Abstract

Two new Zn (II) complexes with 3-methoxysalicylaldehyde-4-hydroxybenzoylhydrazone and 3-methoxysalicylaldehyde isonicotinoylhydrazone have been synthesized. The hydrazones reacted with zinc ions as monobasic tridentate ligands to yield mononuclear complexes with 1:2 metal:ligand molar ratio. The zinc complexes were characterized by elemental and thermogravimetric analyses and IR spectroscopy. The spectral data of the complexes were interpreted on the basis of comparison with the spectra of the free ligands. This analysis revealed coordination to the metal ion through phenolic-oxygen, azomethine-nitrogen and amide-oxygen atoms.