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Fermi resonances in the vibrational spectrum of perfluoroethane. / Golubkova, O.S.; Shchepkin, D.N.; Bertsev, V.V.; Sergeev, P.K.

In: Journal of Molecular Structure, 2015, p. 20-24.

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Golubkova, O.S. ; Shchepkin, D.N. ; Bertsev, V.V. ; Sergeev, P.K. / Fermi resonances in the vibrational spectrum of perfluoroethane. In: Journal of Molecular Structure. 2015 ; pp. 20-24.

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@article{0ba082db8d574cbaa52441a8b37da598,
title = "Fermi resonances in the vibrational spectrum of perfluoroethane",
abstract = "{\textcopyright} 2015 Elsevier B.V. All rights reserved.In this paper the Raman spectrum of liquid C2F6 in the spectral region 250-1500 cm-1 is presented. Data on six fundamental Raman bands of C2F6 are obtained. Doublets are observed in the spectral regions of the ν1 (A1g) (1416.3 cm-1, 1425.0 cm-1) and ν7 (Eg) (1221.9 cm-1, 1239.7 cm-1) fundamental bands. The structure of these bands is explained in terms of the Fermi resonances of ν7 ∼ (2ν8) ∼ (ν6 + ν11) (Eg) and ν1 ∼ (2ν6) (A1g) states. The values of the cubic potential energy constant K166 = 7.7 (2) cm-1 and the effective matrix element of a threefold interaction Weff = 8.5 (5) cm-1 were derived from the simultaneous processing of the doublet parameters in the Raman spectrum of liquid C2F6 and in the IR spectrum of C2F6 in liquid N2.",
author = "O.S. Golubkova and D.N. Shchepkin and V.V. Bertsev and P.K. Sergeev",
year = "2015",
doi = "10.1016/j.molstruc.2015.02.059",
language = "English",
pages = "20--24",
journal = "Journal of Molecular Structure",
issn = "0022-2860",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Fermi resonances in the vibrational spectrum of perfluoroethane

AU - Golubkova, O.S.

AU - Shchepkin, D.N.

AU - Bertsev, V.V.

AU - Sergeev, P.K.

PY - 2015

Y1 - 2015

N2 - © 2015 Elsevier B.V. All rights reserved.In this paper the Raman spectrum of liquid C2F6 in the spectral region 250-1500 cm-1 is presented. Data on six fundamental Raman bands of C2F6 are obtained. Doublets are observed in the spectral regions of the ν1 (A1g) (1416.3 cm-1, 1425.0 cm-1) and ν7 (Eg) (1221.9 cm-1, 1239.7 cm-1) fundamental bands. The structure of these bands is explained in terms of the Fermi resonances of ν7 ∼ (2ν8) ∼ (ν6 + ν11) (Eg) and ν1 ∼ (2ν6) (A1g) states. The values of the cubic potential energy constant K166 = 7.7 (2) cm-1 and the effective matrix element of a threefold interaction Weff = 8.5 (5) cm-1 were derived from the simultaneous processing of the doublet parameters in the Raman spectrum of liquid C2F6 and in the IR spectrum of C2F6 in liquid N2.

AB - © 2015 Elsevier B.V. All rights reserved.In this paper the Raman spectrum of liquid C2F6 in the spectral region 250-1500 cm-1 is presented. Data on six fundamental Raman bands of C2F6 are obtained. Doublets are observed in the spectral regions of the ν1 (A1g) (1416.3 cm-1, 1425.0 cm-1) and ν7 (Eg) (1221.9 cm-1, 1239.7 cm-1) fundamental bands. The structure of these bands is explained in terms of the Fermi resonances of ν7 ∼ (2ν8) ∼ (ν6 + ν11) (Eg) and ν1 ∼ (2ν6) (A1g) states. The values of the cubic potential energy constant K166 = 7.7 (2) cm-1 and the effective matrix element of a threefold interaction Weff = 8.5 (5) cm-1 were derived from the simultaneous processing of the doublet parameters in the Raman spectrum of liquid C2F6 and in the IR spectrum of C2F6 in liquid N2.

U2 - 10.1016/j.molstruc.2015.02.059

DO - 10.1016/j.molstruc.2015.02.059

M3 - Article

SP - 20

EP - 24

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

SN - 0022-2860

ER -

ID: 4001884