a species with a positive charge and an unpaired electron.
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9,10-diphenylanthracene cation radical
(E)-4-nitrobenzaldehyde O-1-(N-acetyl-N-methylamino)eth-1-yloxime
Benzene, 1,1'-(1,4-diethylidene-1,4-butanediyl)bis[4-methoxy-, (Z,Z)-