High resolution study of the 3ν1 band of SO2

O. N. Ulenikov, E. S. Bekhtereva, V. M. Horneman, S. Alanko, O. V. Gromova

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44 Citations (Scopus)


The second overtone band 3ν1 of sulfur dioxide has been studied for the first time with high resolution rotation-vibration spectroscopy. About 3000 transitions involving about 900 upper state energy levels with Jmax. = 66 and Kamax. = 24 have been assigned to the 3ν1 band. In the analysis, an effective Hamiltonian taking into account accidental interactions between the vibrational states (3 0 0), (2 2 0), and (0 4 1) was used. The Watson operator in A-reduction and Ir representation was used in the diagonal blocks of the Hamiltonian. As the result of analysis a set of parameters reproducing the initial experimental data with the rms = 0.00028 cm-1 was obtained.

Original languageEnglish
Pages (from-to)111-121
Number of pages11
JournalJournal of Molecular Spectroscopy
Issue number2
Publication statusPublished - 1 Jun 2009


  • High-resolution spectra
  • Spectroscopic parameters
  • Sulfur dioxide

ASJC Scopus subject areas

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

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