Primary Processes in the Action of Ionizing Radiations on Water: Formation And Reactivity of Self-Trapped Electrons (‘Polarons’)

摘要: Recent evidence is reviewed which indicates that positive as well negative ionic species formed from the water may be important in radiation chemistry of aqueous systems. Evidence presented there are two reducing present solution, namely hydrogen atoms and electrons. The self- trapped electrons dielectric medium (water) were tentatively identified with polaron. Results recent studies reported indicate these polarons normally relatively stable. known physical characteristics summarized, reactions discussed. interaction irradiated considered. electron spin resonance measurements on ice frozen acids giving further indication for existence polarons. (C.H.)