Spin trapping hyperfine splitting constants

The presence of radicals was demonstrated (De Groot et al., 1973) using the radical trap, 2-methyl-2-nitrosopropanol. By studying the hyperfine splitting constants of the electron spin resonance (esr) spectra of a series of adduct radicals formed when linoleic acid or different deuterated analogues were used as the substrate, it was shown that the radical scavenger reacted at position 9 or 13 on linoleic acid. This is evidence that the linoleyl radical... 

Besides a g-factor and aminoxyl nitrogen coupling constant dependent on the species trapped, the ESR spectra also showed different patterns due to hyperfine splitting characteristic of the radical scavenged. This last important feature was investigated by means of density functional theory calculations. The overall summary of the ESR characteristics of various ARs produced in nitrones has been completed [19, 72]. In these studies, the various aspects and features of application of the spin trap method in invetigations of the mechanism of chemical reactions are considered. 

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