Articles | Volume 12, issue 23
https://doi.org/10.5194/acp-12-11753-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-12-11753-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
11 Dec 2012
Research article |
| 11 Dec 2012
Rate coefficients for the reaction of O(1D) with the atmospherically long-lived greenhouse gases NF3, SF5CF3, CHF3, C2F6, c-C4F8, n-C5F12, and n-C6F14
M. Baasandorj
Earth System Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309 USA
current address: Department of Soil, Water, and Climate, University of Minnesota, St. Paul, MN, 55108-6028, USA
B. D. Hall
Earth System Research Laboratory, Global Monitoring Division, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, USA
J. B. Burkholder
Earth System Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, USA
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Alexander Moravek, Jennifer G. Murphy, Amy Hrdina, John C. Lin, Christopher Pennell, Alessandro Franchin, Ann M. Middlebrook, Dorothy L. Fibiger, Caroline C. Womack, Erin E. McDuffie, Randal Martin, Kori Moore, Munkhbayar Baasandorj, and Steven S. Brown
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Erin E. McDuffie, Caroline C. Womack, Dorothy L. Fibiger, William P. Dube, Alessandro Franchin, Ann M. Middlebrook, Lexie Goldberger, Ben H. Lee, Joel A. Thornton, Alexander Moravek, Jennifer G. Murphy, Munkhbayar Baasandorj, and Steven S. Brown
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Martin K. Vollmer, François Bernard, Blagoj Mitrevski, L. Paul Steele, Cathy M. Trudinger, Stefan Reimann, Ray L. Langenfelds, Paul B. Krummel, Paul J. Fraser, David M. Etheridge, Mark A. J. Curran, and James B. Burkholder
Atmos. Chem. Phys., 19, 3481–3492, https://doi.org/10.5194/acp-19-3481-2019, https://doi.org/10.5194/acp-19-3481-2019, 2019
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Bradley D. Hall, Andrew M. Crotwell, Benjamin R. Miller, Michael Schibig, and James W. Elkins
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Alessandro Franchin, Dorothy L. Fibiger, Lexie Goldberger, Erin E. McDuffie, Alexander Moravek, Caroline C. Womack, Erik T. Crosman, Kenneth S. Docherty, William P. Dube, Sebastian W. Hoch, Ben H. Lee, Russell Long, Jennifer G. Murphy, Joel A. Thornton, Steven S. Brown, Munkhbayar Baasandorj, and Ann M. Middlebrook
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Dimitrios K. Papanastasiou, Allison Beltrone, Paul Marshall, and James B. Burkholder
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Martyn P. Chipperfield, Qing Liang, Matthew Rigby, Ryan Hossaini, Stephen A. Montzka, Sandip Dhomse, Wuhu Feng, Ronald G. Prinn, Ray F. Weiss, Christina M. Harth, Peter K. Salameh, Jens Mühle, Simon O'Doherty, Dickon Young, Peter G. Simmonds, Paul B. Krummel, Paul J. Fraser, L. Paul Steele, James D. Happell, Robert C. Rhew, James Butler, Shari A. Yvon-Lewis, Bradley Hall, David Nance, Fred Moore, Ben R. Miller, James W. Elkins, Jeremy J. Harrison, Chris D. Boone, Elliot L. Atlas, and Emmanuel Mahieu
Atmos. Chem. Phys., 16, 15741–15754, https://doi.org/10.5194/acp-16-15741-2016, https://doi.org/10.5194/acp-16-15741-2016, 2016
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James H. Butler, Shari A. Yvon-Lewis, Jurgen M. Lobert, Daniel B. King, Stephen A. Montzka, John L. Bullister, Valentin Koropalov, James W. Elkins, Bradley D. Hall, Lei Hu, and Yina Liu
Atmos. Chem. Phys., 16, 10899–10910, https://doi.org/10.5194/acp-16-10899-2016, https://doi.org/10.5194/acp-16-10899-2016, 2016
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This study was conducted to understand the influence of the ocean on the lifetime of atmospheric carbon tetrachloride, a strong, ozone-depleting gas. Data from 16 research cruises conducted between 1987 and 2010 show that, unlike the unreactive chlorofluorocarbons, carbon tetrachloride is undersaturated in surface waters regardless of temperature, wind, or biological regime, but with larger undersaturations with upwelling. Results suggest that the ocean consumes about 18 % of atmospheric CCl4.
