Achelle S, Rodríguez-López J, Larbani M, Plaza-Pedroche R, Robin-le Guen F. Carbazole- and Triphenylamine-Substituted Pyrimidines: Synthesis and Photophysical Properties.
Molecules 2019;
24:E1742. [PMID:
31060299 PMCID:
PMC6540165 DOI:
10.3390/molecules24091742]
[Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 04/23/2019] [Accepted: 05/03/2019] [Indexed: 12/12/2022] Open
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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