Abstract
The kinetics of the photolysis of CF3Br (Halon 1301) at various durations of irradiation of CF3Br−oxygen mixtures at a wavelength of 253.7 nm is studied. The spectra and absorbances of the reactants are obtained within the range of 200−900 nm using an M-40 spectrophotometer. Kinetic data are determined from a change in the absorption spectra at a wavelength of 416 nm, which corresponds to the maximum absorption of molecular bromine. A kinetic mechanism of CF3Br photolysis is proposed, and the quantum yield and the absorption cross section of CF3Br at this wavelength are determined.
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Original Russian Text © T.I. Belyakova, I.K. Larin, N.A. Messineva, E.M. Trofimova, 2018, published in Khimicheskaya Fizika, 2018, Vol. 37, No. 3, pp. 78–84.
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Belyakova, T.I., Larin, I.K., Messineva, N.A. et al. Mechanism of CF3Br Photolysis at the Wavelength of 253.7 nm. Russ. J. Phys. Chem. B 12, 352–356 (2018). https://doi.org/10.1134/S1990793118020045
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DOI: https://doi.org/10.1134/S1990793118020045