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 / Halogenated N-compounds(inorg) / IONO2 / Joseph(2007)_296K_240-370nm(5nm)

DATAFILE: IONO2_Joseph(2007)_296K_240-370nm(5nm).txt
NAME: iodine nitrate
FORMULA: IONO2
AUTHOR(YEAR): Joseph(2007)
T: 296K
λ: 240-370nm(5nm)
BIBLIOGRAPHY: D.M. Joseph, S.H. Ashworth, and J.M.C. Plane, "On the photochemistry of IONO2: absorption cross section (240-370 nm) and photolysis product yields at 248 nm", Phys. Chem. Chem. Phys. 9, 5599-5607 (2007); DOI: 10.1039/B709465E
COMMENTS: Pulsed photolysis at 193 nm of a NO2/CF3I mixture, followed by time-resolved Fourier transform spectroscopy; spectral resolution 30 cm -1, i.e., ∼0.2 nm at 240 nm reducing to ∼0.4 nm at 370 nm

A fifth-order polynomial fit *) through the measured data yields
(for λ = 240-370 nm and T = 296 K)

log10 σ (cm2 molecule-1) =
170.364 3.77332 λ + 2.96489×10-2 λ2 - 1.13916×10-4 λ3 + 2.14430×10-7 λ4 - 1.58724×10-10 λ5

and the listed absorption cross sections

*) The polynomial fit given in the publication shows too few significant figures in the coefficients and thus does not reproduce the data listed in Table 1

The corrected version of the polynomial fit has been obtained by personal communication from Stephen H. Ashworth (Oct 2007)

Error limits (2σ) of the absorption cross sections are listed in the third column of the datafile

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