemistry of vinylidene complexes. XXI. Synthesis, spectroscopic and structural study of the RePt and MnPt μ–vinylidene complexes.

Reaction of Cp(CO)2Re=C=CHPh (1) with Pt(PPh3)4 and subsequent treatment of Cp(CO)2RePt(μ–C=CHPh)(PPh3)2 (2) with diphosphines P–P = dppe, dppp afforded new complexes Cp(CO)2RePt(μ–CCHPh)(P–P) (4, 5). The structures of Cp(CO)2RePt(μ–C=CHPh)(dppp) (5) and Cp(CO)2MnPt(μ–C=CHPh)(dppp) (10) have been determined by single crystal XRD. The influence of the nature of M = Re, Mn and L2 = (PPh3)2, dppm, dppe, dppp at the Pt atom on the structural, IR and 1H, 13C and 31P NMR spectroscopic characteristics of complexes Cp(CO)2MPt(μ–C=CHPh)(L2) (2–5, 7–10) is considered. [ABSTRACT FROM AUTHOR]