Mechanism of CF3Br Photolysis at the Wavelength of 253.7 nm

Mechanism of CF3Br Photolysis at the Wavelength of 253.7 nm 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Physical Chemistry B Springer Journals

Mechanism of CF3Br Photolysis at the Wavelength of 253.7 nm

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Publisher
Pleiades Publishing
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Physical Chemistry
ISSN
1990-7931
eISSN
1990-7923
D.O.I.
10.1134/S1990793118020045
Publisher site
See Article on Publisher Site

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.

Journal

Russian Journal of Physical Chemistry BSpringer Journals

Published: May 29, 2018

References

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