Main concepts of the theory of magnetic isotope effect
This chapter is aimed to discuss the theoretical background of MIE in more detail. We will present the basic concepts and main parameters exploited in the applications of MIE. When analyzing experimental data, the observables should be expressed in terms of the effect of the isotope substitution on the recombination of intermediate radical pairs (RPs) or biradicals. Therefore, the chapter starts with a discussion of the relations between observables and RP’s recombination probabilities for some types of reactions. However, the focus of the chapter is the concept of radical pair and singlet-triplet transitions in RPs induced by hyperfine interaction. The illustrations will demonstrate how singlet-triplet transitions change after an isotope substitution.
KeywordsTriplet State Singlet State Isotope Substitution Magnetic Nucleus Magnetic Isotope
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