Binding of the Bi (III) Complex of Naringin with β-Cyclodextrin/Calf Thymus DNA: Absorption and Fluorescence Characteristics

Table 1

Comparison on the wave numbers of Naringin-Bi (III) and its 𝛽-CD inclusion complex by infrared spectroscopy.

Type of bonds	Naringin-Bi (III); Wave number (cm^−1)	𝛽-CD inclusion complex of Naringin-Bi (III); Wave number (cm^−1)
O–H stretching vibration	3418	3375
Carbonyl bond C=O	1638	1641
		1514
Aromatic C=C stretching	1510	—
	1445	—
C–O stretching	1359	1383
	1283	—
	1192	—
Aliphatic C–H stretching	2924	—
	2353	2360
	2330	—
–C–OH stretching	1113	1032
	1069	—
	891	—
	824	—
Deformation vibrations –C–H outside plane, related to substitution of aromatic rings of multiring compounds	629	616
	561	495
	469	482
	451