title: Dynamics of axial ligation in metalloporphyrins. I. Imidazole exchange in low-spin ferric porphyrins.
mesh_terms: D007093:Imidazoles; D007501:Iron; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D011166:Porphyrins
chemical_list: D007093:Imidazoles; D011166:Porphyrins; D007501:Iron