Results 41 to 50 of about 7,561 (220)

Design of Promising aza-BODIPYs for Bioimaging and Sensing

Designs, 2022
The obtainment of new luminophores for molecular sensorics of biosystems is becoming one of the urgent tasks in the field of chemical synthesis. The solution to each practical problem imposes its own limitations in the design of new structures with ...
Dmitry Merkushev, Olga Vodyanova, Felix Telegin, Pavel Melnikov, Nikolay Yashtulov, Yuriy Marfin   +5 more
doaj   +1 more source

Donor–Acceptor Pentacene Analogues With Near‐Infrared Emission and Tunable Aromaticity

Angewandte Chemie, EarlyView.
Air‐ and photostable heterocyclic pentacene analogues with donor and acceptor groups flanking a para‐quinodimethane core exhibit large dipole moments, narrow bandgaps, reversible redox behavior, and NIR‐I to NIR‐II absorption and emission with pronounced solvatochromism.
Krzysztof Nowak, Olaf Morawski, Muhammad Yasir Mehboob, Maja Morawiak, Krzysztof Noworyta, Cina Foroutan‐Nejad, Marek Grzybowski   +6 more
wiley   +2 more sources

Synthesis and solvatochromism studies of novel bis(indolyl)methanes bearing functionalized arylthiophene groups as new colored materials [PDF]

, 2014
The demand for dyes with solvatochromic properties has increased in the last few years, mainly due to their wide range of applications in the analytical and industrial fields, such as in the textile industry.
Batista, Rosa Maria Ferreira, Costa, Susana P. G., Lodeiro, Carlos, Oliveira, Elisabete J., Raposo, M. Manuela M.   +4 more
core   +1 more source

Highly Efficient Mechanochromic Thermally Activated Delayed Fluorescence in the Deep Red to Near‐Infrared in Copper(I) [2.2]Isoindolinophanyl‐Carbene Carbazolates

Angewandte Chemie, EarlyView.
Electrophilic [2.2]isoindolinophanyl‐based carbene iPC has been employed as charge‐transfer acceptor ligand in a series of [Cu(iPC)(carbazolate)], which show mechanochromism and environment‐dependent luminescence due to intermolecular C─‐H‐π interactions.
André M. T. Muthig, Sabyasachi Maity, Andreas Prüfer, Justin Krieger, Andrei Belyaev, Jan‐Benedikt Weiß, Sebastian Henke, Benjamin Hupp, Björn Ewald, Jens Pflaum, Andreas Steffen   +10 more
wiley   +2 more sources

Synthesis of novel multifunctional carbazole-based molecules and their thermal, electrochemical and optical properties

Beilstein Journal of Organic Chemistry, 2020
Two novel carbazole-based compounds 7a and 7b were synthesised as potential candidates for application in organic electronics. The materials were fully characterised by NMR spectroscopy, mass spectrometry, FTIR, thermogravimetric analysis, differential ...
Nuray Altinolcek, Ahmet Battal, Mustafa Tavasli, William J. Peveler, Holly A. Yu, Peter J. Skabara   +5 more
doaj   +1 more source

Synthesis of Novel Aqua ƞ⁴-NNNO/Cu(II) Complexes as Rapid and Selective Oxidative Catalysts for O-Catechol: Fluorescence, Spectral, Chromotropism and Thermal Analyses

Crystals, 2021
A new tetradentate Schiff base (SB), (E)-4-fluoro-2-(1-((2-(piperazin-1-yl)ethyl)imino)ethyl)phenol, was synthesized from condensation of 2-(1-piperazinyl)ethylamine and 5-fluoro-2-hydroxyacetophenone.
Amjad M. Shraim, Kifah S. M. Salih, Ranim E. Al-Soufi, Soaad R. Al-Mhini, Mohammad I. Ahmad, Ismail Warad   +5 more
doaj   +1 more source

Solvatochromism and electrophilicity

Chemical Physics Letters, 2011
Abstract Solvatochromic dyes that exhibit a negative or a positive behaviour may be distinguished and their solvatochromism predicted with the aid of DFT-based indices, such as their electrophilicity ω , hardness η and by the Fukui electrophilic functions f G + of the donor and acceptor moieties of the molecule, calculated in the ...
Caroli Rezende, Marcos, Dominguez, Moises, Aracena, Andres, Millan, Daniela   +3 more
openaire   +4 more sources

A Family of Ethyl N-Salicylideneglycinate Dyes Stabilized by Intramolecular Hydrogen Bonding: Photophysical Properties and Computational Study

Molecules, 2021
In this work we report solvatochromic and luminescent properties of ethyl N-salicylideneglycinate (1), ethyl N-(5-methoxysalicylidene)glycinate (2), ethyl N-(5-bromosalicylidene)glycinate (3), and ethyl N-(5-nitrosalicylidene)glycinate (4) dyes.
Larisa E. Alkhimova, Maria G. Babashkina, Damir A. Safin   +2 more
doaj   +1 more source

Preferential solvation of quercetin in aqueous aprotic solvent mixtures [PDF]

Journal of the Serbian Chemical Society, 2020
Solvatochromism of quercetin was studied in binary mixtures of water with dimethyl sulfoxide, N,N-dimethylformamide and N,N-dimethylacetamide at 25 °C by UV–Vis measurements.
Faraji Mohammad, Farajtabar Ali
doaj   +1 more source

How good is the generalized Langevin equation to describe the dynamics of photo-induced electron transfer in fluid solution?

, 2017
The dynamics of unimolecular photo-triggered reactions can be strongly affected by the surrounding medium. An accurate description of these reactions requires knowing the free energy surface (FES) and the friction felt by the reactants.
Angulo, Gonzalo, Jędrak, Jakub, Ochab-Marcinek, Anna, Pasitsuparoad, Pakorn, Radzewicz, Czesław, Rosspeintner, Arnulf, Wnuk, Paweł   +6 more
core   +2 more sources