title: The chemistry of porphyrin pi-cations.
mesh_terms: D001966:Bromine; D003035:Cobalt; D003300:Copper; D004578:Electron Spin Resonance Spectroscopy; D007501:Iron; D007854:Lead; D008274:Magnesium; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D009532:Nickel; D009942:Organometallic Compounds; D010084:Oxidation-Reduction; D011166:Porphyrins; D012834:Silver; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D014001:Tin
chemical_list: D009942:Organometallic Compounds; D011166:Porphyrins; D007854:Lead; D003035:Cobalt; D012834:Silver; D014001:Tin; D003300:Copper; D009532:Nickel; D007501:Iron; D008274:Magnesium; D001966:Bromine