Results 21 to 30 of about 2,249 (138)

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

Thermally tunable naphthalene diimide solvates enable selective sensing, reversible photochromism, and anti-counterfeiting applications. [PDF]

open access: yesFront Chem
Recent studies have highlighted the potential of naphthalene diimide (NDI)-based molecules for their stimuli-responsive and optical properties. In this work, we report two naphthalene diimide (NDI)-based solvates, designated as NDI-1 and NDI-2, were ...
Kaur L   +5 more
europepmc   +2 more sources

Solvation simplified

open access: yesQuímica Nova, 2010
The effects of solvents on chemical phenomena is complex because there are various solute-solvent interaction mechanisms. Solvatochromism refers to the effects of solvents on the spectra of probes. The study of this phenomenon sheds light on the relative
Omar A. El Seoud
doaj   +1 more source

Solvent, substituents and pH effects towards the spectral shifts of some highly colored indicators [PDF]

open access: yesJournal of the Serbian Chemical Society, 2017
The solvatochromic responses of six indicators namely Sudan orange, Alizarin yellow R, Aurin tricarboxylic acid, Alizarin yellow GG, Titan yellow and Eriochrome black-T, dissolved in seven solvents of different polarities, have been measured at room ...
Masoud Mamdouh S.   +2 more
doaj   +1 more source

Polarity-Dependent Twisted Intramolecular Charge Transfer in Diethylamino Coumarin Revealed by Ultrafast Spectroscopy

open access: yesChemosensors, 2022
Twisting intramolecular charge transfer (TICT) is a common nonradiative relaxation pathway for a molecule with a flexible substituent, effectively reducing the fluorescence quantum yield (FQY) by swift twisting motions.
Jiawei Liu, Cheng Chen, Chong Fang
doaj   +1 more source

Assessing the pharmacological potential of selected xanthene derivatives [PDF]

open access: yesJournal of the Serbian Chemical Society, 2023
A convenient and efficient approach toward the synthesis of seven aromatically substituted xanthendiones 1‒7 and one structurally-related xanthenone 8 through condensation of dimedone and the appropriate aromatic aldehyde is reported.
Lazić Anita M.   +3 more
doaj   +1 more source

Viscosity-Sensitive Solvatochromic Fluorescent Probes for Lipid Droplets Staining

open access: yesBiosensors, 2022
Lipid droplets (LDs) are simple intracellular storage sites for neutral lipids and exhibit important impact on many physiological processes. For example, the changes in the polar microenvironment inside LDs could affect physiological processes, such as ...
Mao-Hua Wang   +3 more
doaj   +1 more source

Reichardt’s Dye-Based Solvent Polarity and Abraham Solvent Parameters: Examining Correlations and Predictive Modeling

open access: yesLiquids, 2023
The concept of “solvent polarity” is widely used to explain the effects of using different solvents in various scientific applications. However, a consensus regarding its definition and quantitative measure is still lacking, hindering progress in solvent-
William E. Acree, Andrew S. I. D. Lang
doaj   +1 more source

Effect of Counterion on the Solvatochromic Properties of Heteroleptic Chelate Copper(II) Complexes

open access: yesJournal of Spectroscopy, 2013
A series of heteroleptic chelate copper(II) complexes of the type [Cu(L)(acac)]X where acac = acetylacetonate; L = N,N′-1,6-bis(2-fluorophenyl)-2,5-diazahexane; X=CIO4-, BPh4-, PF6-, and BF4- have been prepared and characterized by elemental analyses, IR
Hamid Golchoubian, Hakimeh Fazilati
doaj   +1 more source

Solvatochromism of N-aryl-phenylacetamides

open access: yesZaštita Materijala, 2016
Amide derivates are biologically active compounds and they are widely used in all spheres of life. Therefore, it is very important to know their physical-chemical properties.
Suzana Lj. Apostolov   +2 more
doaj   +1 more source

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