Synthesis, Spectroscopic Characterization, and Biological Evaluation Studies of 5-Bromo-3-(((hydroxy-2-methylquinolin-7-yl)methylene)hydrazono)indolin-2-one and Its Metal (II) Complexes

Table 7

The antimicrobial activity of ligand and its metal (II) complexes evaluated by MIC (μg/mL⁻¹).

Schiff base/complexes	S. aureus	B. subtilis	P. aeruginosa	A. flavus	A. niger	C. albicans
Ligand	100	75	75	100	50	75
Co(II) complex	12.50	12.50	12.50	12.50	12.50	12.50
Ni(II) complex	12.50	25	25	25	25	12.50
Cu(II) complex	25	50	12.50	75	12.50	25
Zn(II) complex	12.50	12.50	12.50	12.50	12.50	12.50
Cd(II) complex	50	50	25	50	25	50
Hg(II) complex	25	12.50	50	12.50	25	12.50
Gentamycine	12.50	12.50	12.50	—	—	—
Amphotericin	—	—	—	12.50	12.50	12.50