Table 7
Methyl rocking fundamentals of solid methanol and its isotopologues at 10 K.
| Mode/cm−1 (µm) | CH3OH | CH3OD | CH2DOH | CHD2OH | CD3OH | CD3OD |
|---|---|---|---|---|---|---|
| ρ(CH3) | – | 1234 (8.10) | – | – | – | – |
| ρ(CH3) | 1158 (8.64) | 1161 (8.61) | – | – | – | – |
| ρ(CH3) | 1129 (8.86) | 1123 (8.90) | – | – | – | – |
| ω(CH2) | – | – | 1326 (7.54) | – | – | – |
| τ(CH2) | – | – | 1293 (7.73) | – | – | – |
| ρ(CH2) | – | – | 1108 (9.03) | – | – | – |
| ρ(CH2) | – | – | 1087 (9.20) | – | – | – |
| ω(CD2) | – | – | – | 949 (10.54) | – | – |
| τ(CD2) | – | – | – | 895 (11.17) | – | – |
| ρ(CD3) | – | – | – | – | 898 (11.14) | 900 (11.11) |
| ρ(CD3) | – | – | – | – | – | 832 (12.02) |
Notes. Band positions are given in cm−1, with corresponding wavelengths in μm shown in parentheses. ρ denotes in–plane rocking, ω out-of-plane wagging, and τ out-of-plane twisting; the vibrating group is indicated in parentheses. “–” indicates that the mode is not observed or not applicable for that isotopologue. Assignments are tentative.
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