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
	Staphylococcus  aureus	Bacillus  subtilis	Escherichia  coli	Pseudomonas  aeruginosa
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.