The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

Hannelore Keller-Rudek1, Geert K. Moortgat2, Rolf Sander2, Rüdiger Sörensen1

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1Satellite Group

2Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Cross Sections

Quantum Yields


Contact, Impressum, Acknowledgements

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 (N-compounds) / Nitrates / CH3ONO2 / IUPAC(2006)_298K_240-340nm(rec)

DATAFILE: CH3ONO2_IUPAC(2006)_298K_240-340nm(rec).txt
NAME: methyl nitrate
T: 298K
λ: 240-340nm(rec)
BIBLIOGRAPHY: R. Atkinson, D.L. Baulch, R.A. Cox, J.N. Crowley, R.F. Hampson, R.G. G. Hynes, M.E. Jenkin, M.J. Rossi, and J. Troe, "Evaluated kinetic and photochemical data for atmospheric chemistry: Volume II - gas phase reactions of organic species", Atmos. Chem. Phys. 6, 3625-4055 (2006); DOI: 10.5194/acp-6-3625-2006
COMMENTS: IUPAC(2006) recommendation:

The preferred values of the absorption cross-sections at 298 K are average values from the data of

J.M. Roberts and R.W. Fajer, "UV absorption cross sections of organic nitrates of potential atmospheric importance and estimation of atmospheric lifetimes," Environ. Sci. Technol. 23, 945-951 (1989); DOI: 10.1021/es00066a003,

O. Rattigan, R.L. Lutman, R.L. Jones, and R.A. Cox, "Temperature-dependent absorption cross-sections of gaseous nitric acid and methyl nitrate," J. Photochem. Photobiol. A: Chem. 66, 313-326 (1992); DOI: 10.1016/1010-6030(92)80003-, and

R.K. Talukdar, J.B. Burkholder, M. Hunter, M.K. Gilles, J.M. Roberts, and A.R. Ravishankara, "Atmospheric fate of several alkyl nitrates. Part 2. UV absorption cross-sections and photodissociation quantum yields," J. Chem. Soc. Faraday Trans. 93, 2797-2805 (1997); DOI: 10.1039/A701781B.

Temperature coefficients B for the parameterization
ln σ(T) = ln σ(298 K) + B × (T-298) at T = 240-360 K:

λ  103 B
(nm) (K-1)
240  3.48
245  3.29
250  2.96
255  2.82
260  2.83
265  2.92
270  3.08
275  3.28
280  3.51
290  4.04
295  4.47
300  4.94
305  5.56
310  6.33
315  7.34
320  8.74
325  9.97
330 13.6

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