Results 111 to 120 of about 7,506 (232)

Consecutive (Pseudo‐)Four‐Component Synthesis of Meta‐ and Ortho‐Biaryl Triarylamines with Tunable Emission and Redox Properties

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The combination of Suzuki and Buchwald–Hartwig coupling in (pseudo‐)four‐component reactions paves an efficient one‐pot route to twisted, redox‐active triarylamine (TAA) emitters. Biaryl substitution patterns and para‐substituents serve as key levers for tuning redox potentials, as well as absorption and emission energies, complemented and, by time ...
Regina Kohlbecher   +5 more
wiley   +1 more source

Use of DFT Calculations as a Tool for Designing New Solvatochromic Probes for Biological Applications

open access: yesLiquids
The intramolecular charge transfer behavior of push–pull dyes is the origin of their sensitivity to environment. Such compounds are of interest as probes for bioimaging and as biosensors to monitor cellular dynamics and molecular interactions. Those that
Cynthia M. Dupureur
doaj   +1 more source

Charge Transfer Emission in Oligotriarylamine-Triarylborane Compounds [PDF]

open access: yes, 2015
Donor–acceptor compounds exhibiting charge transfer emission are of interest in a variety of different contexts, for example, for nonlinear optical processes and for sensor applications.
Bonn, Annabell G., Wenger, Oliver S.
core   +2 more sources

Blue‐hazard‐free single‐emissive‐layer white organic LEDs based on an anti‐quenching narrowband blue emitter

open access: yesFlexMat, EarlyView.
A blue‐hazard‐free single‐emissive‐layer white OLED is realized using an anti‐quenching multiple‐resonance TADF emitter, BNCT. By integrating a sterically protected MR core with efficient energy transfer capability, BNCT enables warm‐white emission with high efficiency, negligible hazardous blue photons, and a simplified device architecture for next ...
Xiao‐Long Liu   +9 more
wiley   +1 more source

5-Arylazo-2,2´-bithiophenes: a novel promising series of NLO chromophores [PDF]

open access: yes, 2008
The synthesis of 5-arylazo- substituted bithiophenes and their UV-visible, solvatochromic and nonlinear optical properties (NLO) are described. In agreement with the solvatochromic data and also with the second-order molecular NLO characterization, the ...
Belsley, M.   +4 more
core   +1 more source

Cryo-solvatochromism in ionic liquids

open access: yesRSC Adv., 2014
The colour changing temperature of the thermo-solvatochromic solution of a chloro-nickel complex, di-(1-butyl-3-methylimidazolium) tetrachloronickelate, [bmim]2NiCl4 (0.14 mol L−1 in the photograph), in 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate, [C2OHmim]BF4, can be continuously decreased from above room temperature to well below 0 °C ...
Linpo Yu, George Z. Chen
openaire   +2 more sources

A green solvent processable, self‐doped N‐annulated perylene butyl tetraester applied as a solar cell cathode interlayer

open access: yesPolymer International, EarlyView.
A new organic molecular cathode interlayer is presented built upon the perylene butyl tetraester scaffold. The new molecule incorporates N‐annulation and a functional amine group to control optical, electrochemical and physical properties and delivers excellent solar cell performance. Abstract We report a new amino‐bay‐substituted, N‐annulated perylene
Kathryn M Wolfe   +7 more
wiley   +1 more source

Modulating the Optoelectronic Properties of Tripodal Fluorophores Through Fluorine‐Substituted Peripheral Phenyls

open access: yesChemistry – A European Journal, Volume 32, Issue 6, 9 February 2026.
C3‐symmetric D‐(π‐D‐π‐A)3 fluorophores featuring central triphenylamine donor, polarizable 2,5‐divinylthiophene linker, and a broad portfolio of fluorine‐based substituents show tunable (non)linear optical properties. ABSTRACT Fourteen novel tripodal fluorophores based on a central triphenylamine donor, electron‐rich, and polarizable divinylthiophene ...
Milan Klikar   +9 more
wiley   +1 more source

Solvatochromic microcavity ion sensors

open access: yes
A novel copper(II) ion sensor has been developed, achieving both a broad dynamic range and high sensitivity, effectively addressing the limitations of conventional fluorescence-based detection methods. The sensor exploits the hydrolysis reaction between rhodamine B hydrazide (RBH) and copper(II) ions, with optical signal amplification enabled by a ...
Zhao, Shuoying   +4 more
openaire   +2 more sources

Donor-acceptor substituted phenylethynyltriphenylenes – excited state intramolecular charge transfer, solvatochromic absorption and fluorescence emission

open access: yesBeilstein Journal of Organic Chemistry, 2010
Several 2-(phenylethynyl)triphenylene derivatives bearing electron donor and acceptor substituents on the phenyl rings have been synthesized. The absorption and fluorescence emission properties of these molecules have been studied in solvents of ...
Ritesh Nandy, Sethuraman Sankararaman
doaj   +1 more source

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