The radical polymerization of dicyclohexyl fumarate (DCHF) and its derivatives was carried out with dimethyl 2,2'-azobisisobutyrate in benzene at 60ยฐC. The propagation and termination rate constants (kp and kl) were determined by electron spin resonance spectroscopy. The k, and k, values were 0.48-0
Electronic Structure of Oligosilane and Polysilane Radical Cations as Studied by Electron Spin Resonance and Electronic Absorption Spectroscopy
โ Scribed by Kumagai, Jun; Yoshida, Hiroshi; Ichikawa, Tsuneki
- Book ID
- 118734367
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 584 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0022-3654
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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
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