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 / Halogen oxides / I oxides / OIO / Ingham(2000)_298K_548.6nm

DATAFILE: OIO_Ingham(2000)_298K_548.6nm.txt
NAME: iodine dioxide
FORMULA: OIO
AUTHOR(YEAR): Ingham(2000)
T: 298K
λ: 548.6nm
BIBLIOGRAPHY: T. Ingham, M. Cameron, and J.N. Crowle, " Photodissociation of IO (355 nm) and OIO (532 nm): Quantum yields for O(3P) and I(2PJ) production", J. Phys. Chem. A 104, 8001-8010 (2000); DOI: 10.1021/jp001166p
COMMENTS: This value for absorption cross section at 548.6 nm, based on the measuements of

S. Himmelmann, J. Orphal, H. Bovensmann, A. Richter, A. Ladstätter-Weissenmayer, and J.P. Burrows, First observation of the OIO molecule by time-resolved flash photolysis absorption spectroscopy, Chem. Phys. Lett. 251, 330-334 (1996); DOI: 10.1016/0009-2614(96)00114-5, and

P. Spietz, S. Himmelmann, U. Gross, J. Bleck-Neuhaus, and J.P. Burrows, "A complex approach to investigate the chemistry and kinetics of IOx using flash photolysis and time-resolved absorption spectroscopy", 15th Int. Symp. Gas Kinetics, Bilbao, Spain, 1998, has been used in the photodissociation study of OIO

The absorption cross section obviously is too large by a factor 10

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