Table 1
RAIR solid state spectral features for solid HCOOH and (HCOOH+H) observed in this work on graphite (HOPG) and np-ASW ice surfaces at 10 K.
| Surface | Graphite | H2O ice | ||
|---|---|---|---|---|
| Wavenumber (cm−1) | Wavenumber (cm−1) | Bond vibration | Assignment | |
| 1080 | 1070 | vB(HCO) (a),(b) out-of-plane | HCOOH | |
| 1237 | 1216 | vS(C–O) (a) | HCOOH | |
| 1397 | 1394 | δ(OH) (c); δ(CH) (c),(g) | HCOOH | |
| 1620 | vB(HOH) (a) | H2O | ||
| HCOOH | 1740 | 1729 | vS(C = O) (a) | HCOOH |
| 1997 | HCOO+ +H3O+ (b) | |||
| 2149 | vS(OC) | CO | ||
| 2589 | vS(OH) (a) | HCOOH | ||
| 2743 | vS(OH) (a) | HCOOH | ||
| 2934 | vS(CH) (a) | HCOOH | ||
| 3200 | 3218 | vS(OH) (a) | HCOOH | |
| 1029 | 1020 | vS(C–O) (d),(e) | CH3OH | |
| 1237 | 1216 | vS(C–O) (a) | HCOOH | |
| 1397 | 1396 | δ(OH)(c); δ(CH) (c),(g) | HCOOH | |
| 1535 | 1535 | vS(CH2) (c) | H2CO | |
| 1680 | 1655 | vB(HOH (a),(c) | H2O | |
| HCOOH+H | 1740 | 1729 | vS(C = O) (a) | HCOOH, H2CO |
| 1997 | HCOO+ +H3O+ (b) | |||
| 2149 | vS(OC) | CO | ||
| 2342 | 2345 | vS(C = O) (f) | CO2 | |
| 2589 | vS(OH) (c) | HCOOH | ||
| 2743 | vS(OH) (c) | HCOOH | ||
| 2934 | vS(CH) (c) | HCOOH | ||
| 3200 | 3218 | vS(OH) (f) | HCOOH+H2O | |
| + CH3OH | ||||
Notes. vS refers to the symmetric and antisymmetric stretching mode, δ refers to antisymmetric deformation mode, vB refers to the bending mode (Bisschop et al. 2007b).
References. (a) Bisschop et al. (2007a); (b) Hellebust et al. (2007); (c) Bouilloud et al. (2015); (d) Bennett & Kaiser (2007); (e) Martín-Doménech et al. (2014); (f)Bennett et al. (2011); (g)Schutte et al. (1999).
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