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Synthesis and photophysical characterization of novel ESIPT triazinyl-benzazole derivatives

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Synthesis and photophysical characterization of novel ESIPT triazinyl-benzazole derivatives

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Título Synthesis and photophysical characterization of novel ESIPT triazinyl-benzazole derivatives
Autor Barreto, Fabiano
Jank, Louíse
Stefani, Valter
Abstract In this work, the synthesis, characterization and photophysical study of new derivatives of triazinyl-benzazoles with fluorescence by excited-state intramolecular proton transfer (ESIPT) are presented. It regards the synthesis of cyanuric chloride with different 2-(2’-hydroxyphenyl) benzazoles, two quite attractive groups from the synthetic and technological point of view. These new compounds have several potential applications such as biological markers and new photoluminescent materials. The derivatives were characterized by 1H and 13C nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), high-resolution mass spectrometry (HRMS), UV-Vis absorption and fluorescence emission. The dyes are fluorescent by an excited-state ESIPT in the blue-orange region, with a large Stokes’ shift.
Contido em Journal of the Brazilian Chemical Society. Campinas. Vol. 26, no. 12 (Dec. 2015), p. 2496-2506
Assunto Cloreto cianúrico
Corantes fluorescentes : Benzazolas : Síntese orgânica
Corantes fluorescentes : Transferência protônica : Síntese orgânica
Fluorescência
Fotofísica
Transferencia protonica intramolecular no estado excitado
[en] Benzazole
[en] Cyanuric chloride
[en] ESIPT
[en] Fluorescence
[en] Large Stokes’ shift
[en] Reactive dye
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/141523
Arquivos Descrição Formato
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