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An empirical method for the estimation of bond dissociation energies

✍ Scribed by A. Van Tiggelen; J. Peeters; R. Burke

Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
207 KB
Volume
20
Category
Article
ISSN
0009-2509

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✦ Synopsis

An empirical formula for the calculation of bond dissociation energies D(A--B) is suggested:

where uA and czB are constants characteristic of radicals A-and B. while u is eitherc,A orc~B, whichever has the smaller value.

Values of c, for thirty-four organic and inorganic radicals have been determined and tabulated. From values of D(A--B), heats of reaction Q can be calculated. Activation energies E for substitution reactions can then be evaluated with the help of Polanyi's relation: E = (const.)x --(const.)2. Q.

πŸ“œ SIMILAR VOLUMES

A simple empirical method for the estima
A simple empirical method for the estimation of activation energies in radical molecule metathesis reactions
✍ Ze'ev B. Alfassi; Sidney W. Benson πŸ“‚ Article πŸ“… 1973 πŸ› John Wiley and Sons 🌐 English βš– 633 KB

## Abstract Several new empirical methods are presented for the prediction of activation energies __E__ of the metathetical transfer reaction of single bonded atoms in radical‐molecule reactions of the type AΒ· + BC β†’ AB + CΒ· The methods assign additive contributions to __E__ for the endgroups AΒ· an