Articles | Volume 24, issue 4
https://doi.org/10.5194/acp-24-2625-2024
https://doi.org/10.5194/acp-24-2625-2024
Research article
 | 
28 Feb 2024
Research article |  | 28 Feb 2024

Quantum yields of CHDO above 300 nm

Ernst-Peter Röth and Luc Vereecken

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Cited articles

Araújo, M., Lasome, B., Magalhaes, A. L., Worth, G. A., Bearperk, M. J., and Robb, M. A.: The molecular dissociation of formaldehyde at medium photoexcitation energies: A quantum chemistry and direct quantum dynamics study, J. Chem. Phys., 131, 144301-1–144301-8, https://doi.org/10.1063/1.3242082, 2009. 
Breuer, G. M. and Lee, E. K. C.: Fluorescence decay times of Cyclic Ketones, Acetone, and Butanal in the gas phase, J. Phys. Chem., 75, 989–990, https://doi.org/10.1021/j100677a029, 1971. 
Burkholder, J. B., Sander, S. P., Abbatt, J. P. D., Barker, J. R., Cappa, C., Crous, D., Dipple, T. S., Huie, R. E., Kolb, C. E., Kurylo, M. J., Orkin, V. L., Percival, C. J., Wilmouth, D. M., and Wine, P. H.: Chemical kinetics and photochemical data for use in atmospheric studies, JPL-Publication 19-5, Pasadena, http://jpldataeval.jpl.nasa.gov/ (last access: 27 February 2024), 2019. 
Chuang, M.-C., Foltz, M. F., and Moore, C. B.: T1 barrier height, S1–T1 intersystem crossing rate, and S0 radical dissociation threshold for H2CO, D2CO, and HDCO, J. Chem. Phys., 87, 3855–3864, https://doi.org/10.1063/1.452940, 1987. 
Ehhalt, D. H. and Volz, A.: Coupling of the CH4 with the H2 and CO cycle: isotopic evidence, in: Symposium on Microbal Production and Utilization of Gases (H2, CH4, and CO), edited by: Schlegel, H. G., Gottschalk, G., and Pfennig, N., OCLC 4281340, Akad. Wiss. Göttingen, Germany, 1976. 
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Short summary
The paper presents the radical and molecular product quantum yields in the photolysis reaction of CHDO at wavelengths above 300 nm. Two different approaches based on literature data are used, with results falling within both approaches' uncertainty ranges. Simple functional forms are presented for use in photochemical models of the atmosphere.
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