Table 2
VUV photoabsorption features detected after deposition of pure nitrogen oxide ices at 22 K and compared to band peak positions of a VUV spectrum of 1 keV irradiated O2:N2 = 1:1 mixture heated to 50 K.
| Position (nm) | ||
|---|---|---|
| Molecule | This work(a) | Literature(a,b) |
| NO | – | <100 s, sh |
| 136 m | – | |
| 147 m | 149 m | |
| 206 vs | 208 vs | |
| N2O | – | 112 s |
| 133 vs | 128 vs | |
| 139 vs | 139 m | |
| 183 vw | 178 vw | |
| 225 vw | – | |
| NO2 | 132 m, sh | |
| 163 s | ||
| 183 vs | ||
| 230 m, sh | ||
| O2:N2 = 1:1(c) | 137 vs, sh | |
| 185 s | ||
| 242 m, sh | ||
Notes. (a) vw = very weak, w = weak, m = medium, s = strong, vs = very strong, sh = shoulder; (b) Lu et al. (2008); (c) ice mixture exposed to 1 keV electrons at 22 K and then heated to 50 K.
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