Helium broadening parameters of water vapor in the 10,200–11,200 cm−1 spectral region

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

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The He-broadening (γ) and shift (δ) coefficients of 76 rovibrational transitions belonging to the 3ν1, 3ν3, ν1 + 2ν2 + ν3, and 2ν1 + ν3 vibrational bands of H2O molecule were measured in the spectral range between 10,200 and 11,200 cm−1 with the spectral resolution of 0.01 cm−1 using a Bruker IFS 125HR FTIR spectrometer. The calculations of γ and δ were performed in the framework of the semi-classical method. It was shown that the vibrational dependence of the long-range as well as the short-range parts of an isotropic H2O-He interaction potential influence substantially the calculated broadening coefficients γ. The vibrationally and rotationally dependent analytical model for the broadening coefficients calculation is presented and discussed.

    Original languageEnglish
    Pages (from-to)60-65
    Number of pages6
    JournalJournal of Molecular Spectroscopy
    Volume331
    DOIs
    Publication statusPublished - 1 Jan 2017

    Fingerprint

    Helium
    Steam
    water vapor
    helium
    Spectral resolution
    coefficients
    Spectrometers
    Analytical models
    spectral resolution
    Molecules
    spectrometers
    shift
    molecules
    interactions

    ASJC Scopus subject areas

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

    Cite this

    Helium broadening parameters of water vapor in the 10,200–11,200 cm−1 spectral region. / Petrova, T. M.; Solodov, A. M.; Solodov, A. A.; Deichuli, V. M.; Starikov, V. I.

    In: Journal of Molecular Spectroscopy, Vol. 331, 01.01.2017, p. 60-65.

    Research output: Contribution to journalArticle

    Petrova, T. M. ; Solodov, A. M. ; Solodov, A. A. ; Deichuli, V. M. ; Starikov, V. I. / Helium broadening parameters of water vapor in the 10,200–11,200 cm−1 spectral region. In: Journal of Molecular Spectroscopy. 2017 ; Vol. 331. pp. 60-65.
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    AU - Deichuli, V. M.

    AU - Starikov, V. I.

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    AB - The He-broadening (γ) and shift (δ) coefficients of 76 rovibrational transitions belonging to the 3ν1, 3ν3, ν1 + 2ν2 + ν3, and 2ν1 + ν3 vibrational bands of H2O molecule were measured in the spectral range between 10,200 and 11,200 cm−1 with the spectral resolution of 0.01 cm−1 using a Bruker IFS 125HR FTIR spectrometer. The calculations of γ and δ were performed in the framework of the semi-classical method. It was shown that the vibrational dependence of the long-range as well as the short-range parts of an isotropic H2O-He interaction potential influence substantially the calculated broadening coefficients γ. The vibrationally and rotationally dependent analytical model for the broadening coefficients calculation is presented and discussed.

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