Synthesis and characterization of Zn(II) complexes with some acylhydrazine Schiff bases

Some acylhydrazine derived Schiff bases and their Zn(II) complexes have been prepared and characterized on the basis of elemental analyses, molar conductances and spectroscopic (electronic, IR, H-1 NMR and C-13 NMR) data. All these Schiff bases function as tridentate ligands and the deprotonated enolic form is the preferred tautomer in the coordination of the metal ions.