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Kinetics and mechanism of the photodecomposition of trifluorobromomethane and tetrafluorodibromoethane under the action of light with a wavelength of 253.7 nm

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Abstract

The kinetics of photodecomposition of Halons CF3Br and C2F4Br2 was studied at different times of the irradiation of a mixture of these substances with oxygen at the wavelength λ = 253.7 nm. Kinetic data were obtained from changes in the absorption spectra in the region of Halon absorption and at a wavelength of 416 nm, which corresponds to the absorption maximum of molecular bromine. Kinetic schemes were proposed for the photodecomposition of CF3Br and C2F4Br2 at λ = 253.7 nm, and the quantum yields of their photodecomposition at this wavelength were determined.

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Authors and Affiliations

  1. Institute of Energy Problems of Chemical Physics, Moscow, 117829, Russia

    I. K. Larin, T. I. Belyakova, N. A. Messineva, A. I. Spasskii & E. M. Trofimova

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  1. I. K. Larin
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  2. T. I. Belyakova
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  3. N. A. Messineva
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  4. A. I. Spasskii
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  5. E. M. Trofimova
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Correspondence to I. K. Larin.

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Original Russian Text © I.K. Larin, T.I. Belyakova, N.A. Messineva, A.I. Spasskii, E.M. Trofimova, 2011, published in Kinetika i Kataliz, 2011, Vol. 52, No. 4, pp. 524–528.

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Larin, I.K., Belyakova, T.I., Messineva, N.A. et al. Kinetics and mechanism of the photodecomposition of trifluorobromomethane and tetrafluorodibromoethane under the action of light with a wavelength of 253.7 nm. Kinet Catal 52, 513–517 (2011). https://doi.org/10.1134/S0023158411040070

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  • DOI: https://doi.org/10.1134/S0023158411040070

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