Studies on the Dibenzo-p-dioxin (Diphenylene Dioxide) Derivatives. XXXIX. Electron Spin Resonance Absorption Spectra of Dibenzo-p-dioxin Derivatives in Antimony Pentachloride.

Abstract

Dibenzo-p-dioxin (I) derivatives showed blue color in antimony pentachloride. These colored solutions gave electron spin resonance absorption spectra and the formation of the cation radicals such as Ia was confirmed.