Line Positions and Intensities of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 Bands of 16O3

S. Bouazza, A. Barbe, S. Mikhailenko, J. J. Plateaux

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A study of high-resolution (0.006 cm-1) Fourier transform absorption spectra of 16O3 around 3450 cm-1 has been performed, leading to the first analysis of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 bands of this molecule. To increase the absorption strength of these very weak bands a White cell with path lengths of up to 36 m and pressures from 40 to 55 Torr was used. The rotational energy levels of the (121) and (022) vibrational states deduced from observed spectra have been satisfactorily reproduced using a Hamiltonian matrix which takes explicitly into account the Coriolis interaction between (121) ↔ (022) and (121) ↔ (220) and Darling-Dennison interaction between (022) ↔ (220). Furthermore about 60 and 20 line intensities, respectively, for the (121) and (022) bands were measured with an accuracy of about 6 and 12%, leading to the determination of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 vibrational transition moments. Finally, a complete list of line positions, intensities, and lower state energies for both bands has been generated.

Original languageEnglish
Pages (from-to)365-371
Number of pages7
JournalJournal of Molecular Spectroscopy
Volume166
Issue number2
DOIs
Publication statusPublished - Aug 1994
Externally publishedYes

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Electron energy levels
Hamiltonians
Absorption spectra
Fourier transforms
Molecules
vibrational states
lists
energy levels
interactions
absorption spectra
moments
high resolution
cells
molecules
energy

ASJC Scopus subject areas

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

Cite this

Line Positions and Intensities of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 Bands of 16O3. / Bouazza, S.; Barbe, A.; Mikhailenko, S.; Plateaux, J. J.

In: Journal of Molecular Spectroscopy, Vol. 166, No. 2, 08.1994, p. 365-371.

Research output: Contribution to journalArticle

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N2 - A study of high-resolution (0.006 cm-1) Fourier transform absorption spectra of 16O3 around 3450 cm-1 has been performed, leading to the first analysis of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 bands of this molecule. To increase the absorption strength of these very weak bands a White cell with path lengths of up to 36 m and pressures from 40 to 55 Torr was used. The rotational energy levels of the (121) and (022) vibrational states deduced from observed spectra have been satisfactorily reproduced using a Hamiltonian matrix which takes explicitly into account the Coriolis interaction between (121) ↔ (022) and (121) ↔ (220) and Darling-Dennison interaction between (022) ↔ (220). Furthermore about 60 and 20 line intensities, respectively, for the (121) and (022) bands were measured with an accuracy of about 6 and 12%, leading to the determination of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 vibrational transition moments. Finally, a complete list of line positions, intensities, and lower state energies for both bands has been generated.

AB - A study of high-resolution (0.006 cm-1) Fourier transform absorption spectra of 16O3 around 3450 cm-1 has been performed, leading to the first analysis of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 bands of this molecule. To increase the absorption strength of these very weak bands a White cell with path lengths of up to 36 m and pressures from 40 to 55 Torr was used. The rotational energy levels of the (121) and (022) vibrational states deduced from observed spectra have been satisfactorily reproduced using a Hamiltonian matrix which takes explicitly into account the Coriolis interaction between (121) ↔ (022) and (121) ↔ (220) and Darling-Dennison interaction between (022) ↔ (220). Furthermore about 60 and 20 line intensities, respectively, for the (121) and (022) bands were measured with an accuracy of about 6 and 12%, leading to the determination of the ν1 + 2ν2 + ν3 and 2ν2 + 2ν3 vibrational transition moments. Finally, a complete list of line positions, intensities, and lower state energies for both bands has been generated.

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