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 / Acylperoxy / CH3C(O)O2 / MaricqSzente(1996)_295K_183-300nm

DATAFILE: CH3C(O)O2_MaricqSzente(1996)_295K_183-300nm.txt
NAME: acetylperoxy radical
FORMULA: CH3C(O)O2
AUTHOR(YEAR): MaricqSzente(1996)
T: 295K
λ: 183-300nm
BIBLIOGRAPHY: M.M. Maricq and J.J. Szente, "The CH3C(O)O2 radical. Its UV spectrum, self-reaction kinetics, and reaction with CH3O2", J. Phys. Chem. 100, 4507-4513 (1996); DOI: 10.1021/jp9533234
COMMENTS: Flash photolysis of Cl2 in the presence of acetaldehyde and oxygen combined with time-resolved UV spectroscopy

Gaussian fit: Absorption cross sections have been calculated using the equation

σ(λ) = σ1m exp(-α1[ln(λ1m/λ)]2 + σ2m exp(-α2[ln(λ2m/λ)]2

with the parameters
σ1m = 6.5×10-18 cm2 molecule-1 σ2m = 2.9×10-18 cm2 molecule-1
α1 = 119             α2 = 81
λ1m = 206 nm          λ2m = 250 nm

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