**3.1 Minimum inhibitory concentration (MIC) determination**

The antimicrobial activity of compounds **2 h**, **2j**, and **3f** has been reported based on MIC values, which are defined as the lowest concentration of an antimicrobial that visibly inhibits bacterial growth after overnight incubation. As shown in **Table 2**, MIC values ranged between 0.0024 and 0.3125 mg mL−1 for M.luteus LB 14110. Listeria monocytogenes ATCC 19117 shows the range from 0.0048 to 1.25 mg mL−1 and for Salmonella typhimurium ATCC 14028 the MIC values varied between 0.0024 and 1.25 mg mL−1. The Ag complex **3f** showed better activity than ampicillin against Micrococcus luteus as well as for Salmonella Typhimurium with an MIC of 0.0024 mg/ mL. Whereas, L. monocytogenes exhibited an MIC value of 0.0048 mg/mL using the same complex. The MICs of the other compounds were in the range tested.
