EPR Pulse Radiolysis Studies of the Hydrogen Atom in Aqueous Solution. I. Reactivity of the Hydrogen Atom

Abstract
The transient properties of hydrogen and deuterium atoms produced by pulse radiolysis in water have been studied by EPR. Details of the EPR instrumentation are described. From decay characteristics of the EPR signal on addition of various solutes, rate constants for the reaction of atomic hydrogen with various classes of molecules have been determined. Agreement of our results with prior indirect determinations is, in general, good. The isotope effect is also in agreement with expectation.