scholarly journals Solid-state structure and optical properties of highly fluorescent diketopyrrolopyrrole derivatives synthesized by cross-coupling reaction

Tetrahedron ◽  
2010 ◽  
Vol 66 (21) ◽  
pp. 3736-3741 ◽  
Author(s):  
Junpei Kuwabara ◽  
Takuya Yamagata ◽  
Takaki Kanbara
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
State Structure ◽  
Solid State Structure ◽  
Cross Coupling Reaction

Effect of solid-state structure on optical properties of conjugated organic materials

1999 ◽  
Vol 102 (1-3) ◽  
pp. 1443-1446 ◽  
Author(s):  
Paul F. van Hutten ◽  
Hendrik-Jan Brouwer ◽  
Victor V. Krasnikov ◽  
Lahoussine Ouali ◽  
Ulf Stalmach ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Organic Materials ◽  
State Structure ◽  
Solid State Structure ◽  
Conjugated Organic Materials

Spiro-Bridged Ladder-Type Oligo(para -phenylene)s: Fine Tuning Solid State Structure and Optical Properties

2017 ◽  
Vol 27 (45) ◽  
pp. 1704077 ◽  
Author(s):  
Björn Kobin ◽  
Jutta Schwarz ◽  
Beatrice Braun-Cula ◽  
Moritz Eyer ◽  
Anton Zykov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Fine Tuning ◽  
State Structure ◽  
Solid State Structure

Synthesis of peri-Diarylated Naphthalimides via Double Decarboxylative Cross-Coupling Reaction

Synthesis ◽  
2019 ◽  
Vol 51 (15) ◽  
pp. 2915-2922 ◽  
Author(s):  
Kritchasorn Kantarod ◽  
Phiphob Naweephattana ◽  
Vichai Reutrakul ◽  
Manat Pohmakotr ◽  
Darunee Soorukram ◽  
...  
Keyword(s):  
Optical Properties ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Convenient Approach ◽  
Palladium Catalyzed

A facile method for the synthesis of peri-diarylated naphthalimides was developed by using a palladium-catalyzed double decarboxylative cross-coupling reaction. The present work offers a convenient approach for tuning the optical properties of naphthalimide derivatives.

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 Study of Chemical, Thermal, Mesomorphic, and Optical Properties of Terphenyls Modified with Nitrile Groups

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
M. L. Mota González ◽  
A. Carrillo Castillo ◽  
R. C. Ambrosio Lázaro ◽  
J. Flores Méndez ◽  
Mario Moreno ◽  
...  
Keyword(s):  
Optical Properties ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
H Nmr ◽  
Cross Coupling Reaction ◽  
Vis Spectroscopy

We report the synthesis, characterization, and the thermotropic and photoluminescence properties of dialkoxyterphenyls with (T12-CN and T12-2CN) and without (T12) nitrile groups. These terphenyls were prepared through the Suzuki-Miyaura cross-coupling reaction using a palladium-based catalyst. The products obtained were analyzed as powders or after being drop-casted or spin-coated on glass. Nuclear Magnetic Resonance (1H NMR) and Fourier Transform Infrared (FTIR) spectroscopy techniques confirmed the structure and purity of the synthesized terphenyls. The mesomorphic behavior was studied by differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and X-ray diffraction (XRD). T12 developed various mesophases, whereas T12-CN and T12-2CN displayed one single mesophase of low order over a wide temperature range. The films topology was studied by AFM and the optical properties were determined by ultraviolet-visible (UV-Vis) spectroscopy and spectrofluorometry. Higher roughness was found for the films prepared with the asymmetric terphenyl (T12-CN). The photoluminescence (PL) spectrum obtained for the asymmetric terphenyl (T12-CN) exhibited the expected characteristics with an emission band centered at 381 nm and an overtone around 760 nm.

scholarly journals Solid-state structure, solution-state behaviour and catalytic activity of electronically divergent C,N-chelating palladium–N-heterocyclic carbene complexes

2015 ◽  
Vol 44 (36) ◽  
pp. 15938-15948 ◽  
Author(s):  
Michael R. Chapman ◽  
Benjamin R. M. Lake ◽  
Christopher M. Pask ◽  
Bao N. Nguyen ◽  
Charlotte E. Willans
Keyword(s):  
Catalytic Activity ◽  
Solid State ◽  
Cross Coupling ◽  
State Structure ◽  
Carbene Complexes ◽  
Solid State Structure ◽  
Solution State ◽  
Structure Solution ◽  
State Behaviour

Electronically diverse pyridyl-substituted Pd(ii)-NHC complexes have been employed in Suzuki–Miyaura cross-coupling to yield a sterically congested tetra-ortho-substituted biaryl product.

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.

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.

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