Zr(IV), La(III), and Ce(IV) Chelates with 2-[(4-[(Z)-1-(2-Hydroxyphenyl)ethylidene]aminobutyl)-ethanimidoyl]phenol: Synthesis, Spectroscopic Characterization, and Antimicrobial Studies

Table 2

Infrared band assignments (cm⁻¹) and electronic spectral data (nm, cm⁻¹) of Schiff base (SB) and its chelates.

Comp.	IR spectral data, cm^−1							Electronic spectral data, nm (cm^−1)
	(OH)	(C=N)	(CH3)	(CH)	(CH2)	(M–O)	(M–N)
SB	3416	1612	1308	755	2932	—	—	269 (37175),
								329 (30395)
Zr(L)·4H2O	3413	1617	1330	863	2921	527	444	249 (40160),
								322 (31055)
La(L)·5H2O	3545	1642	1339	819	2926	565	424	—
Ce(L)·3H2O	3402	1633	1428	748	3079	617	482	—