Table 1.
Proton assignments, 1H-NMR chemical shifts, and integrations of the β-cyclodextrin (βCD) and β-cyclodextrin-based nanosponge (βCDNS) signals.
| Protons | δβCD (ppm) | δβCDNS (ppm) | |Δδ| (ppm) | βCD Integration (∫) | βCDNS Integration (∫) | |Δ∫| |
|---|---|---|---|---|---|---|
| H1 | 4.825 | 4.827 | 0.002 | 7.00 | 7.00 | 0 |
| H2 | 3.311 | 3.301 | 0.010 | 6.99 | 6.98 | 0.01 |
| H3 | 3.669 | 3.655 | 0.014 | 6.99 | 6.98 | 0.01 |
| H4 | 3.370 | 3.361 | 0.009 | 7.14 | 7.15 | 0.01 |
| H5 | 3.566 | 3.562 | 0.004 | 7.04 | 7.04 | 0 |
| H6 | 3.621 | 3.624 | 0.003 | 13.83 | 13.84 | 0.01 |
| OH2 | 5.706 | 5.714 | 0.008 | 7.01 | 6.68 | 0.33 |
| OH3 | 5.661 | 5.665 | 0.004 | 7.02 | 6.57 | 0.45 |
| OH6 | 4.435 | 4.437 | 0.002 | 7.15 | 6.43 | 0.72 |