Infrared spectrum and global warming potential of SF5CF3

Ole John Nielsen; Flemming M. Nicolaisen; Camilla Bacher; Michael D. Hurley; Timothy J. Wallington; Keith P. Shine

doi:10.1016/S1352-2310(01)00551-9

Infrared spectrum and global warming potential of SF₅CF₃

Ole John Nielsen^*, Flemming M. Nicolaisen, Camilla Bacher, Michael D. Hurley, Timothy J. Wallington, Keith P. Shine

^*Corresponding author for this work

Department of Chemistry

31 Citations (Scopus)

Abstract

The infrared absorption spectrum of SF₅CF₃ was studied at 296 K over a more extensive wavenumber range (100-4000 cm^-1 using spectral resolutions of 0.01 and 0.90 cm^-1) than had previously been reported. There was no discernable effect of spectral resolution on the measured IR spectra. Over the region for which comparison can be made (700-1400 cm^-1) the absorption cross-sections were indistinguishable within the experimental uncertainties (±5%) from those reported by Sturges et al. (Science 289 (2000) 611). The absorption feature at 612.5 cm^-1 which was not reported by Sturges et al. (2000) was quantified in the present work. Inclusion of this feature increases the global-mean forcing due to SF₅CF₃ by about 3.5% to 0.59 W m^-2ppbv^-1 and reinforces the position of SF₅CF₃ as the most powerful greenhouse gas, per molecule, yet detected in the atmosphere. The 100-yr mass-normalized global warming potential of SF₅CF₃, relative to CO₂ is 19,000.

Original language	English
Journal	Atmospheric Environment
Volume	36
Issue number	7
Pages (from-to)	1237-1240
Number of pages	4
ISSN	1352-2310
DOIs	https://doi.org/10.1016/S1352-2310(01)00551-9
Publication status	Published - 27 Feb 2002

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title = "Infrared spectrum and global warming potential of SF5CF3",

abstract = "The infrared absorption spectrum of SF5CF3 was studied at 296 K over a more extensive wavenumber range (100-4000 cm-1 using spectral resolutions of 0.01 and 0.90 cm-1) than had previously been reported. There was no discernable effect of spectral resolution on the measured IR spectra. Over the region for which comparison can be made (700-1400 cm-1) the absorption cross-sections were indistinguishable within the experimental uncertainties (±5%) from those reported by Sturges et al. (Science 289 (2000) 611). The absorption feature at 612.5 cm-1 which was not reported by Sturges et al. (2000) was quantified in the present work. Inclusion of this feature increases the global-mean forcing due to SF5CF3 by about 3.5% to 0.59 W m-2ppbv-1 and reinforces the position of SF5CF3 as the most powerful greenhouse gas, per molecule, yet detected in the atmosphere. The 100-yr mass-normalized global warming potential of SF5CF3, relative to CO2 is 19,000.",

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T1 - Infrared spectrum and global warming potential of SF5CF3

AU - Nielsen, Ole John

AU - Nicolaisen, Flemming M.

AU - Bacher, Camilla

AU - Hurley, Michael D.

AU - Wallington, Timothy J.

AU - Shine, Keith P.

PY - 2002/2/27

Y1 - 2002/2/27

N2 - The infrared absorption spectrum of SF5CF3 was studied at 296 K over a more extensive wavenumber range (100-4000 cm-1 using spectral resolutions of 0.01 and 0.90 cm-1) than had previously been reported. There was no discernable effect of spectral resolution on the measured IR spectra. Over the region for which comparison can be made (700-1400 cm-1) the absorption cross-sections were indistinguishable within the experimental uncertainties (±5%) from those reported by Sturges et al. (Science 289 (2000) 611). The absorption feature at 612.5 cm-1 which was not reported by Sturges et al. (2000) was quantified in the present work. Inclusion of this feature increases the global-mean forcing due to SF5CF3 by about 3.5% to 0.59 W m-2ppbv-1 and reinforces the position of SF5CF3 as the most powerful greenhouse gas, per molecule, yet detected in the atmosphere. The 100-yr mass-normalized global warming potential of SF5CF3, relative to CO2 is 19,000.

AB - The infrared absorption spectrum of SF5CF3 was studied at 296 K over a more extensive wavenumber range (100-4000 cm-1 using spectral resolutions of 0.01 and 0.90 cm-1) than had previously been reported. There was no discernable effect of spectral resolution on the measured IR spectra. Over the region for which comparison can be made (700-1400 cm-1) the absorption cross-sections were indistinguishable within the experimental uncertainties (±5%) from those reported by Sturges et al. (Science 289 (2000) 611). The absorption feature at 612.5 cm-1 which was not reported by Sturges et al. (2000) was quantified in the present work. Inclusion of this feature increases the global-mean forcing due to SF5CF3 by about 3.5% to 0.59 W m-2ppbv-1 and reinforces the position of SF5CF3 as the most powerful greenhouse gas, per molecule, yet detected in the atmosphere. The 100-yr mass-normalized global warming potential of SF5CF3, relative to CO2 is 19,000.

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DO - 10.1016/S1352-2310(01)00551-9

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SN - 1352-2310

VL - 36

SP - 1237

EP - 1240

JO - Atmospheric Environment

JF - Atmospheric Environment

IS - 7

ER -

Infrared spectrum and global warming potential of SF₅CF₃

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