Table 2.
samples | I | II | III | IV | V |
---|---|---|---|---|---|
Carbonyl Carbons | |||||
T1(s) | 4.3 ±0.3 | 5.0 ± 0.4 | 4.1 ± 0.4 | 3.5 ± 0.4 | 4.2 ± 0.4 |
T1ρ (ms) | 4.3 ± 0.2 | 5.2 ± 0.3 | 6.0 ± 0.4 | 7.5 ± 0.7 | 4.6 ± 0.3 |
τc(s) | (8.14 ± 0.48) × 10−7 | (7.98 ± 0.54) × 10−7 | (6.72 ± 0.54) × 10−7 | (5.55 ± 0.55) × 10−7 | (7.78 ± 0.64) × 10−7 |
CD (s−2) | (1.43 ± 0.02) × 108 | (1.21 ± 0.01) × 108 | (1.24 ± 0.02) × 108 | (1.20 ± 0.02) × 108 | (1.40 ± 0.02) × 108 |
Aliphatic Carbons | |||||
T1(s) | 0.90 ± 0.06 | 0.68 ± 0.05 | 0.98 ± 0.07 | 0.94 ± 0.07 | 0.93 ± 0.11 |
T1ρ (ms) | 2.34 ± 0.14 | 1.90 ± 0.09 | 3.39 ± 0.25 | 3.78 ± 0.36 | 2.47 ± 0.29 |
τc(s) | (5.04 ± 0.28) × 10−7 | (4.86 ± 0.23) × 10−7 | (4.37 ± 0.30) × 10−7 | (4.05 ± 0.36) × 10−7 | (4.99 ± 0.55) × 10−7 |
CD (s−2) | (4.23 ± 0.02) × 108 | (5.40 ± 0.06) × 108 | (3.37 ± 0.02) × 108 | (3.26 ± 0.03) × 108 | (4.06 ± 0.03) × 108 |