Table 3.
Values of TCH and T1ρ(H) for the specific 13C nuclei with an isotropic chemical shift δiso in the studied hybrids, as derived from 1H-13C cross-polarization/magic angle spinning (CP/MAS) NMR measurements.
| Compound | Carbon Site | δiso (ppm) | TCH (μs) | T1ρ(H) (ms) |
|---|---|---|---|---|
| HLT3 × MeOH | C | 66.2 ± 0.1 | 233 ± 29 | 17.1 ± 2.8 |
| HLT3 × MeNH2 | C | 25.2 ± 0.1 | 131 ± 10 | 1.5 ± 0.1 |
| HLT3 × BuNH2 | C1 | 39.7 ± 0.1 | 79 ± 6 | 1.3 ± 0.1 |
| C2 | 30.4 ± 0.1 | 129 ± 9 | 1.8 ± 0.1 | |
| C3 | 21.1 ± 0.1 | 182 ± 13 | 2.3 ± 0.2 | |
| C4 | 13.8 ± 0.1 | 700 ± 93 | 5.8 ± 0.6 | |
| HLT3 × MEA | C1,C1* | 42.4 ± 0.1 | 64 ± 9 | 2.3 ± 0.4 |
| C2 | 58.7 ± 0.1 | 87 ± 11 | 1.8 ± 0.3 | |
| C2* | 69.4 ± 0.1 | 67 ± 14 | 1.5 ± 0.6 |