title: Characterization of triplet states by optical spectroscopy.
mesh_terms: D005557:Formaldehyde; D007700:Kinetics; D008163:Luminescent Measurements; D008433:Mathematics; D008961:Models, Structural; D008968:Molecular Conformation; D010100:Oxygen; D010782:Photolysis; D011312:Pressure; D011789:Quantum Theory; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
chemical_list: D005557:Formaldehyde; D010100:Oxygen