Research output: Contribution to journal › Article › peer-review
FTIR Cryospectroscopic Study of Fermi Resonance Polyads ν s ≈ 2ν b in CHF3. / Меликова, Сона Меджидовна; Рутковский, Константин Станиславович; Щепкин, Дмитрий Николаевич; Macholl, Sven; Herrebout, Wouter A.
In: OPTICS AND SPECTROSCOPY, Vol. 129, No. 10, 2021, p. 1130-1137.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - FTIR Cryospectroscopic Study of Fermi Resonance Polyads ν s ≈ 2ν b in CHF3
AU - Меликова, Сона Меджидовна
AU - Рутковский, Константин Станиславович
AU - Щепкин, Дмитрий Николаевич
AU - Macholl, Sven
AU - Herrebout, Wouter A.
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd.
PY - 2021
Y1 - 2021
N2 - The sequences of Fermi resonances νs ≈ 2νb in the IR spectrum of a fluoroform solution (CHF3) in liquefied krypton have been studied. Here, νs is the CH-stretching vibration and νb is the bending vibration. It has been shown that it is necessary to use an extended set of spectroscopic parameters for the correct description of resonant multiplets at a high degree of vibrational excitation. Among other factors, it is necessary to consider the dependence of the anharmonic interaction constant αsbb on the vibrational quantum numbers. The conclusions are generalized for the arbitrary case of the CH-chromophore CHX3.
AB - The sequences of Fermi resonances νs ≈ 2νb in the IR spectrum of a fluoroform solution (CHF3) in liquefied krypton have been studied. Here, νs is the CH-stretching vibration and νb is the bending vibration. It has been shown that it is necessary to use an extended set of spectroscopic parameters for the correct description of resonant multiplets at a high degree of vibrational excitation. Among other factors, it is necessary to consider the dependence of the anharmonic interaction constant αsbb on the vibrational quantum numbers. The conclusions are generalized for the arbitrary case of the CH-chromophore CHX3.
KW - anharmonicity
KW - CH-chromophore
KW - CHF
KW - Fermi resonance
KW - fluoroform
UR - http://www.scopus.com/inward/record.url?scp=85122094644&partnerID=8YFLogxK
U2 - 10.1134/S0030400X21080129
DO - 10.1134/S0030400X21080129
M3 - Article
AN - SCOPUS:85122094644
VL - 129
SP - 1130
EP - 1137
JO - OPTICS AND SPECTROSCOPY
JF - OPTICS AND SPECTROSCOPY
SN - 0030-400X
IS - 10
ER -
ID: 91154423