The kinetics of radiation-induced hydrogen abstraction by CCl3 and CCl3O2 radicals from cyclohexane in the liquid phase

Zeev B. Alfassi, Shlomo Mosseri

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The kinetics of the photolysis-induced free-radical reaction in carbon tetrachloride solution of cyclohexane in the absence and in the presence of oxygen were studied in the temperature range of 100-200°C. It was found that the influence of the oxygen on the chloroform formation is significant, and a new mechanism which explains the results was suggested. The rate constants for the reactions ·CCl3 + O2 → ·CCl3O2 (k6), ·CCl3O2 → COCl2 + ClO (k7), and ·CCl3O2 + C6H12 → CHCl3 + ·C6H11 + O2 (k8) were found as log (k6/(M-1 s-1)) = 5.05 ± 0.07 and log [(k8/k7)/(M-1 s-1)] = (3.0808 ± 0.0973) - (3.7080 ± 0.1857)/θ, where θ = 2.303RT kcal/mol.

Original languageEnglish
Pages (from-to)3296-3300
Number of pages5
JournalJournal of Physical Chemistry
Volume88
Issue number15
DOIs
StatePublished - 1 Jan 1984

ASJC Scopus subject areas

  • General Engineering
  • Physical and Theoretical Chemistry

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