Synthesis and Optical Properties of a Series of Push-Pull Dyes Based on Pyrene as the Electron Donor.

ABSTRACT: Fifteen push-pull dyes comprising the tetracyclic polyaromatic pyrene have been designed and synthesized. The optical properties of the fifteen dyes have been examined in twenty-two solvents of different polarities. Surprisingly, contrarily to what is classically observed for push-pull dyes of D-π-A structures, a negative solvatochromism could be found for numerous dyes. The photoluminescence and thermal properties of the dyes were also examined. Theoretical calculations were carried out to support the experimental results.

SUBMITTER: Bui TT 

PROVIDER: S-EPMC9920555 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature