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Fourier Transform Spectroscopy of the O2Herzberg Bands
- Source :
- Journal of Molecular Spectroscopy; November 1999, Vol. 198 Issue: 1 p136-162, 27p
- Publication Year :
- 1999
-
Abstract
- The absorption spectra of the O2Herzberg band systems (A3Σ+u–X3Σ−g, c1Σ−u–X3Σ−g, and A′ 3Δu–X3Σ−g) lying in the wavelength region 240–300 nm were reinvestigated. The coupling of a long absorption cell and a high-resolution Fourier transform spectrometer has allowed the observation of numerous weak lines which were not reported previously. From the rotational analysis of the line positions, determined with an accuracy of 0.005 cm−1, the molecular constants of the A3Σ+u, v= 0–12, c1Σ−u, v= 2–19, and A′ 3Δu, v= 2–12 levels are improved significantly. The interaction between the Aand cstates is described quantitatively. A new interpretation of the perturbations observed in the energy region close to the dissociation limit is given which involves a weakly bound 3Πustate as the most probable perturbing state.
Details
- Language :
- English
- ISSN :
- 00222852 and 1096083X
- Volume :
- 198
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Journal of Molecular Spectroscopy
- Publication Type :
- Periodical
- Accession number :
- ejs716166
- Full Text :
- https://doi.org/10.1006/jmsp.1999.7950