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 / Alkanes+alkyl radicals / Alkanes / CH4 / SouzaSrivastava(1996)_298K_12.4-124.0nm

DATAFILE: CH4_SouzaSrivastava(1996)_298K_12.4-124.0nm.txt
NAME: methane
FORMULA: CH4
AUTHOR(YEAR): SouzaSrivastava(1996)
T: 298K
λ: 12.4-124.0nm
BIBLIOGRAPHY: A.C.A Souza and S.K. Srivastava, "Photoabsorption cross sections of derived by the electron energy loss spectroscopy technique for ammonia, methane and acetylene in the photon energy range of 5 to 100 eV", J. Braz. Chem. Soc. 7, 91-95 (1996); DOI: 10.5935/0103-5053.19960012
COMMENTS: The electron energy loss spectrum (EELS) of CH4 measured in a crossed electron beam-molecular beam collision geometry has been converted to the photoabsorption spectrum, and the relative absorption cross sections have then been normalized to the absorption cross section at 86 nm reported by

J.A.R.Samson, G.N. Haddad, T. Masuoka, P.N. Pareek, and D.A.L. Kilcoyne, "Ionization yields, total absorption, and dissociative photoionization cross sections of CH4 from 110-950 Å", J. Chem. Phys. 90, 6925-6931 (1989); DOI: 10.1063/1.456267

Normalized absorption cross sections as listed in Table 2

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