Table 3.
Chemical shifts of proton and carbon in glucose skeleton of chitosan cyclohexyl urea (c).
| 1H NMR δ (ppm) | 13C NMR δ (ppm) | ||
|---|---|---|---|
| H1 | 5.22 | C1 | 102.7 |
| H2 | 4.08 | C2 | 59.6 |
| H3 | 4.35 | C3 | 75.4 |
| H4 | 4.08 | C4 | 81.4 |
| H5 | 4.26 | C5 | 74.9 |
| H6 | 4.72, 5.22 | C6 | 67.7 |
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