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Table 5

Peak position of the bands detected in the IR spectra of H2O:CH4=4:1 ice mixture as deposited at 12 K and 40 K and after irradiation.

Wavenumber (cm-1) Molecule
12 K 40 K

3300 3291 H2O
3010 3009 CH4
2975 2976* C2H6*
2341 2341* CO2*
2137 2136* CO*
1680 1663 H2*O
1500 1497* H2CO*
1301 1301 CH4
1017 1017* CH3OH
807 806 H2O

Notes. 

(*)

Detected after irradiation.

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