Abstract
New aspects of chemistry and bonding have emerged from reactions of the anionic linear complexes [M(C
2Ph)
2]
− with metal phenylacetylide polymers [M(C
2Ph)]
n
(M=Cu, Ag, Au). The reactions did not stop at depolymerization, but were followed by ethynylation and condensation of the formed cationic and anionic moieties into novel clusters. Thus the homonuclear [Ag
5(C
2Ph)
6]
− and hetreonuclear [Au
2Cu(C
2Ph)
4]
−, [Au
3M
2(C
2Ph)
6]
− (M=Cu, Ag), [Ag
6Cu
7(C
2Ph)
14]
−, and [AuAg
6Cu
6(C
2Ph)
14]
− complexes were obtained. Extension of ethynylation reactions to neutral complexes resulted in the complexes [Au
2Ag
2(C
2Ph)
4(PPh
3)
2], [Ag
2Cu
2(C
2Ph)
4(PPh
3)
4], [AuAg(C
2Ph)
2]
n
, [AuCu(C
2Ph)
2]
n
, and [AgCu(C
2Ph)
2]
n
. Aspects of syntheses, structures and bonding in these complexes are reviewed.