SYNTHESES AND REACTIVITY OF ACETYLIDE-CONTAINING CLUSTERS OF GROUP-1B METALS - PREPARATION AND IDENTIFICATION OF THE NOVEL BIMETALLIC [AG6CU7(C2PH)14]- AND THE ANALOGOUS TRIMETALLIC [AUAG6CU6(C2PH)14]- CLUSTERS

The reaction of the linear complex [Ag(C2Ph)2]- and a mixture of [{Cu(C2Ph)}n] and [{Ag(C2Ph)}n] afforded the novel heteronuclear cluster [Ag6Cu7(C2Ph)14]- (1). The same cluster was obtained when [Cu(C2Ph)2]- or halide ions, X- (X = Cl, Br, I), were treated with a mixture of the same polymer complexes. The analogous trimetallic complex [AuAg6Cu6(C2Ph)14]- was the sole cluster obtained when [Au(C2Ph)2]- was employed in different mole ratios with the above mixture of polymers. Some structural data for the two complexes are discussed.