High-resolution Fourier transform spectra of HDSe: The interacting states (v1 v2 v3)/(v1±1 v2∓2 v3) with 2v1+v2 = 1, 2, 3, and 4

O. N. Ulenikov, H. Bürger, W. Jerzembeck, G. A. Onopenko, E. A. Zhabina, O. L. Petrunina

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Abstract

For the first time, high-resolution Fourier transform spectra of HDSe in the region of the three polyads, v1/2v2, v1+v2/3v2, and 2v1/v1+2v2/v2+v3, have been recorded and analyzed. Combined with an earlier investigation of the v2 band, and including estimates for the unobserved `dark' 4v2 band, these levels were subjected to a `Global Fit,' which makes use of relations between parameters within the different polyads. Since there are five isotopic species present in natural HDMSe (M = 82, 80, 78, 77, 76), altogether 34 vibration-rotation bands have been studied in the present contribution. The parameters determined by the Global Fit reproduce upper vibrational-rotational energies of all these bands with accuracies close to experimental precision.

Original languageEnglish
Pages (from-to)229-248
Number of pages20
JournalJournal of Molecular Spectroscopy
Volume202
Issue number2
DOIs
Publication statusPublished - Aug 2000

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ASJC Scopus subject areas

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

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