When referring to the Spectral Atlas, please cite our publication:
Keller-Rudek, H., Moortgat, G. K., Sander, R., and Sörensen,
R.: The MPI-Mainz UV/VIS spectral atlas of gaseous molecules of
atmospheric interest, Earth Syst. Sci. Data, 5, 365–373, (2013),
DOI: 10.5194/essd-5-365-2013
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| DATAFILE: | (Z)-1,2-c-C4F6Cl2_Papadimitriou(2013)_296K_190-220nm(calc).txt |
| NAME: | (Z)-1,2-dichlorohexafluorocyclobutane |
| FORMULA: | (Z)-1,2-c-C4F6Cl2 |
| AUTHOR(YEAR): | Papadimitriou(2013) |
| T: | 296K |
| λ: | 190-220nm(calc) |
| BIBLIOGRAPHY: |
V.C. Papadimitriou, M.R. McGillen, S.S. Smith, A.M. Jubb, R.W. Portmann, B.D. Hall, E.L. Fleming, C.H. Jackman, and J.B. Burkholder, "1,2-Dichlorohexafluoro-cyclobutane (1,2-c-C4F6Cl2, R-316c) a potent ozone depleting substance and greenhouse gas: Atmospheric loss processes, lifetimes, and ozone depletion and global warming potentials for the (E) and (Z) stereoisomers",
J. Phys. Chem. A 117, 11049-11065 (2013);
DOI: 10.1021/jp407823k
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| COMMENTS: | The UV absorption spectra of the individual (E) and (Z) isomers were not measured directly but determined from a linear regression analysis of the measured spectra of the isomerically mixed samples and their mixing ratios Parameterization of the temperature dependence valid over the 190−225 nm wavelength range and 210−296 K temperature range:
log10 (σ(λ,T)) = ∑i Ai (λ - 200)i + (296 – T) ∑i Bi (λ - 200)i with the following parameters Ai and Bi:
------------------------------------------------
i Ai Bi
------------------------------------------------
0 -19.24 0.00155
1 -0.1037 -0.000761
2 0.00203 -1.22×10-5
3 4.9656×10-6 5.52×10-6
4 -1.65×10-5 -2.365×10-7
5 5.03×10-7 2.33×10-9
The absorption cross sections as plotted in Fig. 3 have been calculated using this parameterization
The parameterization has been recommended by
J. B. Burkholder, S. P. Sander, J. Abbatt, J. R. Barker, R. E. Huie, C. E. Kolb, M. J. Kurylo, V. L. Orkin, D. M. Wilmouth, and P. H. Wine "Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 18," JPL Publication 15-10, Jet Propulsion Laboratory, Pasadena, 2015 http://jpldataeval.jpl.nasa.gov |
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