Journal ArticleDOI
Synthesis and photophysical study of novel coumarin based styryl dyes
TLDR
In this article, new organic dyes comprising phenothiazine, carbazole, indole, diphenylamine moieties, as the electron donors, and coumarin ring as electron acceptor through ethylenic π bridge were synthesized and characterized.About:
This article is published in Dyes and Pigments.The article was published on 2015-09-01. It has received 17 citations till now. The article focuses on the topics: Carbazole & Solvatochromism.read more
Citations
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Journal ArticleDOI
Unsymmetrical and Symmetrical Push–Pull Phenothiazines
TL;DR: The single-photon absorption on phenothiazines 3-7 reveals that substitution of 1,1,4,4-tetracyanobutadiene (TCBD) and a cyclohexa-2,5-diene-1, 4-diylidene-expanded TCBD unit results in strong intramolecular charge transfer and lowering of the LUMO energy level.
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Tuning the optoelectronic properties of phenothiazine-based D‒A-type emitters through changing acceptor pattern
TL;DR: In this paper, the C'C bond of the phenanthro[9,10-d ]imidazole acceptor was broken, and a new acceptor with a more twisted conformation was obtained.
Journal ArticleDOI
Coumarin-indole conjugate donor-acceptor system: Synthesis, photophysical properties, anion sensing ability, theoretical and biological activity studies of two coumarin-indole based push-pull dyes
Tuğçe Aksungur,Burcu Aydıner,Nurgül Seferoğlu,Müjgan Özkütük,Leyla Arslan,Yasemin Reis,Leyla Açık,Zeynel Seferoğlu +7 more
TL;DR: In this paper, two coumarin-indole conjugate fluorescent dyes having donor-acceptor-donor (D-A-D) (CI-1 and CI-2 ) were synthesized, and characterized using IR, 1 H/ 13 C NMR and HRMS.
Journal ArticleDOI
Synthesis and spectral properties of coumarins derivatives fluorescence emitters: Experiment and DFT/TDDFT calculations
TL;DR: In this article, high-fluorescence, 3-(p-nitrophenyl)-7-diethylamino and 3-cyano-7-diminocoumarin derivatives differing by the position of substituents and acceptors groups were investigated and characterized using 1H, 13C NMR and FT-IR spectroscopy analysis.
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Solvatochromic fluorescence properties of phenothiazine-based dyes involving thiazolo[4,5-b]quinoxaline and benzo[e]indole as strong acceptors.
TL;DR: The present work describes the photophysical properties of two newly synthesized compounds, namely (E)-10-butyl-3-(2-(thiazolo[4,5-b]quinoxalin-2-yl)vinyl)-10H-phenothiazine (PTQ) and (E), indicating that the excited states of both dyes behave differently with respect to solvent polarity.
References
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Journal ArticleDOI
The use of coumarins as environmentally-sensitive fluorescent probes of heterogeneous inclusion systems
TL;DR: The use of coumarins to probe such heterogeneous systems using fluorescence spectroscopy, such as supramolecular host cavities, micelles, polymers and solids, is reviewed.
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Colorimetric test kit for Cu2+ detection.
TL;DR: A coumarin-based colorimetric chemosensor 1 exhibits good sensitivity and selectivity for the copper cation over other cations both in aqueous solution and on paper-made test kits.
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Heterocycles as Structural Units in New Optical Brighteners
TL;DR: In this article, the syntheses, properties, and applications of new optical brighteners are described with references to patent literature, and they are used in detergents, textiles, paper, plastics, and paints.
Journal ArticleDOI
Efficient green coumarin dopants for organic light-emitting devices.
Meng-Ting Lee,Chia-Kuo Yen,Wen-Ping Yang,Hsian-Hung Chen,Chi-Hung Liao,Chih-Hung Tsai,Chin H. Chen +6 more
TL;DR: C-545P has good thermal properties and photostability, and when fabricated as a dopant in an Alq(3)-hosted OLED device, it shows notable improvement in luminance efficiency and is more resistant to concentration quenching than C-545T.
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