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Vibrational shifts of absorption bands of linear molecules diluted in high-density rare gases : Measurements and modeling for CO2-Rg and OCS-Rg. / Troitsyna, L.; Asfin, R.; Gennadiev, N.; Buldyreva, J.; Filippov, N.

In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 246, 106935, 05.2020.

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@article{9dca3c5a0b664cd1b8c7e9731f2e5490,
title = "Vibrational shifts of absorption bands of linear molecules diluted in high-density rare gases: Measurements and modeling for CO2-Rg and OCS-Rg",
abstract = "Increase of buffer gas pressure causes redistribution of intensity in the IR absorption bands and, indicating the presence of vibrational perturbation, changes the first spectral moment value responsible for the band-origin position. Band-origin shift coefficients for the ν3, 2ν3 and ν2 bands of OCS and the ν3 band of CO2 diluted in high-density Ar, Kr and Xe are measured and calculated by two methods: directly with available in the literature vibrationally dependent potential-energy surfaces for both initial and final vibrational states and assuming that vibrational dependence arises from the interaction of the permanent /transient dipole moment of the absorbing molecule and the dipole moment induced on the perturber. A comparative analysis of results is given, showing a general underestimation of calculations with respect to measurements.",
keywords = "Band-origin shift, Carbon dioxide, Carbonyl sulfide, DID model, Infrared absorption spectra, Rare gases, Spectral moments, Vibrational dependence, COMPLEX, H2O, MICROWAVE, COLLISION, XE-CO2, AR, INFRARED-SPECTRA, POTENTIAL-ENERGY SURFACE",
author = "L. Troitsyna and R. Asfin and N. Gennadiev and J. Buldyreva and N. Filippov",
year = "2020",
month = may,
doi = "10.1016/j.jqsrt.2020.106935",
language = "English",
volume = "246",
journal = "Journal of Quantitative Spectroscopy and Radiative Transfer",
issn = "0022-4073",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Vibrational shifts of absorption bands of linear molecules diluted in high-density rare gases

T2 - Measurements and modeling for CO2-Rg and OCS-Rg

AU - Troitsyna, L.

AU - Asfin, R.

AU - Gennadiev, N.

AU - Buldyreva, J.

AU - Filippov, N.

PY - 2020/5

Y1 - 2020/5

N2 - Increase of buffer gas pressure causes redistribution of intensity in the IR absorption bands and, indicating the presence of vibrational perturbation, changes the first spectral moment value responsible for the band-origin position. Band-origin shift coefficients for the ν3, 2ν3 and ν2 bands of OCS and the ν3 band of CO2 diluted in high-density Ar, Kr and Xe are measured and calculated by two methods: directly with available in the literature vibrationally dependent potential-energy surfaces for both initial and final vibrational states and assuming that vibrational dependence arises from the interaction of the permanent /transient dipole moment of the absorbing molecule and the dipole moment induced on the perturber. A comparative analysis of results is given, showing a general underestimation of calculations with respect to measurements.

AB - Increase of buffer gas pressure causes redistribution of intensity in the IR absorption bands and, indicating the presence of vibrational perturbation, changes the first spectral moment value responsible for the band-origin position. Band-origin shift coefficients for the ν3, 2ν3 and ν2 bands of OCS and the ν3 band of CO2 diluted in high-density Ar, Kr and Xe are measured and calculated by two methods: directly with available in the literature vibrationally dependent potential-energy surfaces for both initial and final vibrational states and assuming that vibrational dependence arises from the interaction of the permanent /transient dipole moment of the absorbing molecule and the dipole moment induced on the perturber. A comparative analysis of results is given, showing a general underestimation of calculations with respect to measurements.

KW - Band-origin shift

KW - Carbon dioxide

KW - Carbonyl sulfide

KW - DID model

KW - Infrared absorption spectra

KW - Rare gases

KW - Spectral moments

KW - Vibrational dependence

KW - COMPLEX

KW - H2O

KW - MICROWAVE

KW - COLLISION

KW - XE-CO2

KW - AR

KW - INFRARED-SPECTRA

KW - POTENTIAL-ENERGY SURFACE

UR - http://www.scopus.com/inward/record.url?scp=85081119660&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/9e4a7e22-ee21-3574-8fe5-77155171b5ae/

U2 - 10.1016/j.jqsrt.2020.106935

DO - 10.1016/j.jqsrt.2020.106935

M3 - Article

AN - SCOPUS:85081119660

VL - 246

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

SN - 0022-4073

M1 - 106935

ER -

ID: 52314405