Experimental studies of radical and molecular recombination

To a fairly good approximation, the Stokes—Einstein relationship for the diffusion coefficient can be used [eqn. (28)], so that inverse recombination probability can be expressed as 

With the classifications of spatially correlated reactant recombinations and the cage effect in mind, the effects discussed in Sect. 3.1 are largely due to the spatial correlation. Indeed, changing the solvent viscosity by applying pressure or changing the temperature, or the radical reactivity should have little effect on the potential of mean force and not much on the extent and range of hydrodynamic repulsion. 

3 nm or so, this may be due to a genuine cage effect in that both the potential of mean force and hydrodynamic repulsion inhibit the ready approach of the radicals into the same solvent cage. 

Dobois et al. [289a] have photolysed perfluoroazomethane and determined the yield of perfluoroethane in several solvents at different temperatures. Their results are shown in Fig. 22 again, the inverse recombination 

Mention has already been made of the study by Lyon and Levy [20] of the recombination of mixtures of methyl and perdeuteromethyl 

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