Charge transfer between amine and carbonyl.
The transfer of a whole electron in the ground state can be demonstrated by the interaction of p-phenylenediamine and glyoxal, which leads to the formation of free radicals.
D000447:Aldehydes; D004578:Electron Spin Resonance Spectroscopy; D004579:Electron Transport; D006037:Glyoxal; D010655:Phenylenediamines
D000447:Aldehydes; D010655:Phenylenediamines; D006037:Glyoxal