Kinetics and mechanism of CH3Br, CHF2Br, and C2HF4Br photolysis in the presence of dioxygen under the action of λ = 253.7 nm light

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

doi:10.1134/s0023158414050085

Kinet Catal

2014

DOI: 10.1134/s0023158414050085

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Kinetics and mechanism of CH3Br, CHF2Br, and C2HF4Br photolysis in the presence of dioxygen under the action of λ = 253.7 nm light

I. K. Larin

T. I. Belyakova

N. A. Messineva

et al.

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Cited by 3 publications

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“…Investigating the photolysis of CHF 2 Br and CF 3 Br, we determined the ratio of the rate con stants of reactions (IV) and (V) [11]. For CF 3 Br k IV /k V = 0.47; for CHF 2 Br k IV /k V = 4.8.…”

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Measuring the rate constant of the reaction between chlorine atoms and CHF2Br by Cl atom resonance fluorescence

et al. 2016

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The rate constant of the reaction between Cl atoms and CHF 2 Br has been measured by chlorine atom resonance fluorescence in a flow reactor at temperatures of 295-368 K and a pressure of ~1.5 Torr. Lin ing the inner surface of the reactor with F 32L fluoroplastic makes the rate of the heterogeneous loss of chlo rine atoms very low (k het ≤ 5 s -1 ). The rate constant of the reaction is given by the formula k = (4.23 ± 0.13) × 10 -12 e (-15.56 ± 1.58)/RT cm 3 molecule -1 s -1 (with the activation energy in kJ/mol units). The possible role of this reaction in the extinguishing of fires producing high concentrations of chlorine atoms is discussed.

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Measuring the rate constant of the reaction between chlorine atoms and CHF2Br by Cl atom resonance fluorescence

et al. 2016

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Kinetics and mechanism of the photolysis of CF2ClBr exposed to light with a wavelength of 253.7 nm

et al. 2017

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UV Photolysis in a C2H2F2Br2 Mixture with Oxygen

Larin

Belyakova

Messineva

et al. 2020

Russ. J. Phys. Chem. B

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Kinetics and mechanism of CH3Br, CHF2Br, and C2HF4Br photolysis in the presence of dioxygen under the action of λ = 253.7 nm light

Cited by 3 publications

References 11 publications

Measuring the rate constant of the reaction between chlorine atoms and CHF2Br by Cl atom resonance fluorescence

Measuring the rate constant of the reaction between chlorine atoms and CHF2Br by Cl atom resonance fluorescence

Kinetics and mechanism of the photolysis of CF2ClBr exposed to light with a wavelength of 253.7 nm

UV Photolysis in a C2H2F2Br2 Mixture with Oxygen

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