Global fit of the high-resolution infrared spectrum of D2S

A. W. Liu, O. N. Ulenikov, G. A. Onopenko, O. V. Gromova, E. S. Bekhtereva, L. Wan, L. Y. Hao, S. M. Hu, J. M. Flaud

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)11-28
Number of pages18
JournalJournal of Molecular Spectroscopy
Issue number1
Publication statusPublished - 1 Jul 2006


  • DS isotopic species
  • Fundamental bands
  • Spectroscopic parameters
  • Vibration-rotation spectra

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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