Research Article

Polydentate Schiff Base Ligands and Their La(III) Complexes: Synthesis, Characterization, Antibacterial, Thermal, and Electrochemical Properties

Table 5

Antimicrobial activity data of the Schiff base ligands and their metal complexes.

Microorganisms12345678Control

Gram-positive bacteria
B. Megaterium 1218242032282629
B. Cereus 1818212329253132
S. Aureus 209171825292520
M. Luteus 1412181728222722
E. Faecalis 1615241922262818
Gram-negative bacteria
P. Aeruginosa 2913181527282632
E. Coli 2522141723333226
C. Albicans 2120191620272625

Inhibition zone (mm). Blanks mean not investigated. Control is the metal salt. 1: H2L1, 2: H2L2, 3: H2L3, 4: H2L4, 5: La2(L1)(NO3)4(H2O)4, 6: La(L2)(NO3)(H2O), 7: La2(L3)(NO3)4(H2O)4, 8: La2(L4)(NO3)4(H2O)4.