Scavenging studies on ion-pairs

In Sect. 2.4, the theoretical implications of competitive scavenging of one or other ion of an ion-pair by another species (ion scavenger) were discussed. Much of the theoretical and experimental material has been reviewed excellently by Hummel [69]. He did much to develop this area, along with Schuler, Mozumder and co-workers. The reader is urged to consult this review and the article by Crumb and Baird [389] for most of the references to experimental work as well as the detailed comments therein. 

The radiolysis of a hydrocarbon solvent containing a scavenger, AB, which can usually react with either electron or cation, can be written as 

Using a Laplace Transform method, Rzad et al. [365] and Abell et al. [391] showed that eqn. (174) implies 

Range parameter, b (nm), estimated from the radiation yield of scavenger products formed during scavenging of ion-pairs produced in hydrocarbon solvents by high-energy radiolysis 

The range parameter was used in an exponential function representation of the initial distribution of distance, w(r0) = exp — r0/ /47rr2b, together with the scavenging probability of an ion-pair of separation, rn,p(r0, es) in eqn. (173). 

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