2018. Physiochemical and Antibacterial Studies of Two Tetradentate Ligands Type (N2O2) and Their Complexes withCoII, NiII and ZnII Ions. Ibn AL-Haitham Journal For Pure and Applied Sciences. 31, 1 (May 2018), 99–113. DOI:https://doi.org/10.30526/31.1.1858.