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Global fit of the high-resolution infrared spectrum of D2S |
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| Authors: | A.-W. Liu G.A. Onopenko E.S. Bekhtereva L.-Y. Hao J.-M. Flaud |
| Affiliation: | a Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China b Laboratory of Molecular Spectroscopy, Physics Department, Tomsk State University, Tomsk 634050, Russia c LISA-UMR7583 CNRS, Universite Paris 12 et 7, 61 Av. du General de Gaulle, 94010 Creteil cedex, France |
| Abstract: | High-resolution Fourier-transform spectra of the D2S molecule in the regions of polyads of interacting vibrational states v = 3/2, 2, 5/2, 3 and 7/2 (v = v1 + v2/2 + v3) were recorded for the first time with a Bruker IFS 120 Fourier-transform interferometer and analysed. A global fit of all currently available rotation-vibration energies has been made for 22 vibrational states of the D2S molecule. The resulting set of 231 parameters reproduces all the initial experimental data (about 3670 vibration-rotation energies which correspond to more than 9700 ro-vibrational transitions with Jmax = 25) with accuracies close to the experimental uncertainties. |
| Keywords: | Vibration-rotation spectra D2S isotopic species Fundamental bands Spectroscopic parameters |
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