Table 3
Key reactions responsible to uncertainties on major C3Hp compounds at an altitude of 1300, 1000, 600, and 200 km.
| Methylacetylene CH3C2H | ||||
| Reaction | RCCs | |||
| at 1300 km | at 1000 km | at 600 km | at 200 km | |
|
|
||||
| CH + CH4 → C2H4 + H | −0.22 | |||
| CH + C2H4 → CH3C2H + H | 0.70 | 0.71 | 0.22 | |
| N(2D) + HCN → CH + N2 | 0.51 | 0.43 | ||
| H + C2H2 + M → C2H3 + M | 0.83 | |||
| H + C3H3 → CH3C2H | 0.26 | 0.56 | ||
| H + CH3C2H → C3H5 | −0.47 | −0.23 | ||
| Propene C3H6 | ||||
| Reaction | RCCs | |||
| at 1300 km | at 1000 km | at 600 km | at 200 km | |
|
|
||||
| H + C2H2 + M → C2H3 + M | 0.80 | |||
| H + C3H6 + M → C3H7 + M | −0.87 | −0.33 | ||
| H + C3H3 → CH3C2H | 0.21 | |||
| H + C3H5 → C3H6 | 0.64 | 0.70 | ||
| CH3 + C3H5 → C4H8 | −0.22 | −0.28 | ||
| Propane C3H8 | ||||
| Reaction | RCCs | |||
| at 1300 km | at 1000 km | at 600 km | at 200 km | |
|
|
||||
| C2H + C2H6 → C2H5 + C2H2 | 0.20 | 0.20 | ||
| C2H + C3H8 → C3H7 + C2H2 | −0.24 | −0.26 | −0.32 | −0.30 |
| CH3 + C2H5 → C3H8 | 0.44 | 0.39 | 0.56 | 0.69 |
| H + C2H5 → CH3 + CH3 | −0.25 | −0.26 | −0.21 | |
Notes. Only reactions with absolute values of RCCs greater than 0.2 are given. A blank means that the absolute value of RCC is lower than 0.2 and it is not given for clarity.
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