Nuclear hyperfine structure of hydrazylic free radicals

摘要: To obtain information on the electronic structure of hydrazylic free radicals, electron spin resonance hyperfine a group such radicals derived from 1-1-diphenyl-2-benzoyl-hydrazyl has been investigated as function suitable substitutions atoms or groups at different positions in benzoylic ring. It found that introduction nitric an « ortho » position to carbonyl causes change spectrum which, contrary, is not observed if same introduced para position. This indicates considerably largerI · S interaction former case, compared with latter, namely charge transfer preferentially centered positions.