MPG

The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

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

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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 / Hypohalides+oxy acids of halogens / CH3OCl / IUPAC(2008)_295K_200-460nm(rec)

DATAFILE: CH3OCl_IUPAC(2008)_295K_200-460nm(rec).txt
NAME: methyl hypochlorite
FORMULA: CH3OCl
AUTHOR(YEAR): IUPAC(2008)
T: 295K
λ: 200-460nm(rec)
BIBLIOGRAPHY: R. Atkinson, D.L. Baulch, R.A. Cox, J.N. Crowley, R.F. Hampson, R.G. Hynes, M.E. Jenkin, M.J. Rossi, J. Troe, and T.J. Wallington, "Evaluated kinetic and photochemical data for atmospheric chemistry: Volume IV - gas phase reactions of organic halogen species", Atmos. Chem. Phys. 8, 4141-4496 (2008); DOI: 10.5194/acp-8-4141-2008
COMMENTS: IUPAC(2008) recommendation:

There is very good agreement between the cross sections presented in the studies of

J.N. Crowley, F. Helleis, R. Müller, G.K. Moortgat, P.J. Crutzen, and J.J. Orlando, "CH3OCl: UV/visible absorption cross sections, J values and atmospheric significance," J. Geophys. Res. 99(D10), 20683-20688 (1994); DOI: 10.1029/94JD01829, and

T.P.W. Jungkamp, U. Kirchner, M. Schmidt, and R.N. Schindler, "UV-absorption cross section data for the hypochlorites ROCl (R = H, CH3, C2H5, i-C3H7, t-C4H9)," J. Photochem. Photobiol. 91, 1-6 (1995); DOI: 10.1016/1010-6030(95)04074-P,

for λ ≥ 260 nm, though some differences are observed at the short wavelength end of the spectra.
The data of Crowley et al., which cover a larger wavelength range and extent further into the actinic region, are preferred

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