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 / Organics (carbonyls) / Carbonyl oxides / CH2OO / Sheps(2013)_295K_295.156-449.421nm

DATAFILE: CH2OO_Sheps(2013)_295K_295.156-449.421nm.txt
NAME: formaldehyde oxide
FORMULA: CH2OO
AUTHOR(YEAR): Sheps(2013)
T: 295K
λ: 295.156-449.421nm
BIBLIOGRAPHY: L. Sheps, "Absolute ultraviolet absorption spectrum of a Criegee intermediate CH2OO", J. Phys. Chem. Lett. 4, 4201-4205 (2013); DOI: 10.1021/jz402191w
COMMENTS: The 266 nm photolysis of CH2I2 in a homogeneous slow-flow reactor generates CH2I radicals, which react with O2 to produce formaldehyde oxide CH2OO at T = 295 K

Transient absorption measurements were performed in a time-resolved cavity-enhanced absorption spectrometer, using a gas-phase chemical reactor coupled to a broadband optical resonator that operates in the 300−450 nm wavelength range

Absorption cross sections at ∼0.2-nm intervals have been obtained by personal communication from Leonid Sheps (June 2014)

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