Lille Spectroscopic Database
Code:
RAM36/RAM36hf
| Version | 2025.09.hfs |
| Tag | 45804 |
| Molecule - Descriptor | Nitrosomethane (CH3NO) - vt=0,1 |
| Isotope | parent |
| Hyperfine | Yes |
| Lines in DB | 36499 |
| Frequency max. (MHz) | 659634.2032 |
| J max. | 40 |
| Cite these data as | Margulès L., Fried Z.T.P., Byrne A.N., McGuire B.A., Zou L., Motiyenko R.A., Guillemin J.-C. 2025, ApJ, 986, 136 https://doi.org/10.3847/1538-4357/add47f |
| T(K) | Qt | Qrot | Qvib |
|---|---|---|---|
| 300.0 | 132724.870 | 132724.87 | 1.0 |
| 290.0 | 123212.910 | 123212.91 | 1.0 |
| 280.0 | 114098.300 | 114098.3 | 1.0 |
| 270.0 | 105379.000 | 105379.0 | 1.0 |
| 260.0 | 97052.710 | 97052.71 | 1.0 |
| 250.0 | 89116.830 | 89116.83 | 1.0 |
| 240.0 | 81568.460 | 81568.46 | 1.0 |
| 230.0 | 74404.340 | 74404.34 | 1.0 |
| 220.0 | 67620.880 | 67620.88 | 1.0 |
| 210.0 | 61214.050 | 61214.05 | 1.0 |
| 200.0 | 55179.410 | 55179.41 | 1.0 |
| 190.0 | 49512.030 | 49512.03 | 1.0 |
| 180.0 | 44206.450 | 44206.45 | 1.0 |
| 170.0 | 39256.640 | 39256.64 | 1.0 |
| 160.0 | 34655.910 | 34655.91 | 1.0 |
| 150.0 | 30396.850 | 30396.85 | 1.0 |
| 140.0 | 26471.280 | 26471.28 | 1.0 |
| 130.0 | 22870.160 | 22870.16 | 1.0 |
| 120.0 | 19583.490 | 19583.49 | 1.0 |
| 110.0 | 16600.260 | 16600.26 | 1.0 |
| 100.0 | 13908.360 | 13908.36 | 1.0 |
| 90.0 | 11494.540 | 11494.54 | 1.0 |
| 80.0 | 9344.340 | 9344.34 | 1.0 |
| 70.0 | 7442.140 | 7442.14 | 1.0 |
| 60.0 | 5771.180 | 5771.18 | 1.0 |
| 50.0 | 4313.910 | 4313.91 | 1.0 |
| 40.0 | 3052.920 | 3052.92 | 1.0 |
| 30.0 | 1974.120 | 1974.12 | 1.0 |
| 20.0 | 1075.170 | 1075.17 | 1.0 |
| 10.0 | 382.180 | 382.18 | 1.0 |
Details:
Each energy level is characterized by the asymmetric-top quantum numbers
J, Ka, and Kc, together with the free-rotor quantum number m.
When table includes hyperfine levels, the standard quantum number F = J + I is included in the level designation.
The correspondence between the m quantum number used in the .cat file and the vibrational–torsional quantum number
vt, as well as the associated symmetry species Γ = A or E of the C3v point group,
is summarized in the table below.
| m | 0 | 1 | -3 | -2 | 3 | 4 | -6 | -5 | 6 | 7 |
| vt | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 |
| Γ | A | E | A | E | A | E | A | E | A | E |