Possible formation of an azulene-type radical obtained on heating 3,4-benzpyrene.
D001580:Benzopyrenes; D003508:Cycloheptanes; D004578:Electron Spin Resonance Spectroscopy; D011083:Polycyclic Compounds
D001580:Benzopyrenes; D003508:Cycloheptanes; D011083:Polycyclic Compounds