Table 2
Infrared ice signatures from the CH4 + H + O2 reaction and the corresponding vibrational modes.
| Peak position | Peak position | Molecule | Mode* | Reference |
|---|---|---|---|---|
| (cm−1) | (μm) | |||
| 884 | 11.3 | H2 O2 | υ3 | 1, 2, 3 |
| 1001 | 9.99 | CH3OH | υ8 | this work |
| 1302 | 7.68 | CH4 | υ4 | 4, 5, 7, 8, 9 |
| 1381 | 7.24 | H2 O2 | υ2 | 1, 2, 3 |
| 1637 | 6.11 | H2O | υ2 | 6 |
| 2815 | 3.55 | CH4 | υ2 + υ4 | 4, 5, 7, 8, 9 |
| 2836 | 3.53 | H2 O2 | 2υ2 | 1, 2, 3 |
| 2902 | 3.45 | CH4 | υ1 | 7, 8, 9 |
| 3010 | 3.32 | CH4 | υ3 | 4, 5, 7, 8, 9 |
| 3295 | 3.0 | H2 O2 + H2O | O–H stretch | 10, 11 |
| 3675 | 2.7 | H2O | dangling bonds | 7 |
Notes. (*) The vibrational mode numbers are obtained from NIST.
References[1] Giguere & Harvey (1959), [2] Lannon et al. (1971), [3] Romanzin et al. (2011), [4] Hagen et al. (1981), [5] Gerakines et al. (2005), [6] Hodyss et al. (2009), [7] Gálvez et al. (2009), [8] Herrero et al. (2010), [9] Ennis et al. (2011), [10] Cuppen et al. (2010), [11] Ioppolo et al. (2010).
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