A series of soluble trinuclear copper(I) and silver(I) complexes containing bicapped diynyl ligands,[M
3(
-dppm)
3(
3-
1-C
CC
CR)
2]PF
6 (M = Cu, R = Ph, C
6H
4-CH
3-
p, C
6H
4-OCH
3-
p,
nC
6H
13, H; M = Ag,R = Ph, C
6H
4-OCH
3-
p), has been synthesized and their electronic, p
hotophysical, and electrochemicalproperties studied. The X-ray crystal structures of [Cu
3(
-dppm)
3(
3-
1-C
CC
CPh)
2]PF
6 and [Cu
3(
-dppm)
3(
3-
1-C
CC
CH)
2]PF
6 have been determined.