Results 111 to 120 of about 1,549,159 (293)

Extended Fused Carbazole‐BODIPY, High Brightness NIR Organic Dyes

Angewandte Chemie, EarlyView.
Highly fused boron‐dipyrromethene (BODIPY) with a strong donor group has been synthesized, and their photophysical behaviors fully characterized. They exhibit outstanding brightness for fluorophores emitting in the NIR region. Water‐soluble nanoparticles filled with one of these dyes demonstrate high efficiency as the NIR II visualization agent ...
Fabien Ceugniet, Valentin Ott, Pascal Retailleau, Yann Bretonniere, Olivier Maury, Manon H. E. Bousquet, Lucie Sancey, Nicolas Leclerc, Denis Jacquemin, Gilles Ulrich   +9 more
wiley   +2 more sources

Nitration of 5,11-dihydroindolo[3,2-b]carbazoles and synthetic applications of their nitro-substituted derivatives

Beilstein Journal of Organic Chemistry, 2017
A new general approach to double nitration of 6,12-di(hetero)aryl-substituted and 6,12-unsubstituted 5,11-dialkyl-5,11-dihydroindolo[3,2-b]carbazoles by acetyl nitrate has been developed to obtain their 2,8-dinitro and 6,12-dinitro derivatives ...
Roman A. Irgashev, Nikita A. Kazin, Gennady L. Rusinov, Valery N. Charushin   +3 more
doaj   +1 more source

Synthesis and Characterisation of Polyaromatic Chalcones with Electron Donation

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In this study, a series of chalcone derivatives was successfully synthesized via condensation of 1-acetylpyrene with dimethylamine, diphenylamine or carbazole containing benzaldehyde derivatives at basic conditions.
Alparslan Atahan
doaj   +1 more source

Properties modulation of organic semi-conductors based on a donor-spiro-acceptor (D-spiro-A) molecular design: new host materials for efficient sky-blue PhOLEDs [PDF]

, 2015
International audienceFour high triplet org. semi-conductors based on the donor-spiro-acceptor design (D-spiro-A) have been synthesized. Their physicochem. and photophys.
Geffroy, Bernard, Jeannin, Olivier, Poriel, Cyril, Rault-Berthelot, Joëlle, Romain, Maxime, Tondelier, Denis   +5 more
core   +3 more sources

Electronic Spectra of Carbazole Derivatives

, 1967
The shift in the longest wavelength absorption band of substituted carbazole is theoretically calculat­ed. The calculation shows fair agreement with the experimentally determined values.
openaire   +1 more source

Enhanced Energy Transfer from a Metal–Organic Framework to a Highly Confined Organic Phosphorescent Dye

Advanced Science, EarlyView.
A phosphorescent dye was designed to fit in a hand‐to‐glove fashion into the 1D‐pore channels of MIL‐68(In). We synthesized MIL‐68(In) as powder and thin films, loaded the dye into the pores with controlled packing, and found that the phosphorescence and quantum yield are enhanced.
Bahram Hosseini Monjezi, Thomas Kasper, Gloria Hong, Changfeng Si, Robert Oestreich, Oliver Weingart, Peter G. Weidler, Christof Wöll, Eli Zysman‐Colman, Christoph Janiak, Stefan Bräse, Klaus Müller‐Buschbaum, Alexander Knebel   +12 more
wiley   +1 more source

Bridged Pyrroloindole‐CAYC‐Gold Complexes: Harnessing Weak Secondary Intramolecular Au···H−C(sp3) Interactions in Gold(I) Catalysis

Angewandte Chemie, EarlyView.
We present a new class of electronically and sterically hindered N‐heterocyclic carbenes, referred to as bridged cyclic (amino)ylide carbene (bCAYC), where 9H‐pyrrolo[1,2‐a]indole acted as carbene core and diaryl sulfonium as ylide partner. Corresponding bCAYC‐Au(I) exhibits a weak secondary intramolecular Au···H−C(sp3) interaction as a secondary ...
Sourav Sekhar Bera, Anurag Kumar, Pengcheng Gao, Sanghamitra Das, Roger Lalancette, Roman Szostak, Michal Szostak   +6 more
wiley   +2 more sources

Optoelectronic properties of triphenylamine based dyes for solar cell applications. A DFT study [PDF]

, 2018
Indexación: Scopus.GSM thanks to the Department of Chemistry at the Universidad Andres Bello, Concepcion, Chile. LHMH gratefully acknowledges financial support from CONACYT (Projects CB2015-257823) and to the Universidad Autónoma del Estado de Hidalgo ...
Alvarez-Romero, G.A., Bouachrine, M., Bouzzine, S.M., Fahim, Z.M.E., Hamidi, M., Hamidi, M.M., Mendoza-Huizar, L.H., Salgado-Morán, G.   +7 more
core   +1 more source

Semi‐Transparent Organic Photodiodes with Near‐Infrared Detection Fabricated by Inkjet Printing

Advanced Electronic Materials, EarlyView.
This work shows the inkjet printing of semi‐transparent and opaque organic photodiodes that enable light detection in the near‐infrared regime. Their transparency and high detection speed make them ideal for applications in soft robotics, wearable devices, and light communication systems.
Luis Arturo Ruiz‐Preciado, Peter Krebsbach, Mervin Seiberlich, Gerardo Hernandez‐Sosa   +3 more
wiley   +1 more source

Photocatalytic Cross‐Coupling of Phenols and Heteroaryl Halides With Machine Learning‐Guided Reaction Prediction

Angewandte Chemie, EarlyView.
Photocatalytic cross‐coupling: A redox‐neutral photochemical method enables direct C(sp2)─C(sp2) bond formation between phenols and heteroaryl halides using an organic dye and base. Complementary radical generation allows efficient cross‐coupling in up to 91% yield. Mechanistic studies, DFT, HTE, and machine learning rationalize and predict reactivity,
Matthew C. Carson, Alice Wu, Kalyana B. Duggal, Madeline E. Rotella, Marisa C. Kozlowski   +4 more
wiley   +2 more sources