title: Photochemistry of nonconjugated bichromophoric systems. Mechanism of the intramolecular photocycloaddition of biscoumarins in solution.
mesh_terms: D001952:Bridged-Ring Compounds; D003374:Coumarins / Q000528:radiation effects*; D003500:Cyclization; D010777:Photochemistry; D012996:Solutions
chemical_list: D001952:Bridged-Ring Compounds; D003374:Coumarins; D012996:Solutions