Synthesis, Characterization, PXRD Studies, Theoretical Calculation, and Antitumor Potency Studies of a Novel N,O-Multidentate Chelating Ligand and Its Zr(IV), V(IV), Ru(III), and Cd(II) Complexes

Table 8

Results of antibacterial bioassay of the ligand (H2L) and its complexes of Zr(IV), V(IV), Ru(III), and Cd(II) against different strains of bacteria.

Microorganism	Sample
	H2L	Zr (IV) complex	V (IV) complex	Ru (III) complex	Cd (II) complex	Standard antibiotic
Gram-negative bacteria	Gentamicin
Escherichia coli (ATCC:10536)	10.6 ± 0.5	0	15.5 ± 0.6	17.8 ± 0.6	38.6 ± 0.6	27 ± 0.5
Klebsiella pneumonia (ATCC:10031)	9.6 ± 0.6	16.6 ± 0.6	14.3 ± 0.5	15.1 ± 0.5	20.6 ± 0.6	25 ± 0.5
Gram-positive bacteria	Ampicillin
Staphylococcus aureus (ATCC:13565)	8.7 ± 0.6	11.2 ± 0.5	10.5 ± 0.5	11.3 ± 0.5	28.3 ± 0.6	22 ± 0.1
Streptococcus mutans (ATCC:25175)	6.8 ± 0.5	0	0	13.6 ± 0.5	22.6 ± 0.6	30 ± 0.5