Maxine E. Davis, François Bernard, Max R. McGillen, Eric L. Fleming, and James B. Burkholder
Atmos. Chem. Phys., 16, 8043–8052, https://doi.org/10.5194/acp-16-8043-2016, https://doi.org/10.5194/acp-16-8043-2016, 2016
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Chlorofluorocarbons, CFCs, are man-made compounds emitted into the atmosphere. Recently, several CFC compounds (CCl2FCCl2F (CFC-112), CCl3CClF2 (CFC-112a), CCl3CF3 (CFC-113a)) were observed in the atmosphere for the first time while their impact on stratospheric ozone and climate is presently not well characterized. In this study, the UV absorption spectra of these CFCs and CCl2FCF3 (CFC-114a) were measured, and an atmospheric model was used to evaluate their impacts on ozone and climate.
D. B. Millet, M. Baasandorj, D. K. Farmer, J. A. Thornton, K. Baumann, P. Brophy, S. Chaliyakunnel, J. A. de Gouw, M. Graus, L. Hu, A. Koss, B. H. Lee, F. D. Lopez-Hilfiker, J. A. Neuman, F. Paulot, J. Peischl, I. B. Pollack, T. B. Ryerson, C. Warneke, B. J. Williams, and J. Xu
Atmos. Chem. Phys., 15, 6283–6304, https://doi.org/10.5194/acp-15-6283-2015, https://doi.org/10.5194/acp-15-6283-2015, 2015
Short summary
Short summary
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M. Baasandorj, D. B. Millet, L. Hu, D. Mitroo, and B. J. Williams
Atmos. Meas. Tech., 8, 1303–1321, https://doi.org/10.5194/amt-8-1303-2015, https://doi.org/10.5194/amt-8-1303-2015, 2015
G. W. Santoni, B. C. Daube, E. A. Kort, R. Jiménez, S. Park, J. V. Pittman, E. Gottlieb, B. Xiang, M. S. Zahniser, D. D. Nelson, J. B. McManus, J. Peischl, T. B. Ryerson, J. S. Holloway, A. E. Andrews, C. Sweeney, B. Hall, E. J. Hintsa, F. L. Moore, J. W. Elkins, D. F. Hurst, B. B. Stephens, J. Bent, and S. C. Wofsy
Atmos. Meas. Tech., 7, 1509–1526, https://doi.org/10.5194/amt-7-1509-2014, https://doi.org/10.5194/amt-7-1509-2014, 2014
E. Saikawa, R. G. Prinn, E. Dlugokencky, K. Ishijima, G. S. Dutton, B. D. Hall, R. Langenfelds, Y. Tohjima, T. Machida, M. Manizza, M. Rigby, S. O'Doherty, P. K. Patra, C. M. Harth, R. F. Weiss, P. B. Krummel, M. van der Schoot, P. J. Fraser, L. P. Steele, S. Aoki, T. Nakazawa, and J. W. Elkins
Atmos. Chem. Phys., 14, 4617–4641, https://doi.org/10.5194/acp-14-4617-2014, https://doi.org/10.5194/acp-14-4617-2014, 2014
D. K. Papanastasiou, S. A. McKeen, and J. B. Burkholder
Atmos. Chem. Phys., 14, 3017–3025, https://doi.org/10.5194/acp-14-3017-2014, https://doi.org/10.5194/acp-14-3017-2014, 2014
B. D. Hall, A. Engel, J. Mühle, J. W. Elkins, F. Artuso, E. Atlas, M. Aydin, D. Blake, E.-G. Brunke, S. Chiavarini, P. J. Fraser, J. Happell, P. B. Krummel, I. Levin, M. Loewenstein, M. Maione, S. A. Montzka, S. O'Doherty, S. Reimann, G. Rhoderick, E. S. Saltzman, H. E. Scheel, L. P. Steele, M. K. Vollmer, R. F. Weiss, D. Worthy, and Y. Yokouchi
Atmos. Meas. Tech., 7, 469–490, https://doi.org/10.5194/amt-7-469-2014, https://doi.org/10.5194/amt-7-469-2014, 2014
B. W. LaFranchi, G. Pétron, J. B. Miller, S. J. Lehman, A. E. Andrews, E. J. Dlugokencky, B. Hall, B. R. Miller, S. A. Montzka, W. Neff, P. C. Novelli, C. Sweeney, J. C. Turnbull, D. E. Wolfe, P. P. Tans, K. R. Gurney, and T. P. Guilderson
Atmos. Chem. Phys., 13, 11101–11120, https://doi.org/10.5194/acp-13-11101-2013, https://doi.org/10.5194/acp-13-11101-2013, 2013
