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

Autor:	Thanh-Tuân Bui, Sébastien Péralta, Frédéric Dumur
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	pyrene polycyclic aromatic hydrocarbon push-pull dye solvatochromism electron donor Organic chemistry QD241-441
Zdroj:	Molecules, Vol 28, Iss 3, p 1489 (2023)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules28031489
Popis:	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.
Databáze:	Directory of Open Access Journals
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