The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

www.uv-vis-spectral-atlas-mainz.org

Hannelore Keller-Rudek1, Geert K. Moortgat2, Rolf Sander2, Rüdiger Sörensen1

1Satellite Group

2Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany

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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

Cross Sections / Halogeno-alkanes+radicals / Fluoroalkanes / CH2F2(HFC-32) / SPARC(2013)_298K_121.567nm(rec)

DATAFILE: CH2F2(HFC-32)_SPARC(2013)_298K_121.567nm(rec).txt
NAME: difluoromethane
FORMULA: CH2F2(HFC-32)
AUTHOR(YEAR): SPARC(2013)
T: 298K
λ: 121.567nm(rec)
BIBLIOGRAPHY: J.B. Burkholder, W. Mellouki, E.L. Fleming, C. George, D.E. Heard, C.H. Jackman, M.J. Kurylo, V.L. Orkin, W.H. Swartz, and T.J. Wallington, "Evaluation of Atmospheric Loss Processes: Photochemistry Supplement", SPARC Lifetimes Report (2013) – SPARC Report No. 6, Chapter 3: Supplement 4, 3S4-1 - 3S4-52 (2013); www.sparc-climate.org/publications/sparc-reports/
COMMENTS: Recommended absorption cross section at the Lyman-α wavelength with an estimated uncertainty factor p(298 K) = 1.4

The value is an average of the results of

P. Sauvageau, R. Gilbert, P.P. Berlow, and C. Sandorfy, "Vacuum ultraviolet absorption spectra of fluoromethanes", J. Chem. Phys. 59, 762-765 (1973); DOI: 10.1063/1.1680086, and

D.P. Seccombe, R.Y.L. Chim, R.P. Tuckett, H.W. Jochims, and H. Baumgärtel, "Vacuum-ultraviolet absorption and fluorescence spectroscopy of CF2H2, CF2Cl2, and CF2Br2 in the range 8-22 eV", J. Chem. Phys. 114, 4058-4073 (2001); DOI: 10.1063/1.1344888

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