## Abstract Cycloheptatrienyl radicals with donor and acceptor substituents were generated by hydrogen abstraction from the corresponding cycloheptatrienes and studied by EPR spectroscopy. The barrier to rotation about the Cβ1ο£ΏCο£ΎO bond in ethoxycarbonylcycloheptatrienyl radicals was found to be ca.
An mo study of the substituent effect in benzene radical ions
β Scribed by Fernando Bernardi; Maurizio Guerra; Gian Franco Pedulli
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- French
- Weight
- 582 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0040-4020
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π SIMILAR VOLUMES
ESR spectral parameters of methoxy-, hydroxy-and cyano-substituted cycloheptatrienyl radicals are reported. The radicals were obtained in adamantane matrices by the rearrangement of substituted bicyclo(3.2.0lheptadienyl radicals. The hypefine splitting parameters are interpreted in terms of the effe
The effect of substituents on the activation energy for primary dissociation processes in the molecular ions of mono-andparu and meta di-substituted benzenes has been examined. Where the daughter ion retains the substituent group, variation of the energy of activation derives from a combination of t