Analysis of highly excited 'hot' bands in the SO₂ molecule: 2v₂ + 3v₃ - 2v₁ and 2v₁ + v ₂ + v₃ - v₂

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

Research School of High-Energy Physics

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Abstract

We set up a variational procedure of assignments of transitions and we applied it to the analysis very weak 'hot' bands, 2 + 33 - 2 and 21 + 2 + 3 - 2, of the SO2 molecule. As the first step of the study, the 'cold' bands, 33 and 21 + 3, are re-analysed and transitions belonging to those bands are assigned up to the values of quantum numbers Jmax. = 60, [image omitted], and Jmax. = 69, [image omitted] for the bands 33 and 21 + 3, respectively. After 'cleaning' the experimental spectrum from transitions belonging to the 33 and 21 + 3 bands, a variational procedure was used that allowed us to assign 230 and 115 transitions with the values of quantum numbers Jmax. = 35, [image omitted], and Jmax. = 26, [image omitted] for the bands 2 + 33 - 2 and 21 + 2 + 3 - 2, respectively. The sets of spectroscopic parameters obtained by fitting the assigned experimental transitions reproduce the initial experimental data with an accuracy close to experimental uncertainties.

Original language	English
Pages (from-to)	1253-1261
Number of pages	9
Journal	Molecular Physics
Volume	108
Issue number	10
DOIs	https://doi.org/10.1080/00268970903468297
Publication status	Published - 1 Jan 2010

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Keywords

High-resolution spectra
Spectroscopic parameters
Sulphur dioxide

ASJC Scopus subject areas

Biophysics
Molecular Biology
Condensed Matter Physics
Physical and Theoretical Chemistry

Cite this

Ulenikov, O. N., Bekhtereva, E. S., Gromova, O. V., Alanko, S., Horneman, V. M., & Leroy, C. (2010). Analysis of highly excited 'hot' bands in the SO₂ molecule: 2v₂ + 3v₃ - 2v₁ and 2v₁ + v ₂ + v₃ - v₂. Molecular Physics, 108(10), 1253-1261. https://doi.org/10.1080/00268970903468297

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abstract = "We set up a variational procedure of assignments of transitions and we applied it to the analysis very weak 'hot' bands, 2 + 33 - 2 and 21 + 2 + 3 - 2, of the SO2 molecule. As the first step of the study, the 'cold' bands, 33 and 21 + 3, are re-analysed and transitions belonging to those bands are assigned up to the values of quantum numbers Jmax. = 60, [image omitted], and Jmax. = 69, [image omitted] for the bands 33 and 21 + 3, respectively. After 'cleaning' the experimental spectrum from transitions belonging to the 33 and 21 + 3 bands, a variational procedure was used that allowed us to assign 230 and 115 transitions with the values of quantum numbers Jmax. = 35, [image omitted], and Jmax. = 26, [image omitted] for the bands 2 + 33 - 2 and 21 + 2 + 3 - 2, respectively. The sets of spectroscopic parameters obtained by fitting the assigned experimental transitions reproduce the initial experimental data with an accuracy close to experimental uncertainties.",

keywords = "High-resolution spectra, Spectroscopic parameters, Sulphur dioxide",

author = "Ulenikov, {O. N.} and Bekhtereva, {E. S.} and Gromova, {O. V.} and S. Alanko and Horneman, {V. M.} and C. Leroy",

year = "2010",

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AU - Gromova, O. V.

AU - Alanko, S.

AU - Horneman, V. M.

AU - Leroy, C.

PY - 2010/1/1

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N2 - We set up a variational procedure of assignments of transitions and we applied it to the analysis very weak 'hot' bands, 2 + 33 - 2 and 21 + 2 + 3 - 2, of the SO2 molecule. As the first step of the study, the 'cold' bands, 33 and 21 + 3, are re-analysed and transitions belonging to those bands are assigned up to the values of quantum numbers Jmax. = 60, [image omitted], and Jmax. = 69, [image omitted] for the bands 33 and 21 + 3, respectively. After 'cleaning' the experimental spectrum from transitions belonging to the 33 and 21 + 3 bands, a variational procedure was used that allowed us to assign 230 and 115 transitions with the values of quantum numbers Jmax. = 35, [image omitted], and Jmax. = 26, [image omitted] for the bands 2 + 33 - 2 and 21 + 2 + 3 - 2, respectively. The sets of spectroscopic parameters obtained by fitting the assigned experimental transitions reproduce the initial experimental data with an accuracy close to experimental uncertainties.

AB - We set up a variational procedure of assignments of transitions and we applied it to the analysis very weak 'hot' bands, 2 + 33 - 2 and 21 + 2 + 3 - 2, of the SO2 molecule. As the first step of the study, the 'cold' bands, 33 and 21 + 3, are re-analysed and transitions belonging to those bands are assigned up to the values of quantum numbers Jmax. = 60, [image omitted], and Jmax. = 69, [image omitted] for the bands 33 and 21 + 3, respectively. After 'cleaning' the experimental spectrum from transitions belonging to the 33 and 21 + 3 bands, a variational procedure was used that allowed us to assign 230 and 115 transitions with the values of quantum numbers Jmax. = 35, [image omitted], and Jmax. = 26, [image omitted] for the bands 2 + 33 - 2 and 21 + 2 + 3 - 2, respectively. The sets of spectroscopic parameters obtained by fitting the assigned experimental transitions reproduce the initial experimental data with an accuracy close to experimental uncertainties.

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Access to Document

10.1080/00268970903468297