title: Paramagnetic intermediates in the deactivation of excited molecules.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D004579:Electron Transport; D004735:Energy Transfer; D008722:Methods; D008967:Molecular Biology; D010084:Oxidation-Reduction; D010777:Photochemistry; D011809:Quinones; D013057:Spectrum Analysis; D014966:Xanthenes / Q000032:analysis
chemical_list: D011809:Quinones; D014966:Xanthenes