4,4 -Dimethyl-2,2 -bipyridine, ligand structure

In a similar vein, self-assembly of the dimethyl derivative of the corresponding tris(bipyridine) ligand in the presence of bipyrimidine and copper(I) spontaneously generates the new ladder structure 49. A similar tetranuclear structure derived from the corresponding bis(bipyridine) ligand has also been reported. 

In this communication we would like to report the synthesis and characterization of a new heteroleptic rutheni-um(II) complex with one of the bipyridine ligands replaced by a more conjugated ligand such as the 5,6-dimethyl-l,10-phenanthroline. Scheme 1 illustrates the molecular structure of the ruthenium(II) heteroleptic complex. Moreover, we have also carried out a study of the interfacial charge-transfer kinetics of the molecule when anchored onto the surface of nanocrystalline Ti02 semiconductor particles. 

Kubel, F., and Strahle, J., Polymeric dimethyl- and diphenylglyoximato complexes of cobalt and iron with 4,4 -bipyridine as a bridging ligand. The crystal structure of bis(dimethylglyoximato)4,4 -bipyridine cobalt(Il), Z. Naturforsch. B, 37, 272-275 (1982). 

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