Results 11 to 20 of about 4,021 (220)
The UV-Visible Absorption Spectra of Coumarin and Nile Red in Aqueous Solution: A Polarizable QM/MM Study [PDF]
MoleculesWe present a comprehensive computational study of the UV-visible absorption spectra of 7-methoxycoumarin and Nile red in aqueous solution. Our fully atomistic workflow couples classical molecular dynamics (MD) with polarizable QM/MM based on fluctuating ...
Tommaso Giovannini +2 more
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SOLVATOCROMISMO E AS ESCALAS EMPÍRICAS DE POLARIDADE DO SOLVENTE: UMA REVISÃO [PDF]
Química Nova, 2023 The term solvatochromism is used to describe the changes in the optical properties of a dye molecule by influence of the solvent characteristics. Solvatochromic shifts are governed by intermolecular interactions between solute-solvent that can be either ...
Ingrid Maliszewski Paczkowski +1 more
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Assessing the pharmacological potential of selected xanthene derivatives [PDF]
Journal 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
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Molecules, 2022 Solvatochromic dyes are utilized in various chemical and biological media as chemical sensors. Unfortunately, there is no simple way to predict the type of solvatochromism based on the structure of the dye alone, which restricts their design and ...
Andrés Aracena, Moisés Domínguez
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Physical 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
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Molecules, 2021 Two 4-tolyl-1,2,4-triazol-1-ium methylids, namely 4-tolyl-1,2,4-triazol-1-ium-phenacylid and 4-tolyl-1,2,4-triazol-1-ium-4′-nitro-phenacylid, are studied from solvatochromic point of view in binary solvent mixtures of water with ethanol and water with ...
Dana Ortansa Dorohoi +7 more
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Synthesis and Optical Properties of a Series of Push-Pull Dyes Based on Pyrene as the Electron Donor
Molecules, 2023 Fifteen push-pull dyes comprising the tetracyclic polyaromatic pyrene have been designed and synthesized. The optical properties of the fifteen dyes have been examined in twenty-two solvents of different polarities.
Thanh-Tuân Bui +2 more
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Molecules, 2023 Amino-[1,1′]-biphenyl-containing 3-aryl-[1,2,4]triazolo[4,3-c]quinazoline derivatives with fluorescent properties have been designed and synthesized. The type of annelation of the triazole ring to the pyrimidine one has been unambiguously confirmed by ...
Alexandra E. Kopotilova +9 more
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Sensors, 2023 A new water-soluble poly(propylene imine) dendrimer (PPI) modified with 4-sulfo-1,8-naphthalimid units (SNID) and its related structure monomer analog (SNIM) has been prepared by a simple synthesis.
Awad I. Said +2 more
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Solvatochromic covalent organic frameworks [PDF]
Nature 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