Results 11 to 20 of about 2,143 (192)

Photophysical Behavior and Sensing Response of Chalcone Containing Pyrene moiety [PDF]

open access: yesDelta Journal of Science, 2021
D–π–A dye composed of pyrene and thiophene units was synthesized and characterized using elemental, FT-IR, and mass analyses. The solvatochromic response was investigated in different solvents of various polarities.
Fathy Hassan   +4 more
doaj   +1 more source

Influence of plasmons on the luminescence properties of solvatochromic merocyanine dyes with different solvatochromism

open access: yesPhysical Chemistry Chemical Physics, 2023
The effect of localized surface plasmon resonance (LSPR) of a system consisting of a highly dipolar merocyanine dye and a silver nanoparticle (NP) was studied experimentally and theoretically.
Niyazbek Kh. Ibrayev   +7 more
openaire   +3 more sources

Rewritable acidochromic papers based on oxazolidine for anticounterfeiting and photosensing of polarity and pH of aqueous media

open access: yesScientific Reports, 2022
Oxazolidine is a new category of stimuli-chromic organic compounds with unique characteristics in response to polarity, pH changes, water, light, and metal ions that were well-known as solvatochromism, acidochromism, hydrochromism, photochromism, and ...
Bahareh Razavi   +2 more
doaj   +1 more source

Design of Promising aza-BODIPYs for Bioimaging and Sensing

open access: yesDesigns, 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   +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

open access: yesCrystals, 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   +5 more
doaj   +1 more source

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

open access: yesMolecules, 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   +2 more
doaj   +1 more source

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

open access: yesJournal 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

Solvatochromic covalent organic frameworks [PDF]

open access: yesNature Communications, 2018
AbstractCovalent organic frameworks (COFs) are an emerging class of highly tuneable crystalline, porous materials. Here we report the first COFs that change their electronic structure reversibly depending on the surrounding atmosphere. These COFs can act as solid-state supramolecular solvatochromic sensors that show a strong colour change when exposed ...
Ascherl, Laura   +9 more
openaire   +6 more sources

Prediction of Strong Solvatochromism in a Molecular Photocatalyst**

open access: yesChemistry – A European Journal, 2023
Abstract Based on quantum chemical calculations, we predict strong solvatochromism in a light‐driven molecular photocatalyst for hydrogen generation, that is we show that the electronic and optical properties of the photocatalyst strongly depend on the solvent it is dissolved in.
Miftahussurur Hamidi Putra   +3 more
openaire   +3 more sources

Solvatochromism and the solvation structure of benzophenone [PDF]

open access: yesThe Journal of Chemical Physics, 2013
Many complex molecular phenomena, including macromolecular association, protein folding, and chemical reactivity, are determined by the nuances of their electrostatic landscapes. The measurement of such electrostatic effects is nonetheless difficult, and is typically accomplished by exploiting a spectroscopic probe within the system of interest, such ...
Justin E, Elenewski, John C, Hackett
openaire   +2 more sources

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