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
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| DATAFILE: | C2H5C(O)C2H5_Brewer(2019)_296K_200-335nm.txt |
| NAME: | diethyl ketone, 3-pentanone |
| FORMULA: | C2H5C(O)C2H5 |
| AUTHOR(YEAR): | Brewer(2019) |
| T: | 296K |
| λ: | 200-335nm |
| BIBLIOGRAPHY: |
J.F. Brewer, D. K. Papanastasiou, J. B. Burkholder, E. V. Fischer, Y. Ren, A. Mellouki, and A. R. Ravishankara, "Atmospheric photolysis of methyl ethyl, diethyl, and propyl ethyl ketones: Temperature‐dependent UV absorption cross sections",
J. Geophys. Res. Atmospheres 124, 5906-5918 (2019)
DOI: 10.1029/2019JD030391
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| COMMENTS: | Absorption measurements (1-nm resolution, 242-320 K) using a D2 lamp and a spectrometer/CCD (charge‐coupled device) detector set-up
The authors provide an expression to calculate cross sections (230-335 nm) at different temperatures, σ(λ,T), using a two-state model (σ0 for electronic excitation from ground state and σ1 representing the cross sections for electronic excitation from the first vibrational state of the C=O vibration). The expression, which was
validated with their experimental data, is as follows:
σ(λ,T) = X0σ0 + X1σ1,
where X0 = (1+exp (-2474.696/T))-1, X1 = 1- X0 and T is the temperature in Kelvin
The absorption cross sections σ, σ0, and σ1 have been downloaded from the "Supporting Information" published along with the online version of the article |
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