Abstract The 1, 2-bis (dialkylamino) benzene radical cations 2a–c⊎+ were generated by oxidation of the parent compounds with iodine or lead tetraacetate. ESR and ENDOR studies of 2a⊎+ and 2b⊎+ gave evidence of a restricted rotation about the C NMe 2 bond; based on the results of 2c⊎+ the different N-methyl proton splittings in 2a⊎+ and 2b⊎+ were assigned to the exo and endo N-methyl groups.
