Synthesis, Characterization, and Biological Activity of Some Transition Metal Complexes Derived from Novel Hydrazone Azo Schiff Base Ligand

Table 5

The in vitro antimicrobial activity of ligand, their metal(II) complexes, and free-metal cations evaluated by minimum (MIC inhibitory concentration, μg/mL).

Compound	Antibacterial activity				Antifungal activity
	Metal complexes (free-metal cations)				Metal complexes (free-metal cations)
	S. aureus	E. coli	P. aeruginosa	B. subtilis	A. niger	C. albicans	R. bataicola
CDHBHZ	200	100	350	400	300	200	300
[VOL · H2O]	75 (175)	55 (—)	200 (300)	150 (—)	175 (370)	50 (275)	200 (250)
[CoL · H2O]	10 (350)	15 (095)	25 (500)	20 (410)	55 (650)	10 (—)	75 (—)
[NiL · H2O]	30 (215)	25 (150)	20 (550)	80 (—)	60 (400)	70 (350)	35 (450)
[CuL · H2O]	10 (400)	25 (275)	20 (705)	15 (550)	10 (515)	10 (500)	30 (655)
[ZnL · H2O]	90 (205)	45 (—)	100 (370)	200 (—)	50 (—)	50 (105)	75 (305)
Standard	5	5	10	5	5	10	5