Table IV.
1H NMR Chemical Shifts of Baicalin in Its Solution and Inclusion Complexes; 400 MHz; 25°C
| Baicalin | γ-CD + Baicalin | RAMEB-CD + Baicalin | SBE-β-CD + Baicalin | ||||
|---|---|---|---|---|---|---|---|
| δ (ppm) | δ (ppm) | Δδ (ppm) | δ (ppm) | Δδ (ppm) | δ (ppm) | Δδ (ppm) | |
| H-3 | 6.9331 | 6.8348 | − 0.0983 | 6.9145 | − 0.0186 | 6.9211 | − 0.0120 |
| H-8 | 7.1301 | 7.0652 | − 0.0649 | 7.1096 | − 0.0205 | 7.1223 | − 0.0078 |
| H-3′,-4′,-5′ |
7.6811 7.76–7.60 |
7.6240 7.72–7.55 |
− 0.0571 | 7.67217.7434–7.6028 | − 0.0090 |
7.6652 7.7365–7.5939 |
− 0.0159 |
| H-2′,-6′ | 8.0986 | 8.0043 | − 0.0943 | 8.0799 | − 0.0187 | 8.0908 | − 0.0078 |