title: Anion radicals of bacteriochlorophyll a and bacteriopheophytin a. Electron spin resonance and electron nuclear double resonance studies.
mesh_terms: D000838:Anions; D001429:Bacteriochlorophylls; D002734:Chlorophyll / Q000031:analogs & derivatives; D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy; D010674:Pheophytins; D010777:Photochemistry
chemical_list: D000838:Anions; D001429:Bacteriochlorophylls; D010674:Pheophytins; D002734:Chlorophyll; C006678:bacteriopheophytin