Electron spin resonance (ESR) and electron nuclear double resonance (ENDOR) measurements were performed for the cation radicals obtained from the model compounds of c~-, #-, 3'and 6-tocopherol (vitamin E) by oxidizing the tocopherol precursors in an AICI3-CHaCI a solution. The proton hyperfine coupl
Electron spin resonance studies of the cation radicals of phenazine, quinoxaline, and pyrazine di-N-oxides
โ Scribed by Koichi Nishikida; Tanekazu Kubota; Hiroshi Miyazaki; Shigeru Sakata
- Publisher
- Elsevier Science
- Year
- 1972
- Weight
- 963 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0022-2364
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TheESR spectrum of the radical cation of 3-methylpentane (3-MP) in CFC12CF2Cl has been obtained. The spectrum is almost identical to that for the 2-methylbutane radical cation. From the spectral analysis it is concluded that 3-MP+ has a GT skeletal conformation and the unpaired electron is confined
The role of alkyl substitution on the electronic structure of cyclohexane radical cation was investigated with low-temperature matrix ESR and semiempirical MO calculations. It was found that the unpaired electron, which is originally delocalized throughout the cyclohexane ring, tends to be confined