Derivatives of π-cyclopentadienyl complexes of Group VI metals with metal–metal bonds to copper and gold

Abstract

Stable compounds containing metal-to-metal bonds between the Group VI metals Cr, Mo, and W and copper and gold have been prepared. Their properties are discussed. They have the general formulae (Triarsine)-Cu–M(CO)₃(π-C₅H₅) and R₃P→Au–M(CO)₃(π-C₅H₅), where (π-C₅H₅) is the cyclopentadienyl group. The R₃P groups employed were PPh₃, P(OPh)₃, and P(cyclohexyl)₃.