## Abstract Solution and powder ESR spectra of the 4‐trifluoromethyl‐1,2,3,5‐dithiadiazolyl and 4‐pentafluorophenyl‐1,2,3,5‐dithiadiazolyl free radicals were analysed. Comparison of the ESR parameters with those obtained for the protonated equivalents shows that fluorination produces a drift of unp
Observation of the Neophyl Radical Rearrangement by Electron Spin Resonance Spectroscopy
✍ Scribed by Edwin J. Hamilton Jr.; Hanns Fischer
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- German
- Weight
- 277 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The rearrangement of the 2‐methyl‐2‐phenylpropyl (or neophyl) radical 1 to the 1‐methyl‐1‐benzylethyl radical 2 is observed by ESR. spectroscopy during photolysis of di‐t‐butylperoxide in t‐butylbenzene at 270–360 K. The energy of activation of the rearrangement is determined to be (43 ± 9) kJ mol^−1^.
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