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 / (CH3)3CC(O)O2 / Tomas(2000)_298K_200-275nm(smoo)

DATAFILE: (CH3)3CC(O)O2_Tomas(2000)_298K_200-275nm(smoo).txt
NAME: 2,2-dimethylpropionylperoxy radical, pivaloylperoxy radical
FORMULA: (CH3)3CC(O)O2
AUTHOR(YEAR): Tomas(2000)
T: 298K
λ: 200-275nm(smoo)
BIBLIOGRAPHY: A. Tomas, E. Villenave, and R. Lesclaux, "Kinetics of the (CH3)2CHCO and (CH3)3CCO radical decomposition: temperature and pressure dependences", Phys. Chem. Chem. Phys. 2, 1165-1174 (2000); DOI: 10.1039/A909377J
COMMENTS: Measurements by flash photolysis of Br2/(CH3)3CCHO/O2 mixtures coupled to UV absorption spectrometry

Smooth fit of the measured values using the double gaussian function

σ(in 10-18 cm2 molecule-1) =
5.6 × exp {-243.2 [ln(204.9/λ)]2} + 3.3 × exp {-52.7 [ln(236.1/λ)]2}

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