Application of Samarium- and Terbium-Sensitized Luminescence via a Multivariate-Based Approach for the Determination of Orbifloxacin

Table 4

FT-IR peak assignment for ORLX, ORLX-Sm(III), and ORLX-Tb(III) complexes.

	ORLX	ORLX-Sm(III)	ORLX-Tb(III)	Assignment
Absorption (cm^−1)	3427	3280	3300	O-H stretching and secondary amine N-H stretching
	2766	2817	2818	C-H stretching for an alkene
	2691	2738	2735	C-H stretching for an alkane
	1643	1613	1614	C=O stretching
	1566	1577	1577	Cyclic alkene C=C stretching
	1458	1472	1473	Methyl group C-H bending
	1363	1389	1389	Carboxylic O-H bending
	1278	1295	1295	C-N stretching
	1053	1056	1062	C-O stretching
	827	827	827	C=C bending