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Chemical shift (δ, ppm) change values relating to the signals of HP-β-CD and questin in the free and the complexed states
| Protons | δ (ppm) | |
|---|---|---|
| HP-β-CD | QHIC | |
| H-1 | 4.993 | 4.997 |
| H-2 | 3.533 | 3.547 |
| H-3 | 3.983 | 3.993 |
| H-4 | 3.430 | 3.443 |
| H-5 | 3.851 | 3.850 |
| H-6 | 3.750 | 3.746 |
| Protons | Questin | QHIC |
|---|---|---|
| H-2 | 7.275 | 7.306 |
| H-4 | 7.522 | 7.539 |
| H-5 | 7.087 | 7.106 |
| H-7 | 6.750 | 6.857 |
