Metal Complexes of Bis (2,6-Diamine Pyridine 2,5-Hexanedione) Macrocyclic Schiff-Base Ligand: Preparation, Characterization and Thermal Study. Iraqi Journal of Science 2022, 63 (5), 1885-1893. https://doi.org/10.24996/ijs.2022.63.5.3.