title: Excited states of biomolecules--IV.
mesh_terms: D002338:Carotenoids / Q000528:radiation effects*; D002734:Chlorophyll / Q000528:radiation effects*; D003374:Coumarins / Q000528:radiation effects*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010777:Photochemistry; D011090:Polyenes / Q000528:radiation effects*; D011166:Porphyrins / Q000528:radiation effects*; D011687:Purines / Q000528:radiation effects*; D011743:Pyrimidines / Q000528:radiation effects*; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis; D013059:Spectrum Analysis, Raman
chemical_list: D003374:Coumarins; D011090:Polyenes; D011166:Porphyrins; D011687:Purines; D011743:Pyrimidines; D002734:Chlorophyll; D002338:Carotenoids