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 / Peroxy radicals / Hydroperoxy HO2 and DO2 / HO2 / Nielsen(2002)_298K_240nm

DATAFILE: HO2_Nielsen(2002)_298K_240nm.txt
NAME: hydroperoxy radical
FORMULA: HO2
AUTHOR(YEAR): Nielsen(2002)
T: 298K
λ: 240nm
BIBLIOGRAPHY: O.J. Nielsen, M.S. Johnson, T.J. Wallington, L.K. Christensen, and J. Platz, "UV absorption cross sections of HO2, CH3O2, C2H5O2 and CH3C(O)CH2O2 radicals and mechanism of the reactions of F and Cl atoms with CH3C(O)CH3", Int. J. Chem. Kinet. 34, 283-291 (2002); DOI: 10.1002/kin.10037
COMMENTS: A pulse radiolysis (SF6/H2/O2 mixtures) transient UV-absorption spectroscopy setup has been used

Scaling to σ(CH3O2, 240nm) = (4.24 ± 0.27) ×10-18 cm2 molecule-1, recommended by

G.S. Tyndall, R.A. Cox, C. Granier, R. Lesclaux, G.K. Moortgat, M.J. Pilling, A.R. Ravishankara, and T.J. Wallington, "The atmospheric chemistry of small organic peroxy radicals," J. Geophys. Res. D 106, 12157-12182 (2001)

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