The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

https://www.uv-vis-spectral-atlas-mainz.org, https://uvvis.mpch-mainz.gwdg.de

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 / Organics (carbonyls) / Organic radicals / CH3C(O) / Parkes(1981)_298K_225nm(recalc)

DATAFILE: CH3C(O)_Parkes(1981)_298K_225nm(recalc).txt
NAME: acetyl radical
FORMULA: CH3C(O)
AUTHOR(YEAR): Parkes(1981)
T: 298K
λ: 225nm(recalc)
BIBLIOGRAPHY: D.A. Parkes, "The ultraviolet absorption spectra of the acetyl radical and the kinetics of the CH3 + CO reaction at room temperature", Chem. Phys. Lett. 77, 527-532 (1981); DOI: 10.1016/0009-2614(81)85201-3
COMMENTS: A value of σ (225 nm) = 1×10-17 cm2 molecule-1 was derived using the rate constant
k5 [CH3CO + CH3CO → (CH2CO)2] = 3×10-11 cm3 molecule-1 s-1

The lower value was derived by

C. Anastasi and P.R. Maw, "Reaction kinetics in acetyl chemistry over a wide range of temperature", J. Chem. Soc. Faraday Trans. I 78, 2423-2433 (1982): DOI: 10.1039/F19827802423,

using their result k5 = 1.3×10-11 cm3 molecule-1 s-1

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