The Schiff base technique was used to create the 12-membered tetradentate N6-macrocyclic complexes with MnII, CoII, NiII, and CuII. The general composition of these complexes was discovered to be [M(L)X] (where M is MnII, CoII, NiII, and CuII.; X is Cl-, SO42-, and L is Ligand). By using elemental analysis, conductance, magnetic susceptibility, IR spectra, electronic spectra, and NMR spectral analyses, the ligand and its transition metal complexes were identified. According to the spectral data, the geometry of metal sulphate and chloride complexes is tetrahedral for the former and octahedral for the latter.