High-resolution infrared spectroscopy of the interacting v9, v5 + v6 and 3v6 levels of CH279BrF

R. Visinoni; A. Baldacci; R. Wugt Larsen

doi:10.1016/j.jms.2011.07.006

High-resolution infrared spectroscopy of the interacting v₉, v₅ + v₆ and 3v₆ levels of CH₂⁷⁹BrF

R. Visinoni, A. Baldacci, R. Wugt Larsen

Kemisk Institut

1 Citationer (Scopus)

Abstract

The high-resolution (0.0030 cm(-1)) Fourier transform infrared spectrum of (CH2BrF)-Br-79 has been studied in part of the atmospheric window between 910 and 980 cm(-1), the region of the v(9) (935.847 cm(-1)) and V-5 + v(6) (961.239 cm(-1)) bands. The v9 fundamental consists of a pseudo a-type band induced by Coriolis coupling with v(5) + v(6), in turn exhibiting a predominant a-type structure. Several interactions connecting these levels and the dark state 3v(6) have been assessed. The whole data set is treated using Watson's A-reduced Hamiltonian in the 1(r) representation implemented with first order a- and b- and c-type Coriolis terms. A detailed analysis of the rotational structure yields a set of accurate upper-state parameters up to quartic distortion terms for v(9) and v(5) + v(6). In addition, spectroscopic information about the dark ternary overtone of v(6) has been obtained. (C) 2011 Elsevier Inc. All rights reserved.

Originalsprog	Engelsk
Tidsskrift	Journal of Molecular Spectroscopy
Vol/bind	269
Udgave nummer	2
Sider (fra-til)	226-230
Antal sider	5
ISSN	0022-2852
DOI	https://doi.org/10.1016/j.jms.2011.07.006
Status	Udgivet - okt. 2011

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10.1016/j.jms.2011.07.006

Citationsformater

@article{a03677d5da7149ba91cc0ffcc8660b81,

title = "High-resolution infrared spectroscopy of the interacting v9, v5 + v6 and 3v6 levels of CH279BrF",

abstract = "The high-resolution (0.0030 cm-1) Fourier transform infrared spectrum of CH279BrF has been studied in part of the atmospheric window between 910 and 980 cm-1, the region of the ν9 (935.847 cm-1) and ν5 + ν6 (961.239 cm-1) bands. The ν9 fundamental consists of a pseudo a-type band induced by Coriolis coupling with ν5 + ν6, in turn exhibiting a predominant a-type structure. Several interactions connecting these levels and the dark state 3ν6 have been assessed. The whole data set is treated using Watson's A-reduced Hamiltonian in the Ir representation implemented with first order a- and b- and c-type Coriolis terms. A detailed analysis of the rotational structure yields a set of accurate upper-state parameters up to quartic distortion terms for ν9 and ν5 + ν6. In addition, spectroscopic information about the dark ternary overtone of ν6 has been obtained.",

author = "R. Visinoni and A. Baldacci and Larsen, {R. Wugt}",

year = "2011",

month = oct,

doi = "10.1016/j.jms.2011.07.006",

language = "English",

volume = "269",

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journal = "Journal of Molecular Spectroscopy",

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TY - JOUR

T1 - High-resolution infrared spectroscopy of the interacting v9, v5 + v6 and 3v6 levels of CH279BrF

AU - Visinoni, R.

AU - Baldacci, A.

AU - Larsen, R. Wugt

PY - 2011/10

Y1 - 2011/10

N2 - The high-resolution (0.0030 cm-1) Fourier transform infrared spectrum of CH279BrF has been studied in part of the atmospheric window between 910 and 980 cm-1, the region of the ν9 (935.847 cm-1) and ν5 + ν6 (961.239 cm-1) bands. The ν9 fundamental consists of a pseudo a-type band induced by Coriolis coupling with ν5 + ν6, in turn exhibiting a predominant a-type structure. Several interactions connecting these levels and the dark state 3ν6 have been assessed. The whole data set is treated using Watson's A-reduced Hamiltonian in the Ir representation implemented with first order a- and b- and c-type Coriolis terms. A detailed analysis of the rotational structure yields a set of accurate upper-state parameters up to quartic distortion terms for ν9 and ν5 + ν6. In addition, spectroscopic information about the dark ternary overtone of ν6 has been obtained.

AB - The high-resolution (0.0030 cm-1) Fourier transform infrared spectrum of CH279BrF has been studied in part of the atmospheric window between 910 and 980 cm-1, the region of the ν9 (935.847 cm-1) and ν5 + ν6 (961.239 cm-1) bands. The ν9 fundamental consists of a pseudo a-type band induced by Coriolis coupling with ν5 + ν6, in turn exhibiting a predominant a-type structure. Several interactions connecting these levels and the dark state 3ν6 have been assessed. The whole data set is treated using Watson's A-reduced Hamiltonian in the Ir representation implemented with first order a- and b- and c-type Coriolis terms. A detailed analysis of the rotational structure yields a set of accurate upper-state parameters up to quartic distortion terms for ν9 and ν5 + ν6. In addition, spectroscopic information about the dark ternary overtone of ν6 has been obtained.

U2 - 10.1016/j.jms.2011.07.006

DO - 10.1016/j.jms.2011.07.006

M3 - Journal article

SN - 0022-2852

VL - 269

SP - 226

EP - 230

JO - Journal of Molecular Spectroscopy

JF - Journal of Molecular Spectroscopy

IS - 2

ER -

High-resolution infrared spectroscopy of the interacting v9, v5 + v6 and 3v6 levels of CH279BrF

Abstract

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Citationsformater

High-resolution infrared spectroscopy of the interacting v₉, v₅ + v₆ and 3v₆ levels of CH₂⁷⁹BrF