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Fourier transform absorption spectra of H2O and H2O in the 8000-9400 cm spectral region |
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| Authors: | A-W Liu S-M Hu C Camy-Peyret O Naumenko |
| Institution: | a Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China b Shanghai Institute for Advanced Studies, University of Science and Technology of China, Shanghai, 201315, China c Laboratoire de Physique Moléculaire pour l’Atmosphère et l’Astrophysique, CNRS and Université Pierre et Marie Curie, Boite 76, 4 Place Jussieu, 75252 Paris Cedex 05, France d Institute of Atmospheric Optics, SB, Russian Academy of Sciences, Tomsk, Russia e Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK |
| Abstract: | Fourier transform spectra of water vapor enriched in 18O and 17O were recorded between 8012 and 9336 cm−1 and analyzed for the first time. High accuracy ab initio predictions of line positions and intensities by Partridge and Schwenke J. Chem. Phys. 106 (1997) 4618-4639; 113 (2000) 6592-6597] were used in the process of spectrum assignment. Transitions involving the (031), (111), (130), (210), and (012) upper vibrational states were identified in the recorded spectra. As a result, 514 and 244 precise ro-vibrational energy levels were derived for the H218O and H217O molecules, respectively. High-order resonance perturbations between levels of the vibrational states involved were evidenced leading to the identification of a number of rotational levels of the (050) and (060) highly excited bending states. |
| Keywords: | Vibration-rotation spectroscopy Water vapor absorption Spectroscopic parameters |
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