The syntheses and crystal structures of transitional metal complexes of thr
ee substituted polypyridine ligands [4'-phenyl-2, 2' : 6', 2 "-terpyridine
(L1), 4', 4 "-diphenyl-2, 2' : 6', 2": 6", 2-quaterpyridine (L2) and 4', 4'
''-diphenyl-2, 2' : 6', 2 " : 6 ", 2"' : 6"', 2''''-quenquepyridine (L3)] a
re reported in this work. Comparison of the structures of these complexes s
hows that the central metal ion has an inducing effect on the formation of
the configuration of complexes.