title: Paramagnetic centres formed by photolysis in a single crystal of N-acetyl-DL-valine at room temperature.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D014466:Ultraviolet Rays; D014633:Valine / Q000031:analogs & derivatives / Q000528:radiation effects*
chemical_list: D005609:Free Radicals; D014633:Valine