The results of the melting point determination of the compounds were presented in Table . The melting point of the ligand is lower compared to its metal complexes. The increase in the melting point of the complexes when compared to the ligands was due to coordination of the ligands to the various metal ions. B.M = Bohr magneton; ^m = conductivity measurement (Ω -1 cm 2 mol -1 ); L = deprotonated HL