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Table 1
Infrared spectra for H2CO/NH3 3:1 at 25K after 240 min of irradiation in our laboratory conditions.
| Wavenumbers (cm-1) | Assignement | moleculesa | A (cm molec-1) | Ref. |
|
|
||||
| 3330-3010 b | ν(OH) | CH3OH | ||
| 3393 s | ν(NH) | NH3 | (Kerkhof et al. 1999) | |
| 3256 m | ν(NH) | NH3 | (Kerkhof et al. 1999) | |
| 3215 m | ν(NH) | NH3 | (Kerkhof et al. 1999) | |
| 2992 s | ν(CH) | H2 CO | (Schutte et al. 1993) | |
| 2883 s | ν(CH) | H2 CO | (Schutte et al. 1993) | |
| 2819 s | ν(CH) | H2 CO | (Schutte et al. 1993) | |
| 2726 m | ν(CH) | H2 CO | (Schutte et al. 1993) | |
| 2341 vs | νas(CO2) | CO2 | 7.6 × 10-17 | (Gerakines et al. 1995) |
| 2275 w | νas(NCO) | HOCN | ||
| 2234 vw | νas(NCO) | HNCO | 7.8 × 10-17 | (van Broekhuizen et al. 2004) |
| 2161 w | νas(NCO) | OCN− | (Raunier et al. 2003) | |
| 2137 m | ν(CO) | CO | 1.1 × 10-17 | (Gerakines et al. 1996) |
| 2089 vw | ν(CN) | HCN | ||
| 1722 s | ν(C=O) | H2 CO | 9.6 × 10-18 | (Schutte et al. 1993) |
| 1688 w | ν(C=O) | NH2COOH | 5 × 10-18 | (Bossa et al. 2008) |
| 1638 w | δNH | NH3 | (Kerkhof et al. 1999) | |
| 1585 w | νas(COO−) | HCOO−NH |
1 × 10-16 | (Schutte et al. 1999) |
| 1495 m | δCH2 | H2 CO | 3.9 × 10-18 | (Schutte et al. 1993) |
| 1389 vw | δs(CH) | HCOO−NH |
1.7 × 10-18 | (Schutte et al. 1999) |
| 1348 vw | δas(CH) | |||
| 1302 vw | CH4 | 3.8 × 10-18 | (Hudgins et al. 1993) | |
| 1245 w | ρ(CH2) | H2 CO | (Schutte et al. 1993) | |
| 1168 w | ν(CO) | HCOOCH3 | (Gerakines et al. 1996) | |
| 1109 m | POM | (Schutte et al. 1993) | ||
| 1070 m | ω(NH) | NH3 | 1.3 × 10-17 | (Kerkhof et al. 1999) |
| 1031 w | ν(CO) | CH3OH | 1.8 × 10-17 | (Hudgins et al. 1993) |
| 944 w | ν(CO) | POM | 3 × 10-17 | (Schutte et al. 1993) |
| 910 vw | ν(CO) | HCOOCH3 | (Gerakines et al. 1996) | |
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