Synthesis, Characterization, and Photophysical Studies of Some Novel Ruthenium(II) Polypyridine Complexes Derived from Benzothiazolyl hydrazones

摘要

A series of five benzothiazolylhydrazone ligands 3a-3e and their seven novel Ru(II) polypyridine complexes 4a-4d, 5a, 5d, 5e of the type [Ru(N-N)2(L)]Cl2, where (N-N)2 is 2,2'-bipyridine (bpy)2 or 1,10-phenanthroline (phen)2 and (L) is ligands 3a-3e, have been synthesized and characterized by elemental analysis, IR,~1H NMR, electronic absorption, and emission spectral studies. The interpretation of the analytical data revealed that the ligands coordinate with the metal ion in a bidentate fashion through azomethine nitrogen and phenolic oxygen to form complexes. These ligands and complexes also exhibit absorption and luminescence properties.