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Kinetics of radiation‐induced abstraction of hydrogen atoms by CCl 3 radicals in the liquid phase: 2,3‐dimethylbutane
Author(s) -
Alfassi Zeev B.,
Feldman Liviu
Publication year - 1980
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550120603
Subject(s) - chemistry , radical , kinetics , activation energy , hydrogen atom abstraction , carbon tetrachloride , reaction rate constant , hydrogen , atmospheric temperature range , diffusion , chemical kinetics , phase (matter) , gas phase , radiation , photochemistry , analytical chemistry (journal) , thermodynamics , organic chemistry , physics , quantum mechanics
The kinetics of the gamma‐radiation induced free radical reactions in carbon tetrachloride solutions of 2,3‐dimethylbutane (DMB) were studied in the temperature range 32–118 °C. The kinetics of the following reactions were measured:\documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} {\rm CCl}_3 + {\rm RH} \to {\rm CHCl}_3 + {\rm R} \\ {\rm CCl}_{\rm 3} + {\rm CCl}_{\rm 3} \to {\rm C}_2 {\rm Cl}_6 \\ \end{array} $$\end{document}and the following rate constants expression was obtained:\documentclass{article}\pagestyle{empty}\begin{document}$$ \log k_2 /k_3^{1/2} (M^{ - 1/2} \sec ^{ - 1/2} )\, = \,(2.40 \pm 0.17) - (6.96 \pm 0.26)/{\rm \theta } $$\end{document} . The activation energy and the A factor obtained are in good agreement with the values obtained at the gaseous phase, considering the activation energy for self‐diffusion of CCl 4 .