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Carbazole- and Triphenylamine-Substituted Pyrimidines: Synthesis and Photophysical Properties
Sylvain Achelle1, Julián Rodríguez-López2, Massinissa Larbani3
1Université de Rennes, CNRS, Institut des Sciences Chimiques de Rennes-UMR 6226, F 35000 Rennes, France. sylvain.achelle@univ-rennes1.fr.
Abstract:
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.
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