Synthesis, Molecular constitution and Chemical Properties of New Vinylidene Complexes with the Re-M bonds (M = Cu, Fe)
The additions of the Cu- and Fe-containing unsaturated fragments to the vinylidene complex Cp(CO)2Re=C=CHPh (1) afforded new binuclear complexes [Cp(CO)2ReCu(-C=CHPh)- (-Cl)]2 (2) and Cp(CO)2ReFe(-C=CHPh)(CO)4 (3). Molecular constitution of the compounds 2 and 3 were proposed from IR and NMR spectroscopy data and confirmed the presence of the -C=CHPh ligand bridging the Re-Cu and Re-Fe bonds, correspondingly. The chemical behavior of complex 2 towards action of PPh3 and Fe2(CO)9 has been investigated. The results obtained were compared with data for relative manganese complexes previously studied.