Crystal structure of tris(2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl-κP)-μ-oxoethenylidene-triangulo-trigold(I) bis(trifluoromethanesulfonyl)imide

Abstract

The title ketenylidene, [Au3(C2O)(C26H35O2P)3](C2F6NO4S2), was obtained upon exposure of [2-(dicyclohexylphosphino)-2′,6′-dimethoxy-1,1′-biphenyl]gold(I) bis(trifluoromethanesulfonyl)imide to acetic anhydride at elevated temperature. The ketenylidene bridge caps the tri-gold cluster. The title compound has provided crystals that upon analysis represent the first tri-gold ketenylidene with atomic distances indicative of bonding interaction between the gold atoms.