Cross‐reaction and cross‐combination ratios | Zendy

Arthur Neville L. | Zendy; Christie John R. | Zendy

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Cross‐reaction and cross‐combination ratios

Author(s) -

Arthur Neville L.,

Christie John R.

Publication year - 1987

Publication title -

international journal of chemical kinetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 68

eISSN - 1097-4601

pISSN - 0538-8066

DOI - 10.1002/kin.550190309

Subject(s) - radical , chemistry , collision , mass ratio , computational chemistry , organic chemistry , physics , computer security , astrophysics , computer science

A simple collision theory model for reaction between two different radicals shows that the cross‐reaction ratio, ϕ*, is 2 only if the masses and collision diameters of the radicals are identical; for all other combinations of mass and size, ϕ* is greater than 2. The value of ϕ* is shown to depend simply on the ratios of the masses and diameters of the two radicals: which of the two is the heavier or larger is unimportant. Calculated and experimental values of ϕ* are compared for several systems involving small alkyl and fluoroalkyl radicals, and the relationship between ϕ* and ϕ, the cross‐combination ratio, is discussed.

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