COUPLING OF 1,3-DIYNES ON METAL CENTERS - MOLECULAR-STRUCTURE OF RU-2(MU CC(C-CPH)C[C2PH(CO-2(MU-DPPM)(CO)(4))]CPH)(CO)(6)/

The reaction between Ru-3(mu(3)-PhC2C=CPh)(mu-CO)(CO)(9) and Co-2(mu-d ppm)(CO)(6) afforded the title complex, in which a Co-2(mu-dppm)(CO)(4 ) unit, is attached to one of the C=C triple bonds of a mu-2 eta(1):et a(4)-PhCC(C=CPh)C(C=CPh)CPh ligand bonded to an Ru-2(CO)(6) fragment.