Table 2.

¹H-NMR Chemical shifts (δ, ppm) for CH protons of β-CD alone, daidzin alone and their complexation induced shifts (CIS = δ_complex − δ_guest) in D₂O at 30 °C.

β-CD	CH Protons	H-1	H-2	H-3	H-4	H-5	H-6
	δ alone	5.038	3.617	3.931	3.550	3.821	3.847
	CIS	−0.019	−0.021	−0.047	−0.012	−0.063	−0.050
Daidzin	CH protons	H-2	H-5	H-6	H-8	H-2′6′	H-3′5′
	δ alone	8.172	8.101	7.208	7.243	7.240	6.686
	CIS	−0.059	0.060	0.063	0.028	−0.019	0.031