Effect of the cyano group on solid state photophysical behavior of tetraphenylethene substituted benzothiadiazoles

2015 ◽  
Vol 3 (35) ◽  
pp. 9063-9068 ◽  
Author(s):  
Thaksen Jadhav ◽  
Bhausaheb Dhokale ◽  
Rajneesh Misra
Keyword(s):  
Solid State ◽  
Cyano Group ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor ◽  
Photophysical Behavior

Two unsymmetrical tetraphenylethene (TPE) substituted Donor–Acceptor (D–A) benzothiadiazoles (BTDs) 3a, and 3b were designed and synthesized by the Suzuki cross-coupling reaction.

ChemInform Abstract: Donor-Acceptor Substituted 2-Phenylpyridines by Means of Reductive C,C-Cross Coupling Reaction.

ChemInform ◽  
2016 ◽  
Vol 47 (52) ◽  
Author(s):  
Sebastian Triller ◽  
Tim Dittmann ◽  
Mareike Bendig ◽  
Jan Schnelle ◽  
Tom Friedmann ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor

Synthesis and electrochemical polymerization of diketopyrrolopyrrole based donor–acceptor–donor monomers containing 3,6- and 2,7-linked carbazoles

2016 ◽  
Vol 7 (39) ◽  
pp. 6110-6119 ◽  
Author(s):  
Merve Akbayrak ◽  
Ahmet M. Önal
Keyword(s):  
Electrochemical Polymerization ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Type ◽  
Donor Acceptor

Three new donor–acceptor–donor type monomers bearing 2,7- or 3,6-linked carbazoles as the donor unit and diketopyrrolopyrrole as the acceptor unit were synthesized via a Suzuki cross coupling reaction.

Selective Stepwise Suzuki Cross-Coupling Reaction for the Modelling of Photosynthetic Donor−Acceptor Systems

2010 ◽  
Vol 12 (1) ◽  
pp. 196-199 ◽  
Author(s):  
Mikhail A. Filatov ◽  
Roger Guilard ◽  
Pierre D. Harvey
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor

T-Shaped donor–acceptor–donor type tetraphenylethylene substituted quinoxaline derivatives: aggregation-induced emission and mechanochromism

2017 ◽  
Vol 41 (17) ◽  
pp. 9346-9353 ◽  
Author(s):  
Anupama Ekbote ◽  
Thaksen Jadhav ◽  
Rajneesh Misra
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Aggregation Induced Emission ◽  
Cross Coupling Reaction ◽  
Quinoxaline Derivatives ◽  
Donor Type ◽  
Donor Acceptor

T-Shaped D–A–D type tetraphenylethylene (TPE) substituted acenapthene-quinoxaline1and TPE substituted phenanthrene quinoxaline2were synthesized by the Suzuki cross-coupling reaction and exhibits highly reversible mechanochromic behavior.

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

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1742 ◽  
Author(s):  
Sylvain Achelle ◽  
Julián Rodríguez-López ◽  
Massinissa Larbani ◽  
Rodrigo Plaza-Pedroche ◽  
Françoise Robin-le Guen
Keyword(s):  
Solid State ◽  
Blue Light ◽  
Photophysical Properties ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Pyrimidine Derivatives ◽  
Absorption Bands ◽  
Cross Coupling Reaction

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.

scholarly journals Synthesis and Photophysical Properties of Substituted Pyrimidines

2019 ◽  
Author(s):  
Sylvain Achelle ◽  
Julián Rodríguez-López ◽  
Massinissa Larbani ◽  
Rodrigo Plaza-Pedroche ◽  
Françoise Robin-le Guen
Keyword(s):  
Solid State ◽  
Blue Light ◽  
Photophysical Properties ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Pyrimidine Derivatives ◽  
Absorption Bands ◽  
Cross Coupling Reaction

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.

Aggregation induced emission and mechanochromism in pyrenoimidazoles

2015 ◽  
Vol 3 (38) ◽  
pp. 9981-9988 ◽  
Author(s):  
Thaksen Jadhav ◽  
Bhausaheb Dhokale ◽  
Shaikh M. Mobin ◽  
Rajneesh Misra
Keyword(s):  
Solid State ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Color Contrast ◽  
Aggregation Induced Emission ◽  
Cross Coupling Reaction

Pyrene-based solid state emitters 3a and 3b were designed and synthesized by the Pd-catalyzed Suzuki cross-coupling reaction. Pyrenoimidazoles 3a and 3b exhibit strong AIE and reversible mechanochromic behavior with color contrast between blue and green.

Ferromagnetic Chain Based on Verdazyl-Nitroxide Diradical

2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Ferromagnetic Coupling ◽  
Nitronyl Nitroxide ◽  
Triplet Ground State ◽  
One Dimensional ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed ◽  
Ferromagnetic Chain ◽  
High Yields

<p>Verdazyl-nitroxide diradicals were synthesized using the palladium-catalyzed cross-coupling reaction of the corresponding iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields (up to 82%). The synthesized diradicals were found to be highly thermally stable and have a singlet (D<i>E</i><sub>ST</sub> » -64 cm<sup>–1</sup>) or triplet ground state (D<i>E</i><sub>ST</sub> ³ 25 and 100 cm<sup>–1</sup>), depending on which canonical hydrocarbon diradical type they belong to. Upon crystallization, triplet diradicals form unique one-dimensional (1D) spin <i>S</i> = 1 chains of organic diradicals with intrachain ferromagnetic coupling of <i>J</i>′/<i>k</i><sub>B</sub> from 3 to 6 K.</p>

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