Two-photon isomerization properties of donor-acceptor Stenhouse adducts.

ABSTRACT: Donor-acceptor Stenhouse adducts (DASAs) are important photo-responsive molecules that undergo electrocyclic reactions after light absorption. From these properties, DASAs have received extensive attention as photo-switches with negative photochromism. Meanwhile, several photochemical applications require isomerization events to take place in highly localized volumes at variable depths. Such focused photoreactions can be achieved if the electronic excitation is induced through a non-linear optical process. In this contribution we describe DASAs substituted with extended donor groups which provide them with significant two-photon absorption properties. We characterized the photo-induced transformation of these DASAs from the open polymethinic form to their cyclopentenic isomer with the use

SUBMITTER: Reza-Gonzalez FA 

PROVIDER: S-EPMC10231324 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature