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Table 2
Characteristic m/z peaks used for identification of photoproducts of UV photolysis of CH3 CN ice.
| CH3 CN m/z | CD3 CN m/z | Elemental composition | Proposed molecular species | Name | |
|---|---|---|---|---|---|
| 2 | 4 | H2 | H2 | Mol. hydrogen | |
| [0.5pt] 16 | 20 | CH4 | CH4 | Methane(*) | |
| 26, 27 | 26, 28 | CNH | HCN/HNC | Hydrogen (iso)cyanide(*) | |
| 40, 41 | 42, 44 | C2NH3 | CH3CN/CH3NC/ H2CCNH | Acetonitrile/methyl isocyanide(*)/ Ketenimine(*) | |
| 50, 51 | 50, 52 | C3NH | HCCCN | Propiolonitrile(*) | |
| 52 | 52 | C2N2 | (CN)2 | Cyanogen | |
| 26, 52, 53 | 26, 54, 56 | C3NH3 | CH2CHCN | 2-propenenitrile | |
| 28, 54 | 30, 58 | C3NH5 | CH3CH2CN | Propanenitrile | |
| 29, 55 | 32, 60 | C3NH5 | CH3CH2NC | Ethyl isocyanide | |
| 56 | 62 | C3NH6 | – | Imine (R-CHNH) | |
| 65–69 | 66, 68, 70, 72, 74 | C3N2Hx | – | ||
| 77–83 | 78–90 | C4N2Hy | – | – |
Notes. Species previously detected during in situ energetic processing of CH3 CN ice are marked with an asterisk (*) based on Hudson & Moore (2004); Abdulgalil et al. (2013).
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