Manganese–gold–manganese complex with vinylidene and acetylide units

Abstract

A series of reactions of Cp(CO)₂MnCCHPh with different gold(I) complexes of [Au–CC–R]_n (R = 4-C₅H₄N, C₆H₅) and (tht)AuCl yielded one novel trinuclear MnAuMn cluster. The structure of this cluster can be rationalized as being formed of a vinylidene Mn–Au binuclear and Mn–acetylide fragments, and the binding between those is achieved mainly through the sharing of the electron pair of the single Mn–C σ-bond of an acetylide unit with the gold center.