Deuterium-isotope effect in the chlorine exchange between hydrogen chloride and chlorine atoms. A study of models for the tunnel effect

Fritz S. Klein, Avigdor Persky, Ralph E. Weston

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54 Scopus citations

Abstract

The rates of the exchange reactions of chlorine atoms with hydrogen chloride and with deuterium chloride were measured as a function of temperature. Chlorine atoms were produced by photodecomposition of chlorine gas and their relative concentration was monitored by their reaction with deuterium: Cl+D 2→DCl+D. The temperature dependence of the logarithm of the ratio of rates was found to be nonlinear in the temperature range of 30° to 150°C. Various attempts to calculate the isotope effect assuming different types of tunneling are discussed.

Original languageEnglish
Pages (from-to)1799-1807
Number of pages9
JournalJournal of Chemical Physics
Volume41
Issue number6
DOIs
StatePublished - 1964
Externally publishedYes

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