Table 4
Mass-scaled spectroscopic constants of 13C12C in the (2-0) Phillips system.
| Constants(a) | X1Σ+ (v = 0) | A1 Π(v = 2) | |
|---|---|---|---|
| This work(b) | Literature(c) | This work(b) | |
| Band origin | 11354.65876 | ||
| Bv | 1.74133 | 1.741417 | 1.51402 |
| Dv × 106 | 6.46215 | 6.530 | 6.06544 |
| qv × 104 | −1.77837 | ||
| qD × 109 | 4.31457 | ||
Notes. All values are in cm−1.(a) Bv and Dv are rotational and centrifugal distortion parameters, while qv and qD are Λ-type doubling constants. v define vibrational quantum numbers; see Chen et al. (2015) for details. (b)Calculated from 12C2 (Chen et al. 2015) and isotopic relations (see the main text). (c)Laboratory spectroscopic data; see Amiot & Verges (1983).
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