Sixteen symmetrical and four unsymmetrical tetradentate Schiff bases with the N₂O₂ chromophore were isolated in pure form and fully characterized by elemental analyses, melting point, IR. The appearance of two different peaks for each of the azomethine protons and phenolic protons confirm the asymmetry nature of the unsymmetrical Schiff bases. All the Schiff bases were successfully coordinated to oxovanadium (IV) ion to form the corresponding complexes. The unsymmetrical Schiff bases were also successfully coordinated to cobalt (II), nickel (II) and copper (II) ions to form their corresponding complexes. In all thirty -two metal (II) Schiff bases complexes were isolated. These complexes were characterized by elemental analyses, melting point, IR, EPR, cyclic voltammetry, magnetic susceptibility measurements, differential scanning calorimetry and electronic spectra.