Schiff base ligands have been in the chemistry catalogue for over 150 years.The literature clearly shows that the study of this diverse ligand system is linked with many of the key advances made in inorganic chemistry. Not only have they played a seminal role in the development of modern co-ordination chemistry, but they can also be found at key points in the development of inorganic biochemistry, catalysisand optical materials . Transition metal compounds containing Schiff base ligands have also been of great interest for many years. These compounds play an important role in the coordination chemistry related to catalysis and enzymatic reactions, magnetism and molecular architectures. Interest in the design, synthesis and characterization of transition metal complexes of unsymmetrical Schiff base ligands stem from the fact that the central metal ions in natural systems are unsymmetrical. Such compounds have been suggested as useful probes for the study of low symmetry complexes related to the low symmetry sites found in metalloproteins. These complexes are valuable to theoretical and experimental chemists .Recently, this dir=rtl align=right (1) [Cu II (Bzabza)OAc] (2) [Cu II 2 Bzabza) 2 (N 3 ) 2 (H 2 O) 2 ] (3) [Co II (5-nitrocalicylidenbenzylamine) 2 (bzln) 2 ] The steric effects of the ligand HBzabza, led to the formation of [Cu II (Bzabza)(OAc)] with a distorted square planar structure. The interesting phenomena is the tridentate Schiff base hydrolysis at imine linkage in the complex of azide and reformation of Schiff base from the other end of amine. This phenomena is attributed to the presence of the counter ion. Although imines are labile and readily hydrolyzed, metal ions stabilize imine bonds present on macrocyclic rings. Even though the character of counter ion in stabilization or activation of iminic bond has not been systematically investigated, recently,it has been shown that the formation of a mono or di-Schiff base complex is directed by the counter anion present in the system. The hydrolysis of the Schiff base ligand in the complex (3) has also been happened and has led to a rare structure around Co(II) ion. This is presumably due to the presense of amine and the occurance of the reaction under alkalin conditions. The HBzabza and its complexes were characterized by UV-Vis, FT-IR, 1 H-NMR and Elemental Analysis. The ligand and complexes (1), (2) and complex (3) were structurally characterized by X-Ray Diffraction.