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A series of ligands,HL1(2-acetylpyridine thiosemicarbazone),H2L2(bis(2-acetyl-pyridine) thiocarbonohydrazone) and H2L3(bis(imidazole-2-carboxaldehyde) thiocarbonohydrazone) was synthesized.H2L2 and H2L3 were characterized by elemental analysis,IR spectra