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Table 4.
Deuteration enhancement in TMC-1 for detected molecules compared to our gas-phase chemical model.
| Observations | Model A | Model B | |
|---|---|---|---|
| Molecule | TMC-1 | no | full |
| scrambling | scrambling | ||
| CH3C3N/CH2DC3N | 22 (a) | 75.8 | 31.4 |
| CH3CN/CH2DCN | 11 (b) | 15.0 | 15.0 |
| H2CCN/HDCCN | 20 (b) | 23.6 | 23.6 |
| HC3N/DC3N | 62 (c) | 54.9 | 54.5 |
| HNCCC/DNCCC | 43 (c) | 34.6 | 34.5 |
| HCCNC/DCCNC | 30 (c) | 27.2 | 27.1 |
| HC5N/DC5N (b) | 82 (c) | 23.3 | 23.3 |
| c-C3H2/c-C3HD | 27 (b) | 45.5 | 45.4 |
| C4H/C4D | 118 (b) | 55.5 | 55.3 |
| H2C4/HDC4 | 83 (b) | 49.5 | 49.4 |
| CH3CCH/CH3CCD | 49 (b) | 257 | 264 |
| CH3CCH/CH2DCCH | 10 (b) | 76 | 76 |
| CH3C4H/CH2DC4H | ≥35 (d) | 59 | 20 |
| CH3C4H/CH3C4D | ≥144 (d) | 136 | 55 |
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