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Flash photolysis study of the NO-catalyzed recombination of bromine atoms

✍ Scribed by H. Hippler; S. H. Luu; H. Teitelbaum; J. Troe

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 707 KB
Volume: 10
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550100203

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✦ Synopsis

Abstract

The recombination of bromine atoms at room temperature has been studied by flash photolysis in the range of 1–100 atm of the inert diluent He, leading to a value for the third‐order rate constant of (1.5 ± 0.2) × 10^15^ cm^6^/mol^2^.sec. In the presence of NO the recombination is considerably accelerated. The falloff curve of the recombination Br + NO (+He) → BrNO (+He) was also measured resulting in a value for the limiting low‐pressure rate constant of (3.4 ± 1.3) × 10^15^ cm^6^/mol^2^.sec. In experiments with excess NO, rate constants of (2.2 ± 1) × 10^14^ cm^3^/mol·sec for the reaction Br + BrNO → Br~2~ + NO, and (6.1 ± 0.4) × 10^9^ cm^6^/mol^2^.sec for the reaction Br~2~ + 2NO → 2BrNO were obtained.

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