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

Abstract

Reaction of Cp(CO)2ReCCHPh (1) with Pt(PPh3)4 and subsequent treatment of Cp(CO)2RePt(μ–CCHPh)(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–CCHPh)(dppp) (5) and Cp(CO)2MnPt(μ–CCHPh)(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–CCHPh)(L2) (2–5, 7–10) is considered.