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 / ClCO / Chao(2025)_236-294K_223nm

DATAFILE: ClCO_Chao(2025)_236-294K_223nm.txt
NAME: chloroformyl radical
FORMULA: ClCO
AUTHOR(YEAR): Chao(2025)
T: 236-294K
λ: 223nm
BIBLIOGRAPHY: W. Chao, R.Skog, B.N. Frandsen, G.H. Jones, K.T. Pham, M. Okumura, M.P. Sulbaek Andersen, C.J. Percival, and F.A.F.Winiberg, "The UV–Vis spectrumof the ClCO radical in the catalytic cycle of Cl-initiated CO oxidation", Commun. Chem 8 No. 163 (2025) DOI: 10.1038/s42004-025-01520-3
COMMENTS: Absorption measurements using a multipass UV–Vis spectrometer coupled to a pulsed-laser photolysis flow reactor at 236–294 K (photolysis of oxalyl chloride (ClCO)2 at 193 nm)

Absolute absorption cross sections could not be measured, the estimated cross section at 223 nm can be considered as a lower bound

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