Structural and Spectroscopic Study of Novel Tetradentate Macrocyclic Ligand Type N4 and It’s Complexes with CrIII, MnII, FeII, CoII, NiII ,CuII, PdII and CdII. (2017). Ibn AL-Haitham Journal For Pure and Applied Sciences, 22(4). https://jih.uobaghdad.edu.iq/index.php/j/article/view/1141