Nitrogen-hydrogen tautomerism in porphyrins and chlorins.
D055598:Chemical Phenomena; D002621:Chemistry; D006859:Hydrogen; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D009584:Nitrogen; D011166:Porphyrins; D011758:Pyrroles
D011166:Porphyrins; D011758:Pyrroles; D006859:Hydrogen; D009584:Nitrogen