| Version | 2022.06 |
| Tag | 47802 |
| Molecule - Descriptor | Dimethyl Ether, Methoxymethane (CH3OCH2D) - a-conformer, vt=0 |
| Isotope | D |
| Hyperfine | N/A |
| Lines in DB | 23694 |
| Frequency max. (MHz) | 1499953.5155 |
| J max. | 91 |
| Cite these data as | Richard C., Margulès L., Caux E., Kahane C., Ceccarelli C., Guillemin J.-C., Motiyenko R.A., Vastel C., Groner P. 2013, A&A, 552, A117 https://doi.org/10.1051/0004-6361/201220826 |
| T(K) | Qt | Qrot | Qvib |
|---|---|---|---|
| 300.0 | 98011.358 | 98011.358 | 1.0 |
| 225.0 | 63635.248 | 63635.248 | 1.0 |
| 150.0 | 34630.166 | 34630.166 | 1.0 |
| 75.0 | 12247.850 | 12247.85 | 1.0 |
| 37.5 | 4336.772 | 4336.772 | 1.0 |
| 18.75 | 1538.516 | 1538.516 | 1.0 |
| 9.375 | 547.782 | 547.782 | 1.0 |
| 5.0 | 216.022 | 216.022 | 1.0 |
| 2.275 | 68.462 | 68.462 | 1.0 |
Details: Each level is characterized by the usual asymmetric top quantum numbers
J, Ka, and Kc, and the free rotor quantum number m.
When table includes hyperfine levels, standard F = J+I quantum number is added to the labeling.
The correspondence between
m quantum number in .cat file and the vibrational torsional quantum number vt and symmetry species Γ = A or E
of C3v symmetry point group is given in the table →
| m | vt | Γ |
|---|---|---|
| 0 | 0 | A |
| 1 | 0 | E |
| -3 | 1 | A |
| -2 | 1 | E |
| 3 | 2 | A |
| 4 | 2 | E |
| -6 | 3 | A |
| -5 | 3 | E |
| 6 | 4 | A |
| 7 | 4 | E |
Lille Spectroscopic Database