Carbazole- and Triphenylamine-Substituted Pyrimidines: Synthesis and Photophysical Properties

A series of pyrimidine derivatives bearing one, two or three triphenylamine/9-ethylcarbazole substituents has been synthesized by Suzuki cross-coupling reaction. All compounds showed absorption bands in the UV region and the emission of violet-blue light upon irradiation. Protonation led to quenchin...

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Bibliographic Details
Main Authors: Sylvain Achelle, Julián Rodríguez-López, Massinissa Larbani, Rodrigo Plaza-Pedroche, Françoise Robin-le Guen
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/9/1742
Description
Summary:A series of pyrimidine derivatives bearing one, two or three triphenylamine/9-ethylcarbazole substituents has been synthesized by Suzuki cross-coupling reaction. All compounds showed absorption bands in the UV region and the emission of violet-blue light upon irradiation. Protonation led to quenching of the fluorescence, although some derivatives remained luminescent with the appearance of a new red-shifted band in the spectra. Accurate control of the amount of acid enabled white photoluminescence to be obtained both in solution and in solid state.
ISSN:1420-3049