Results 101 to 110 of about 4,021 (220)

Push–Pull Phenazine Fluorophores: Substituent‐Position Effects on Emission and Intermolecular Organization Modulated by Hydrogen Bonding and Molecular Symmetry

ChemistryEurope, Volume 4, Issue 6, June 2026.
Push–pull substitution activates fluorescence in the weakly emissive phenazine scaffold, producing photostable green‐to‐red emitters via a one‐step annulation. A systematic comparison of positional isomers reveals that the Etter‐rule‐directed hydrogen‐bonding patterns modulate the emission wavelength and crystal packing, while the molecular symmetry ...
Hiroki Sato, Masato Kudo, Jun Kumagai, Kohei Tsujimura, Nanami Hoshino, Yuito Abe, Hayato Sakai, Hiroshi Katagiri   +7 more
wiley   +1 more source

A computationally-derived model for the solvatochromism of p-phenolates with high predictive power

, 2018
We report that the positive, reverse or negative solvatochromism of p-phenolate-based dyes is highly correlated with the multireferential (MR) character of their ground-state wave function, with negative compounds presenting the highest degeneracy.
Raúl Mera-Adasme, Moisés Domínguez
core   +1 more source

Evaluation of Photophysical Properties and Biological Applications of Diarylmethanes

ChemistryOpen, Volume 15, Issue 6, June 2026.
The wide applications of diarylmethanes were investigated through various experimental and computational approaches. The solvent environment influences the electronic properties of diarylmethanes and hence their drug‐like properties. Interactions with PARP1 revealed stable binding supporting anticancer potential.
H. Ranjini Jenifer, Fateh V. Singh, M. M. Balamurali   +2 more
wiley   +1 more source

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

Liquids
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

A fluorescent photochromic diarylethene based on naphthalic anhydride with strong solvatochromism

, 2017
A diarylethene molecule consisting of an 1,8-naphthalic anhydride and two 2,5 dimethylthiophene which exhibits reversible fluorescence switching capacity as well as solvatochromism with red shift of the fluorescence maximum by more than 150 nm.
Song, L., Shangjun Chen, Xin Li, Li, Xin,, Liwen Song, Chen, S.   +5 more
core   +1 more source

Push–Pull Bridged Stilbenes as Small Solvatochromic Aggregation‐Induced Emission Luminogen: Design and Excited‐state Deactivation Dynamics

Aggregate
Aggregation‐induced emission luminogens (AIEgens) are typically large π‐conjugated molecules, but their low affinity and noninvasiveness toward analytes limit practical applications. To address this, smaller, more planar AIEgens are needed.
Takuya Tanaka, Hirosato Koyanagi, Takumi Ehara, Tomohiro Ryu, Kiyoshi Miyata, Satoshi Suzuki, Kazunobu Igawa, Ken Onda, Gen‐ichi Konishi   +8 more
doaj   +1 more source

Inverting the Solvatochromism of Pyridinium‑N‑phenolate Dyes by the Addition of a Second Pyridinium Unit

Three bipyridinium phenolates were synthesized, and their spectral behavior was recorded at various solvent polarities and compared to a classic pyridinium phenolate dye possessing only one pyridinium acceptor ring in its structure.
Moisés Domínguez (17790191), Fabián Melinao (17790188), Matías Vidal (10988141), Carolina Aliaga (2144944)   +3 more
core   +1 more source

Anionic merocyanine dyes based on thiazol-2-hydrazides: reverse solvatochromism, preferential solvation and multiparametric approaches to spectral shifts

, 2018
Reverse solvatochromism, preferential solvation and multiparametric approaches to spectral shifts of (4-nitro/cyanophenyl)-substituted thiazol-2-hydrazide colored merocyanine dyes are presented.
Arindam Mukhopadhyay, Krishna J. Mandal, Jarugu Narasimha Moorthy   +2 more
core   +1 more source

Theoretical computation of Betain B30 solvatochromism using a Polarizable Continuum Model

, 2014
We report in this paper the computation of optical properties of a solvatochromic probe using Time-Dependent Density Functional Theory methodology. Our protocol includes the use of an implicit solvent model to take into account the surrounding effects on
Assfeld, Xavier, Perpète, Eric A., Michaux, Catherine; id_orcid, Monari, Antonio, Etienne, Thibaud   +4 more
core   +1 more source

Utilização de corantes solvatocrômicos no planejamento de dispositivos solvatocrômicos e de sistemas ópticos de detecção de analitos aniônicos baseados em polímeros funcionais [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Uma série de 4-(fenilmetilenimino)fenóis nitrossubstituídos 1a-4a foi sintetizada e ...
Nandi, Leandro Guarezi
core