3.7. Antibacterial activity
The ligand and metal complexes have been screened for antibacterial activities and results have been shown in (Table 5). The antibacterial activity of the compounds No.1–5 is examined against three strains of bacteria, one gram positive S. aureus, and two gram negative P. vulgaris and E. coli. The effectiveness of the compounds is classified into three categories, Sensitive, Intermediate and Resistant. If a compound is sensitive to a bacteria then it can be applied to cure the disease caused by the bacteria, while it fails to do so if it is resistant to the bacteria. Accordingly the effectiveness of the compound can be predicated by knowing the zone of inhibition value in mm. The results ( Graph 4) show that the ligand was found to posses more antibacterial activity than the complexes against different bacteria.