Abstract Tetraaza Schiff base macrocyclic ligands,, and their transition metal chelates have been synthesized and characterized by elemental analyses, IR, electronic, EPR and NMR spectra, TGA and magnetic measurements. The molar conductance of one milli-molar solution of the complexes measured in DMF indicates that the divalent metal complexes are nonelectrolyte while those of trivalent metal ion, are 1: 1 electrolytic in the same solvent. ...
