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Measurement of diffusion coefficients for diffusion-controlled reactions

✍ Scribed by Peter B. Ayscough; Keith D. Bartle; Anthony A. Clifford; Derek Mills

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
345 KB
Volume
20
Category
Article
ISSN
0538-8066

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✦ Synopsis

The Taylor dispersion technique has been used to measure the diffusion coefficients of nine compounds in dilute solution in isopropanol at 300 K. These compounds correspond, by the difference of a single hydrogen atom, to nine free radicals, for which the rate constants for bimolecular (termination) reactions have been previously measured under the same conditions by e.s.r. Comparison of the two sets of results show the termination reactions to be essentially diffusion-controlled, and, assuming no activationenergy effect, interaction parameters for the termination reactions are calculated and discussed.

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