title: Stereochemistry of low-spin cobalt porphyrins. I. Structure and bonding in a nitrosylcobalt porphyrin and their bearing on one rational model for the oxygenated protoheme.
mesh_terms: D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D003035:Cobalt; D003201:Computers; D003461:Crystallography; D006418:Heme; D008722:Methods; D008961:Models, Structural; D008968:Molecular Conformation; D011166:Porphyrins; D013237:Stereoisomerism; D014961:X-Ray Diffraction
chemical_list: D011166:Porphyrins; D003035:Cobalt; D006418:Heme