title: Proton nuclear magnetic resonance line widths and spin relaxation in paramagnetic metalloporphyrins of chromium(3), manganese(3), and iron(3).
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002857:Chromium; D007501:Iron; D009682:Magnetic Resonance Spectroscopy; D008345:Manganese; D011166:Porphyrins
chemical_list: D011166:Porphyrins; D002857:Chromium; D008345:Manganese; D007501:Iron