N2Broadening in the13C16O 2–0 Band around 4167 cm−1

Voigt, S.; Dreher, Sabine; Orphal, J.; Burrows, J. P.

doi:10.1006/jmsp.1996.0259

Cited by 12 publications

(8 citation statements)

References 5 publications

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“…In the last 40 years, there have been few laboratory measurements of the broadening [1][2][3][4][5][6] and shifting 3,6 of the first overtone, P and R branch lines of pure CO or perturbed by N 2 . Plyler and Thibault 7 have summarized the very early measurements of self-broadening.…”

Section: Introductionmentioning

confidence: 99%

Broadening, shifting, and line asymmetries in the 2←0 band of CO and CO–N2: Experimental results and theoretical calculations

Predoi‐Cross

Bouanich

Benner

et al. 2000

The Journal of Chemical Physics

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We have measured the room temperature, widths, pressure shifts, and line asymmetry coefficients for many transitions of the first overtone band of CO and CO perturbed by N 2. The broadening coefficients were obtained with an accuracy of about 1%. The pure CO profiles have been fitted by a Voigt profile while the CON 2 spectral profiles have been fitted with a Lorentz and an empirical line shape model (HC v) that blends together a hard collision model and a speed-dependent Lorentz profile. In addition to the Voigt, Lorentz, and HC v models, we have added a dispersion profile to account for weak line mixing. The line broadening and shift coefficients are compared to semiclassical calculations employing a variety of intermolecular interactions. The line asymmetry results are compared to line mixing calculations based on the energy corrected sudden ͑ECS͒ model. The results indicate that effects other than line mixing also contribute to the measured line asymmetry.

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Section: Introductionmentioning

confidence: 99%

Broadening, shifting, and line asymmetries in the 2←0 band of CO and CO–N2: Experimental results and theoretical calculations

Predoi‐Cross

Bouanich

Benner

et al. 2000

The Journal of Chemical Physics

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“…Recently, the first analysis of the nitrogen broadening of 13 C 16 O lines in the (2 4 0) band using a Fourier Transform Spectrometer were carried out by Voigt et al (14). The broadening coefficients given in this work are on average 6% smaller than those given for 12 (5,6,9,11) can be stated.…”

Section: Introductionmentioning

confidence: 94%

“…In all the experiments only small deviations between measured and predicted Voigt profiles were observed. If pronounced discrepancies occurred, more complex line profiles, which include the Dicke effect (low pressure region) and the speed dependence effect (high pressure, heavier buffer gases) would have to be taken into account (29,30 the case of collisions between CO and N 2 Voigt et al (14) estimated that the deviations between Voigt and Galatry profiles would be less than 2% in the line center. In the pressure range under study with the resolution and signal-to-noise ratio we have, the Voigt profile seems to be a good approximation for carbon monoxide lines.…”

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confidence: 99%

Line Shift Investigations for Different Isotopomers of Carbon Monoxide

Sumpf

Burrows

Kissel

et al. 1998

Journal of Molecular Spectroscopy

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“…The data on CO linebroadening and shifting coefficients are included in the spectroscopic database HITRAN. Numerous studies were made for the line shape parameters of CO in mixtures with various atmospheric gases (see Refs [200][201][202][203][204][205][206][207][208][209][210][211][212][213][214][215][216][217]. The fundamental band line shapes of CO-N 2 were experimentally studied in Refs [200][201][202].…”

Section: Co Moleculementioning

confidence: 99%

“…Profile T The 2-0 band of CO-N 2 was studied in Refs [203,204]. Predoi-Cross et al [204] obtained line-broadening, line-shifting and asymmetry coefficients Y m .…”

Section: Co Moleculementioning

confidence: 99%

Pressure broadening and shifting of vibrotational lines of atmospheric gases

Buldyreva¹,

Lavrentieva²,

Starikov³

2010

Collisional Line Broadening and Shifting of Atmospheric Gases

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Water vapour is one of the strongest absorbers of radiation in the Earth's atmosphere, but some other gases also play an important role in the atmospheric radiative transfer processes: carbon dioxide CO 2 , carbon monoxide CO, ozone О 3 , methane CH 4 . Minor atmospheric pollutants such as hydrogen sulphide H 2 S, methyl fluoride CH 3 F, methyl chloride CH 3 Cl, ethylene C 2 H 4 , nitric oxide NO, nitrous oxide N 2 O and nitrogen dioxide NO 2 are equally recognised for their implication in the fundamental chemical reactions occurring in the terrestrial atmosphere. As a consequence, a lot of spectroscopic studies are made for these molecules in order to obtain the line positions, intensities and widths. They are briefly summarised below, starting by asymmetric waterlike molecules of X 2 Y-type which have the same selection rules for vibrotational spectra. Vibrotational lines of asymmetric X 2 Y moleculesBetween asymmetric tops of the X 2 Y type most attention in the spectroscopic literature is paid to the H 2 S, SO 2 , O 3 and NO 2 molecules. _________________________________________________________________ A vibrotational state (v 1 v 2 v 3 ) [J K a K c ] of these molecules is characterised by three vibrational quantum numbers v 1 , v 2 , v 3 and three rotational quantum numbers J, K a , K c . In the NO 2 molecule, having an unpaired electron (total electronic spin S = 1/2), each vibrotational level is split by the spin-rotational interaction into two components (J = N ± S) denoted by + or -, and the three rotational quantum numbers are N, K a , K c . For a given set of vibrotational quantum numbers the corresponding energies are obtained by a diagonalization of the effective Hamiltonian matrix of Eq. (3.

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N2Broadening in the13C16O 2–0 Band around 4167 cm−1

Cited by 12 publications

References 5 publications

Broadening, shifting, and line asymmetries in the 2←0 band of CO and CO–N2: Experimental results and theoretical calculations

Broadening, shifting, and line asymmetries in the 2←0 band of CO and CO–N2: Experimental results and theoretical calculations

Line Shift Investigations for Different Isotopomers of Carbon Monoxide

Pressure broadening and shifting of vibrotational lines of atmospheric gases

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