The hybrid-type bands ν1 and ν3 of 16O16O18O: Line positions and intensities

Details The hybrid-type bands ν1 and ν3 of 16O16O18O: Line positions and intensities The hybrid-type bands ν1 and ν3 of 16O16O18O: Line positions and intensities

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jmosp.118..345c&link_type=abstract

Journal of Molecular Spectroscopy, Volume 118, Issue 2, p. 345-354.

Computer Science

42

Scientific paper

A study of 0.005-cm-1-resolution room temperature absorption spectra of 18O-enriched ozone around 10 μm has been performed leading to a thorough analysis of the hybrid ν1 and ν3 bands of 16O16O18O. The experimental rotational energy levels of the interacting vibrational states (100) and (001) were reproduced with the aid of a Hamiltonian taking fully into account the vibration-rotation interactions. Precise vibrational energies and rotational and coupling constants were deduced. The following band centers were determined: ν1 = 1090.3541 cm-1, ν3 = 1028.1120 cm-1. Assuming the 16O18O16O line intensities calculated previously [J.-M. Flaud, C. Camy-Peyret, V. Malathy Devi, C. P Rinsland, and M. A. H. Smith, J. Mol. Spectrosc. 118, 000-000 (1986)] and a factor of 2 between the abundances of 16O16O18O and 16O18O16O, the amount of 16O16O18O in the cell was evaluated and used to determine 75 absolute intensities of ν1 and ν3 band lines of 16O16O18O. From these experimental values, the coefficients appearing in the transformed transition moment operators of these bands were derived. Finally, a complete spectrum of the ν1 and ν3 bands of 16O16O18O has been computed, which, combined with the results of our previous work on 16O18O16O (cited above), gives a detailed description of the absorption of the monosubstituted 18O isotopes of ozone in the 10-μm region.

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