University of Kashan Journal of Nanostructures 2251-7871 Articles in Press 2024 08 24 Synthesis, Characterization and Biological Activity of novel Triazene Ligand and Its nanoComplexes with some Transition Metal Ion based on 2-amino-4-nitrobenzoic Acid 114464 EN Tabark Mohammed Khamir Ministry of Commerce, Grain Processing, Iraq Mohammed Hamid Said University of Babylon, College of Science for Girls, Department of Chemistry, Iraq Journal Article 2024 05 28 A new ligand derived from 2-amino-4-nitrobenzoic acid and 6-aminopenicillin acid was synthesized in a neutral medium pH = 7 to prepare new metal complexes of titanium(III), vanadium(III), and chromium(III). The ligand was characterized using FTIR, NMR, GCMass and UV-visible spectroscopy. The complexes were characterized using FTIR, ultraviolet-visible spectroscopy, magnetic susceptibility, molar conductivity, X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), and atomic absorption spectroscopy. In addition to studying some of the physical properties of the prepared compounds, the results showed that the functional groups are (-N=N-N-). The carbonyl functional group (C=O) of the beta-lactam acts as a bond in a molar ratio with the metal (1:2) M:L to give octahedral complexes. Two different types of bacteria were used to test the antibacterial properties of the compounds and complexes (Escherichia coli and Staphylococcus aureus). An excellent inhibitory effect against bacteria was found for the compound and its complexes (Escherichia coli and Staphylococcus aureus).