非表示:
キーワード:
-
要旨:
Electron spin resonance spectra have been observed for anion radicals derived from 2−fluoro−nitro−benzene, 3−fluoro−nitrobenzene, 2,4−difluoro−nitrobenzene, 2,5−difluoro−nitrobenzene, 4−fluoro−2−nitro−phenol, 2−fluoro−6−nitrophenol, and 3−fluoro−6−nitrophenol. All radicals were generated electrolytically in dimethoxyethane/acetonitrile solution, acetonitrile, or dimethylformamide. The radicals are generally quite stable with the exception of those from 2−fluoro−6−nitrophenol and 3−fluoro−6−nitrophenol, the latter decaying with a half−life of approximately 6 min. All spectra can be interpreted completely, and coupling constants are assigned by comparison to related compounds and consistency arguments
