M. Maafi et al., DIRECT VALENCE ISOMERIZATION OF NEWLY SYNTHESIZED NORBORNADIENE AROMATIC DERIVATIVES - A KINETIC AND PHOTOPHYSICAL STUDY, Chemistry Letters, (10), 1994, pp. 1865-1868
Four norbornadiene aromatic derivatives, potentially useful for light
energy photochemical storage, were synthesized. Their photophysical pr
operties and the kinetics of the valence photoisomerization reaction i
nto quadricyclanes were investigated. Overall first-order rate constan
ts of photoisomerization were found to be very fast and to vary marked
ly with the polarity of the solvent.