The structure of free base porphine: an average of three independent structures.
D055598:Chemical Phenomena; D002621:Chemistry; D003201:Computers; D003461:Crystallography; D006859:Hydrogen / Q000032:analysis; D008433:Mathematics; D008961:Models, Structural; D008968:Molecular Conformation; D011166:Porphyrins / Q000032:analysis*
D011166:Porphyrins; D006859:Hydrogen