Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Valence isomerization of dimethyl bicyclo[2.2.1]hepta-2,5-dien-2,3-dicarboxylate is induced on quenching the fluorescence of a variety of sensitizers. Quantum efficiencies for rearrangement depend on the triplet energy of of the sensitizer. ... Photophysics of Aromatic ...