3. Antibacterial Activities of the Studied Complexes .
| inhibition
zones in mm |
||||||
|---|---|---|---|---|---|---|
| microorganisms | H2L | Mn(II) | Cr(III) | Co(II) | control (DMSO) | antibiotic |
| Gram-negative Bacteria | ||||||
| Escherichia coli | 14 | 20 | 18 | 16 | 25 | |
| Salmonella typhimurium | 14 | |||||
| Klebsiella pneumonia | 14 | 20 | ||||
| Enterobacter cloacae | ||||||
| Gram-positive Bacteria | ||||||
| Bacillus subtilis | 14 | 19 | 25 | |||
| Bacillus cereus | 11 | 16 | 17 | 15 | ||
| Staphylococcus aureus | 12 | 15 | 17 | 16 | 23 | |
| Staphylococcus epidermidis | 12 | 16 | 17 | 16 | 23 | |
No inhibition zone means <9 mm.