Fourier transform high resolution study of the 3v2, 2v2 v5, v2 2v5/0 and 3v5/±1 rovibrational bands of CH3 79Br from 3830 cm-1 to 4300 cm-1
Abstract
About 2000 lines of the four bands quoted in the title have been assigned. A root-mean-square deviation of about 0·0235 cm-1 has been achieved by a least-squares fit over 1771 lines. For this purpose, a model involving 15 levels, linked either by the x-y Coriolis resonance between the v2 and v5 modes or by slight anharmonic resonances, was used. Several perturbations remain unexplained in the 3v5/±1 band, the centre of which is shifted by the Fermi resonance between the v5=3±1 and the (v1=1,v5±1), levels.
- Publication:
-
Molecular Physics
- Pub Date:
- 1994
- DOI:
- 10.1080/00268979400100894
- Bibcode:
- 1994MolPh..82.1259B