H2O-18: The (030), (110), and (011) interacting states - Line positions and intensities for the 3 nu 2, nu 1 + nu 2, and nu 2 + nu 3 bands

Details H2O-18: The (030), (110), and (011) interacting states - Line positions and intensities for the 3 nu 2, nu 1 + nu 2, and nu 2 + nu 3 bands H2O-18: The (030), (110), and (011) interacting states - Line positions and intensities for the 3 nu 2, nu 1 + nu 2, and nu 2 + nu 3 bands

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985cajph..63.1112c&link_type=abstract

Canadian Journal of Physics (ISSN 0008-4204), vol. 63, Aug. 1985, p. 1112-1127. CNRS-supported research.

Physics

23

Line Spectra, Molecular Spectroscopy, Oxygen Isotopes, Water Vapor, Data Reduction, Molecular Energy Levels, Molecular Rotation, Spectral Bands, Spectral Line Width, Vibrational Spectra

Scientific paper

The spectrum of oxygen-18 enriched water vapor was recorded between 4400 and 6100/cm with the aid of a Fourier transform spectrometer. Its analysis allowed the determination of 60 energy levels of the (030) vibrational state of H2 O-18 and improvements in the knowledge of the energy levels belonging to the (110) and (011) vibrational states of this molecule. A fit of 330 rotational levels of the (030), (110), and (011) states was performed using 54 effective constants and taking into account the Coriolis-type and Fermi-type interactions. Moreover, 853 line intensities belonging to the 3 nu 2, nu 1 + nu 2, and nu 2 + n 3 bands were measured. The constants involved in the rotational expansion of the transformed transition moment operator corresponding to these bands were determined through a fit of these line intensities. The constants obtained were then used to compute the whole spectrum 3 nu 2, nu 1 + nu 2, and nu 2 + nu 3 bands of H2O-18. This spectrum should be of interest for atmospheric studies.

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