Preparation, Characterization, and Antimicrobial Activities of Bimetallic Complexes of Sarcosine with Zn(II) and Sn(IV)

Table 5

Antibacterial activity data^a--e of complexes and ligand against selected bacterial strains.

Compound no.	Bacterial inhibition zone (mm)
	S. aureus	B. subtilis	E. coli	P. multocida
HL	12.5^c  ±  0.86	13.0^c  ±  1.00	12.5^c  ±  0.86	12.0^c  ±  1.41
(1)	20.8^bc  ±  1.00	18.0^c  ±  1.00	25.2^c  ±  0.86	21.0^ab  ±  1.00
(2)	21.0^bc  ±  1.00	20.5^bc  ±  0.86	27.5^bc  ±  0.86	24.5^ab  ±  0.86
(3)	20.8^bc  ±  1.00	18.6^c  ±  1.00	26.2^c  ±  0.86	21.3^ab  ±  1.00
(4)	30.0^ab  ±  1.41	21.5^bc  ±  1.65	28.0^bc  ±  1.41	23.0^ab  ±  1.00
(5)	32.5^ab  ±  1.65	54.5^a  ±  0.86	51.0^a  ±  1.00	32.5^a  ±  1.65
(6)	31.5^ab  ±  0.86	33.0^bc  ±  1.41	32.0^ab  ±  1.00	30.0^ab  ±  1.41
Ampicillin	38.5^a  ±  0.86	40.0^ab  ±  1.41	39.5^ab  ±  0.86	32.0^ab  ±  1.41

aConcentration: 1 mg/mL in DMSO.
bStandard: ampicillin.
c0: no activity, 5–10: activity present, 11–25: moderate activity, 26–40: strong activity.
dAntibacterial values are mean ± S.D of samples analyzed individually in triplicate at 𝑃<0.1.
eDifferent letters in superscript indicate significant differences.