Bond

Frequency

Change

Δδ

HPβ-CD

SWE + HPβ-CD

O-H

3338.18

3341.07

+2.89

C-H

2925.48

2926.45

+0.97

C=O (general carbonyl)

1643.05

1627.63

−15.42

C=O carboxyl

-

1731.76

+1731.76

C-OH

1020.16

1024.98

+4.82