Thermal, Spectral, Fluorescence, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes Derived from 4-[(5-Bromo-thiophen-2-ylmethylene)-amino]-3-mercapto-6-methyl-5-oxo-[1,2,4]triazine
Table 4
Antibacterial activity of synthesized compounds through agar well diffusion method.
Compound
Diameter of growth of inhibition zone (mm)a
Staphylococcusaureus
Bacillussubtilis
Escherichiacoli
Pseudomonasaeruginosa
HL
16.3
18.3
—
—
Co(L)(OAc)·3H2O
18.3
18.3
—
—
Co(L)2·2H2O
16.3
19.6
—
—
Ni(L)(OAc)·3H2O
17.3
18.0
—
—
Ni(L)2·2H2O
17.3
19.6
—
—
Cu(L)(OAc)·H2O
16.3
18.3
—
—
Cu(L)2
20.6
22.6
—
—
Zn(L)(OAc)·3H2O
19.3
21.3
—
—
Zn(L)2·2H2O
17.3
19.6
—
—
Ciprofloxacin
26.6
24.0
25.0
22.0
—No activity.
aValues, including diameter of the well (8 mm), are means of three replicates.