Effect of the size of polycyclic aryl groups on the competition between adiabatic/diabatic photoisomerization mechanisms of cis-styrylarenes.

Alessio Cesaretti Benedetta Carlotti Fausto Elisei Anna Spalletti

Published in: Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology (2019)

The occurrence of adiabatic photoisomerization in the singlet manifold directly from 1Z* to 1E* has been found to be more common than expected. This mechanism has been experimentally evidenced through a detailed fluorimetric study for a large series of styrylarenes. Its weight on the overall cis-trans photoisomerization has been determined and found to increase when increasing the size of the polycyclic chromophore.

Keyphrases

risk assessment
body mass index
physical activity
weight loss
weight gain
quantum dots