Study of the H2O dipole moment and polarisability vibrational dependence by the analysis of rovibrational line shifts

V. I. Starikov, T. M. Petrova, A. M. Solodov, A. A. Solodov, V. M. Deichuli

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The study of the H2O dipole moment μ and polarisability α vibrational dependence is based on the comparison of experimental and calculated line shifts induced by argon, nitrogen, and air pressure in different H2O vibrational bands. Obtained dependence α on the stretching vibrations is in good agreement with the existing ab initio calculations in the literature, but the dependence α on the bending vibration is quite different. To clarify the dependence of μ and α on the bending vibration, the shifts of selected H2O lines of the 4ν2, 5ν2, and 6ν2 bands induced by argon, hydrogen and helium pressure are measured with the help of a Bruker IFS HR 125 spectrometer at room temperature with a spectral resolution of 0.01 cm−1. The comparison of experimental and calculated results with different values of μ and α line shifts is given.

    Original languageEnglish
    Pages (from-to)275-280
    Number of pages6
    JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
    Volume210
    DOIs
    Publication statusPublished - 5 Mar 2019

    Fingerprint

    Argon
    Dipole moment
    dipole moments
    Helium
    bending vibration
    Spectral resolution
    shift
    Stretching
    Spectrometers
    Hydrogen
    Nitrogen
    argon
    Air
    spectral resolution
    helium
    spectrometers
    nitrogen
    vibration
    Temperature
    air

    Keywords

    • Dipole moment and polarisability
    • Line shift
    • Water

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Atomic and Molecular Physics, and Optics
    • Instrumentation
    • Spectroscopy

    Cite this

    Study of the H2O dipole moment and polarisability vibrational dependence by the analysis of rovibrational line shifts. / Starikov, V. I.; Petrova, T. M.; Solodov, A. M.; Solodov, A. A.; Deichuli, V. M.

    In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 210, 05.03.2019, p. 275-280.

    Research output: Contribution to journalArticle

    Starikov, V. I. ; Petrova, T. M. ; Solodov, A. M. ; Solodov, A. A. ; Deichuli, V. M. / Study of the H2O dipole moment and polarisability vibrational dependence by the analysis of rovibrational line shifts. In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 2019 ; Vol. 210. pp. 275-280.
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    AU - Petrova, T. M.

    AU - Solodov, A. M.

    AU - Solodov, A. A.

    AU - Deichuli, V. M.

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