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

Thanh-Tuân Bui (1) , Sébastien Péralta (1) , Frédéric Dumur (2)

1 LPPI - Laboratoire de Physico-chimie des Polymères et des Interfaces
2 ICR - Institut de Chimie Radicalaire

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.

Mots clés: pyrene; polycyclic aromatic hydrocarbon; push-pull dye; solvatochromism; electron donor

Domaines: Chimie

Thanh-Tuân Bui, Sébastien Péralta, Frédéric Dumur. Synthesis and Optical Properties of a Series of Push-Pull Dyes Based on Pyrene as the Electron Donor. Molecules, 2023, 28, pp.1489. ⟨10.3390/molecules28031489⟩. ⟨hal-03971916⟩