A. L. Ganesan, A. Chatterjee, R. G. Prinn, C. M. Harth, P. K. Salameh, A. J. Manning, B. D. Hall, J. Mühle, L. K. Meredith, R. F. Weiss, S. O'Doherty, and D. Young
Atmos. Chem. Phys., 13, 10633–10644, https://doi.org/10.5194/acp-13-10633-2013, https://doi.org/10.5194/acp-13-10633-2013, 2013
T. D. Thornberry, A. W. Rollins, R. S. Gao, L. A. Watts, S. J. Ciciora, R. J. McLaughlin, C. Voigt, B. Hall, and D. W. Fahey
Atmos. Meas. Tech., 6, 1461–1475, https://doi.org/10.5194/amt-6-1461-2013, https://doi.org/10.5194/amt-6-1461-2013, 2013
Related subject area
Subject: Gases | Research Activity: Laboratory Studies | Altitude Range: Stratosphere | Science Focus: Chemistry (chemical composition and reactions)
Technical note: A method for calculating offsets to ozone depletion and climate impacts of ozone-depleting substances
Measurement report: Radiative efficiencies of (CF3)2CFCN, CF3OCFCF2, and CF3OCF2CF3
UV spectroscopic determination of the chlorine monoxide (ClO) ∕ chlorine peroxide (ClOOCl) thermal equilibrium constant
Global warming potential estimates for the C1–C3 hydrochlorofluorocarbons (HCFCs) included in the Kigali Amendment to the Montreal Protocol
Heterogeneous reaction of ClONO2 with TiO2 and SiO2 aerosol particles: implications for stratospheric particle injection for climate engineering
UV and infrared absorption spectra, atmospheric lifetimes, and ozone depletion and global warming potentials for CCl2FCCl2F (CFC-112), CCl3CClF2 (CFC-112a), CCl3CF3 (CFC-113a), and CCl2FCF3 (CFC-114a)
Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection
Stable carbon isotope fractionation in the UV photolysis of CFC-11 and CFC-12
Trace gas fluxes of CO2, CH4 and N2O in a permanent grassland soil exposed to elevated CO2 in the Giessen FACE study
UV absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) between 210 and 350 K and the atmospheric implications
Gabrielle B. Dreyfus, Stephen A. Montzka, Stephen O. Andersen, and Richard Ferris
Atmos. Chem. Phys., 24, 2023–2032, https://doi.org/10.5194/acp-24-2023-2024, https://doi.org/10.5194/acp-24-2023-2024, 2024
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The Montreal Protocol has put the ozone layer on a path to recovery by phasing out 99 % of banned ozone-damaging substances. Most of these substances are also potent greenhouse gases. Atmospheric monitoring has detected unexpected increases in emissions in several of these banned substances. Here we present an approach for quantifying damage to ozone, climate and health for these emissions and offset by preventing the equivalent emissions of ozone-damaging substances.
Beni Adi Trisna, Seungnam Park, Injun Park, Jeongsoon Lee, and Jeong Sik Lim
Atmos. Chem. Phys., 23, 4489–4500, https://doi.org/10.5194/acp-23-4489-2023, https://doi.org/10.5194/acp-23-4489-2023, 2023
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An accurate estimate of radiative efficiency (RE) is substantial for an accurate assessment of global warming potential (GWP). In this study, we report accurate estimates of RE values of emerging greenhouse gases (GHGs) by using high-resolution Fourier transform infrared spectroscopy (FTIR). CF3OCFCF2 and CF3OCF2CF3 are reported for the first time. In addition, hidden errors in RE values of (CF3)2CFCN and CF3OCFCF2 in previous studies are pointed out.
J. Eric Klobas and David M. Wilmouth
Atmos. Chem. Phys., 19, 6205–6215, https://doi.org/10.5194/acp-19-6205-2019, https://doi.org/10.5194/acp-19-6205-2019, 2019
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The thermal equilibrium constant governing the partitioning of the chlorine monoxide radical (ClO) and its dimer, chlorine peroxide (ClOOCl), was measured by broadband UV spectroscopy in the temperature range of 228–301 K. Uncertainty in the value of this equilibrium constant produces significant uncertainty in model determinations of expected polar ozone loss extent. The key results of this study indicate that the currently recommended uncertainty for this reaction may be reduced.
Dimitrios K. Papanastasiou, Allison Beltrone, Paul Marshall, and James B. Burkholder
Atmos. Chem. Phys., 18, 6317–6330, https://doi.org/10.5194/acp-18-6317-2018, https://doi.org/10.5194/acp-18-6317-2018, 2018
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A lack of policy-relevant metrics for hydrochlorofluorocarbons (HCFCs) regulated in the Montreal Protocol is addressed by providing reliably estimated metrics for all HCFCs included in the protocol. This research provides reliable policy-relevant metrics (e.g., atmospheric lifetimes, ozone depletion and global warming potentials) based on well-established estimation methods. The results from this work provide the Montreal Protocol the information needed for informed policy decisions.
Mingjin Tang, James Keeble, Paul J. Telford, Francis D. Pope, Peter Braesicke, Paul T. Griffiths, N. Luke Abraham, James McGregor, I. Matt Watson, R. Anthony Cox, John A. Pyle, and Markus Kalberer
Atmos. Chem. Phys., 16, 15397–15412, https://doi.org/10.5194/acp-16-15397-2016, https://doi.org/10.5194/acp-16-15397-2016, 2016
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We have investigated for the first time the heterogeneous hydrolysis of ClONO2 on TiO2 and SiO2 aerosol particles at room temperature and at different relative humidities (RHs), using an aerosol flow tube. The kinetic data reported in our current and previous studies have been included in the UKCA chemistry–climate model to assess the impact of TiO2 injection on stratospheric chemistry and stratospheric ozone in particular.
Maxine E. Davis, François Bernard, Max R. McGillen, Eric L. Fleming, and James B. Burkholder
Atmos. Chem. Phys., 16, 8043–8052, https://doi.org/10.5194/acp-16-8043-2016, https://doi.org/10.5194/acp-16-8043-2016, 2016
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Chlorofluorocarbons, CFCs, are man-made compounds emitted into the atmosphere. Recently, several CFC compounds (CCl2FCCl2F (CFC-112), CCl3CClF2 (CFC-112a), CCl3CF3 (CFC-113a)) were observed in the atmosphere for the first time while their impact on stratospheric ozone and climate is presently not well characterized. In this study, the UV absorption spectra of these CFCs and CCl2FCF3 (CFC-114a) were measured, and an atmospheric model was used to evaluate their impacts on ozone and climate.
M. J. Tang, P. J. Telford, F. D. Pope, L. Rkiouak, N. L. Abraham, A. T. Archibald, P. Braesicke, J. A. Pyle, J. McGregor, I. M. Watson, R. A. Cox, and M. Kalberer
Atmos. Chem. Phys., 14, 6035–6048, https://doi.org/10.5194/acp-14-6035-2014, https://doi.org/10.5194/acp-14-6035-2014, 2014
A. Zuiderweg, J. Kaiser, J. C. Laube, T. Röckmann, and R. Holzinger
Atmos. Chem. Phys., 12, 4379–4385, https://doi.org/10.5194/acp-12-4379-2012, https://doi.org/10.5194/acp-12-4379-2012, 2012
M. Kaleem Abbasi and C. Müller
Atmos. Chem. Phys., 11, 9333–9342, https://doi.org/10.5194/acp-11-9333-2011, https://doi.org/10.5194/acp-11-9333-2011, 2011
N. Rontu Carlon, D. K. Papanastasiou, E. L. Fleming, C. H. Jackman, P. A. Newman, and J. B. Burkholder
Atmos. Chem. Phys., 10, 6137–6149, https://doi.org/10.5194/acp-10-6137-2010, https://doi.org/10.5194/acp-10-6137-2010, 2010
Cited articles
Aker, P. M., Niefer, B. I., Sloan, J. J., and Heydtmann, H.: The dynamics and microscopic kinetics of the reactions of O(1D2) atoms with CHCl3 and CHF3, J. Chem. Phys., 87, 203–209, 1987.
Arnold, T., Mühle, J., Salameh, P. K., Harth, C. M., Ivy, D. J., and Weiss, R. F.: Automated measurement of nitrogen trifluoride in ambient air, Anal. Chem., 84, 4798–4804, 2012.
Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, R. F., Hynes, R. G., Jenkin, M. E., Rossi, M. J., Troe, J., and Wallington, T. J.: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume IV – gas phase reactions of organic halogen species, Atmos. Chem. Phys., 8, 4141–4496, https://doi.org/10.5194/acp-8-4141-2008, 2008.
Baasandorj, M., Feierabend, K. J., and Burkholder, J. B.: Rate coefficients and ClO Radical Yields in the Reaction of O(1D) with CClF2CCl2F, CCl3CF3, CClF2CClF2, and CCl2FCF3, Int. J. Chem. Kinet., 43, 393–401, 2011.
Baasandorj, M., Knight, G., Papadimitriou, V. C., Talukdar, R. K., Ravishankara, A. R., and Burkholder, J. B.: Rate Coefficients for the Gas-Phase Reaction of the Hydroxyl Radical with CH2 = CHF and CH2 = CF2, J. Phys. Chem. A, 114, 4619–4633, 2010.
Blitz, M. A., Dillon, T. J., Heard, D. E., Pilling, M. J., and Trought, I. D.: Laser induced fluorescence studies of the reactions of O(1D2) with N2, O2, N2O, CH4, H2, CO2, Ar, Kr and n-C4H10, Phys. Chem. Chem. Phys., 6, 2162–2171, 2004.
Burks, T. L. and Lin, M. C.: The dynamics of formation of vibrationally excited HF in reactions of O(21D2) atoms with partially fluorinated alkanes, Int. J. Chem. Kinet., 13, 977–999, 1981.
Copeland, R. A., Wise, M. L., and Crosley, D. R.: Vibrational-energy transfer and quenching of OH(A$^{2}§igma^{+}$,v'=1), J. Phys. Chem., 92, 5710–5715, 1988.
Dillon, T. J., Vereecken, L., Horowitz, A., Khamaganov, V., Crowley, J. N., and Lelieveld, J.: Removal of the potent greenhouse gas NF3 by reactions with the atmospheric oxidants O(1D), OH and O3, Phys. Chem. Chem. Phys., 13, 18600–18608, 2011.
Dunlea, E. J. and Ravishankara, A. R.: Kinetic studies of the reactions of O(1D) with several atmospheric molecules, Phys. Chem. Chem. Phys., 6, 2152–2161, 2004.
Force, A. P. and Wiesenfeld, J. R.: Collisional Deactivation of O(lD2) by the Halomethanes. Direct Determination of Reaction Efficiency, J. Phys. Chem., 85, 782–785, 1981.
Hancock, G., Morrison, M., and Saunders, M.: Nascent vibrational distributions and relaxation rates of diatomic products of the reactions of O(1D) with CH4, C2H6, CH3F, CH2F2 and CHF3 studied by time resolved Fourier transform infrared emission, J. Photochem. and Photobio. A-Chemistry, 176, 191–198, 2005.
Ivy, D. J., Arnold, T., Harth, C. M., Steele, L. P., Rigby, M., Salameh, P. K., Leist, M., Krummel, P. B., Fraser, P. J., Weiss, R. F., and Prinn, R. G.: Atmospheric histories and growth trends of C4F10, C5F12, C6F14, C7F16 and C8F18, Atmos. Chem. Phys., 12, 4313–4325, https://doi.org/10.5194/acp-12-4313-2012, 2012.
Kendall, P. A., Mason, N. J., Buchanan, G. A., Marston, G., Tegeder, P., Dawes, A., Eden, S., Limao-Vieira, P., and Newnham, D. A.: Temperature dependent high-resolution infrared photoabsorption cross-sections of trifluoromethyl sulphur pentafluoride, Chem. Phys. Lett., 287, 137–142, 2003.
Kyoto Protocol to the United Nations Framework Convention on Climate Change., UNFCCC 1997, avialable at http://unfccc.int/kyoto_protocol/items/2830.php, 1997.
Molina, L. T., Woolridge, P. J., and Molina, M. J.: Atmospheric reactions and ultraviolet and infrared absorptivities of nitrogen trifluoride, Geophys. Res. Lett., 22, 1873–1876, 1995.
