Bioinorganic Chemistry and Applications / 2015 / Article / Tab 2

Research Article

Synthesis, Characterization, Antioxidant, and Antibacterial Studies of Some Metal(II) Complexes of Tetradentate Schiff Base Ligand: (4E)-4-[(2-(E)-[1-(2,4-Dihydroxyphenyl)ethylidene]aminoethyl)imino]pentan-2-one

Table 2

FTIR spectral data of the Schiff base ligand H2LL and its metal complexes.

Compoundν(OH)·ν(H2O)ν(CH3/CH2) ν(C=N)ν(C=C)ν(C-O)ν(M-N)ν(M-O)

H2LL3475 sb2928 w, 2911 w1612 vs1534 s, 1480 m1243 s, 1271 s
Cu(LL)·2H2O3399 mb2975 s, 2902 m1588 vs1535 s, 1439 s1241 s, 1180 m522 m466 m
Ni(LL)·2H2O3346 mb2975 s, 2900 m1584 vs1534 s, 1442 s1242 s, 1180 m502 m465 w
Co(LL)·3H2O3422 mb2976 s, 2902 s1598 vs1542 m, 1461 m1250 s, 1190 m504 m427 m
Zn(LL)·H2O3417 sb2974 m, 2901 m1588 vs1534 s, 1481 m1266 s, 1242 s536 m436 s

s: strong; b: broad; v: very; m: medium; w: weak.

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