217791-06-5Relevant academic research and scientific papers
Synthesis, spectroscopic, photophysical and electrochemical properties of cyano-bridged copper(I)-ruthenium(II) complexes
Ranjan, Sudhir,Dikshit
, p. 3071 - 3082 (1998)
Complexes of the formula [(N-N)Cu(AsPh3)CN] (N-N=2,2′-bipyridine, 1,10-phenanthroline) have been synthesized. Ru(bpy)2Cl2.2H2O and [(η5-cp)Ru(PPh3)2Cl] react with [(N-N)Cu(AsPh3)CN] to give cyano-bridged compounds. IR spectral studies in the low frequency region (700-50 cm-1) and 4000-400 cm-1 region reveal cyano bridging in the complexes. Luminescence measurements suggest oxidation of metal centres (CuI-CuII and RuII-RuIII) on excitation at a charge transfer band. This has been substantiated with electrochemical studies of complexes which exhibit quasi-reversible reductions viz. RuIIIRuII and CuIICuI. The deposition of metallic copper is also observed at a potential of -1.55 V. Based on these data, a mechanism for photo-redox reaction of complexes has been presented. The properties of these bimetallic complexes are compared with those of parent complexes.
