CYANO-BRIDGED COPPER(I) RUTHENIUM(II) COMPLEXES - SYNTHESES, CHARACTERIZATION AND SPECTROSCOPIC STUDIES

New complexes of the formulae [(N-N)Cu(PPh3)CN] (N-N = 2,2'-bipyridine, 1,10-phenanthroline) have been isolated and used to synthesize the novel cyano-bridged copper(I)-ruthenium(II) complexes [(N-N)Cu(PPh3)(mu-CN)Ru(bpy)2Cl]PF6 (bpy = 2,2'-bipyridine) and [(N-N)Cu(PPh3)(mu-CN)Ru(eta5-Cp)(PPh3)2]PF6 (Cp = cyclopentadienyl anion). In addition, the complexes [(PPh3)2Cu(mu-CN)Ru(bpy)2Cl]PF6 and [(PPh3)2Cu(mu-CN)Ru(eta5-Cp)(PPh3)2]PF6 or BF, have been synthesized using [(PPh3)2CuCN]. All the complexes have been characterized on the basis of elemental analyses, spectroscopic data (IR, UV-vis, H-1, C-13 and P-31 NMR), and magnetic and conductivity measurements. Spectroscopic data clearly indicate that in these complexes copper(I) and ruthenium(II) are bonded via a cyanide bridge.