N-H tautomerism in porphyrins and chlorins.
D003201:Computers; D003903:Deuterium; D006859:Hydrogen; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D008433:Mathematics; D008745:Methylation; D008968:Molecular Conformation; D009584:Nitrogen; D011166:Porphyrins; D013329:Structure-Activity Relationship; D013696:Temperature
D011166:Porphyrins; D006859:Hydrogen; D003903:Deuterium; D009584:Nitrogen