Nielsen, O. J., Nicolaisen, F. M., Bacher, C., Hurley, M. D., Wallington, T. J., Shine, K. P.: Infrared spectrum and global warming potential of SF5CF3, Atmos. Environ., 36, 1237–1240, 2002.
Oram, D. E., Mani, F. S., Laube, J. C., Newland, M. J., Reeves, C. E., Sturges, W. T., Penkett, S. A., Brenninkmeijer, C. A. M., Röckmann, T., and Fraser, P. J.: Long-term tropospheric trend of octafluorocyclobutane (c-C4F8 or PFC-318), Atmos. Chem. Phys., 12, 261–269, https://doi.org/10.5194/acp-12-261-2012, 2012.
Papadimitriou, V. C., Portmann, R. W., Fahey, D. W., Muhle, J., Weiss, R. F., and Burkholder, J. B.: Experimental and Theoretical Study of the Atmospheric Chemistry and Global Warming Potential of SO2F2, J. Phys. Chem. A, 112, 12657–12666, 2008a.
Papadimitriou, V. C., Talukdar, R. K., Portmann, R. W., Ravishankara, A. R., and Burkholder, J. B.: CF3CF=CH2 and (Z)-CF3CF=CHF: temperature dependent OH rate coefficients and global warming potentials, Phys. Chem. Chem. Phys., 10, 808–820, 2008b.
Ravishankara, A. R., Solomon, S., Turnipseed, A. A., and Warren, R. F.: Atmospheric lifetimes of long-lived halogenated species, Science, 259, 194–199, 1993.
Rinsland, C. P., Sharpe, S. W., and Sams, R. L.: Temperature-dependent absorption cross-sections in the thermal infrared bands of SF5CF3, J. Quant. Spectrosc. Rad. Trans., 82, 483–490, 2003.
Robson, J. I., Gohar, L. K., Hurley, M. D., Shine, K. P., and Wallington, T. J.: Revised IR spectrum, radiative efficiency and global warming potential of nitrogen trifluoride, Geophys. Res. Lett., 33, L10817, https://doi.org/10.1029/2006GL026210, 2006.
Sander, S. P., Abbatt, J., Barker, J. R., Burkholder, J. B., Friedl, R. R., Golden, D. M., Huie, R. E., Kolb, C. E., Kurylo, M. J., Moortgat, G. K., Orkin, V. L., and Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation Number 17, JPL Publication 10-6, Jet Propulsion Laboratory, California Institute of Technology, http://jpldataeval.jpl.nasa.gov, 2011.
Schmoltner, A. M., Talukdar, R. K., Warren, R. F., Mellouki, A., Goldfarb, L., Gierczak, T., McKeen, S. A., and Ravishankara, A. R.: Rate coefficients for reactions of several hydrofluorocarbons with OH and O(1D) their atmospheric lifetimes, J. Phys. Chem., 97, 8976–8982, 1993.
Sorokin, V. I., Gristan, N. P., and Chichinin, A. I.: Collisions of O(1D) with HF, F2, XeF2, NF3, and CF4: Deactivation and reaction, J. Chem. Phys., 108, 8995–9003, 1998.
Sturges, W. T., Oram, D. E., Laube, J. C., Reeves, C. E., Newland, M. J., Hogan, C., Martinerie, P., Witrant, E., Brenninkmeijer, C. A. M., Schuck, T. J., and Fraser, P. J.: Emissions halted of the potent greenhouse gas SF5CF3, Atmos. Chem. Phys., 12, 3653–3658, https://doi.org/10.5194/acp-12-3653-2012, 2012.
Sturges, W. T., Wallington, T. J., Hurley, M. D., Shine, K. P., Sihra, K., Engel, A., Oram, D. E., Penkett, S. A., Mulvaney, R., and Brenninkmeijer, C. A. M.: A potent greenhouse gas identified in the atmosphere: SF5CF3, Science, 289, 611–613, 2000.
WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2010, Global Ozone Research and Monitoring Project-Report No. 52, Geneva, Switzerland, 2011.
Zhao, Z., Laine, P. L., Nicovich, J. M., and Wine, P. H.: Reactive and non-reactive quenching of O(1D) by the potent greenhouse gases SO2F2, NF3, and SF5CF3, Proc. Natl. Acad. Sci., 107, 6610–6615, 2010.
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