Theoretical Pre-Exponential Factors for Twelve Bimolecular Reactions

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Abstract
The Arrhenius pre-exponential factor A has been calculated and compared with experiment for a group of twelve bimolecular gas phase reactions of simple inorganic molecules. The most detailed form of the activated complex theory, a cruder method of hydrocarbon analogy, and the simple collision theory were used. Necessary assumptions about the properties of the activated complex were made uniform for the whole set of reactions. Particular attention was paid to the treatment of internal rotations and vibrations. The agreement of the activated complex theory with experiment was found to be satisfactory.