2023. Synthesis, Theoretical Study, and Biological Evaluation of Some Metal Ions with Ligand "Methyl -6-[2-(4-Hydroxyphenyl) -2-((1-Phenylethylidene) Amino) Acetamido] -2,2-Dimethyl-5—Oxo-1-Thia-4-Azabicyclo [3.2.0] Heptane-3-Carboxyylate. Baghdad Science Journal. 20, 1 (Feb. 2023), 0102. DOI:https://doi.org/10.21123/bsj.2022.6359.