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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

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