ESR and ENDOR study of 2,3‐dihydro‐1‐oxo‐1λ4,2,3,5‐thiatriazol‐3‐yl radicals

@inproceedings{Neugebauer1992ESRAE,
  title={ESR and ENDOR study of 2,3‐dihydro‐1‐oxo‐1λ4,2,3,5‐thiatriazol‐3‐yl radicals},
  author={Franz A. Neugebauer},
  year={1992}
}
Dehydrogenation of 2,5-dihydro-1,2,3,5-thiatriazole 1-oxides with thermally formed bis(4-methylphenyl)aminyl generated 2,3-dihydro-1-oxo-1λ4,2,3,5-thiatriazol-3-yl radicals. ESR, ENDOR and triple resonance studies in combination with 15N labelling yielded the magnitude and assignment of all 1H and 14N hyperfine coupling (HFC) constants. The radicals have a basic five-π-electron amidrazon-2-yl structure with the highest spin density at N-2.