Results 11 to 20 of about 2,249 (138)
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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Mechanochemical Activation of a Bridged-Exciplex Optical Force Probe. [PDF]
Adv Sci (Weinh)A bridged‐exciplex optical force probe is synthesized, switching from solvatochromic charge‐transfer emission in the latent state to intense locally excited emission upon activation. This dual photophysical response with additional changes in quantum yield and fluorescence lifetime enables precise environmental sensing and distinct optical readouts ...
Schumann R +8 more
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Orbital: The Electronic Journal of Chemistry, 2022 This work presents a proposal of experimental activity involving organic synthesis and solvatochromism of an organic molecule, correlating the content of organic chemistry and physical organic chemistry.
Taianne D’Angelo Korb +2 more
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Novel Method for Characterizing Humic Substances Using Fluorescent Solvatochromism. [PDF]
Sensors (Basel)Charge-transfer-type fluorochromes, which exhibit shifts in fluorescence intensity and emission wavelength in response to solvent polarity changes, have been widely employed to investigate solute–solvent interactions. Humic substances (HSs) are naturally
Sazawa K +6 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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N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole: Synthesis and Luminescent Solvatochromism
Chemistry Proceedings, 2021 N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole (BTDNMe2) was synthesized from the commercially available 2,1,3-benzothiadiazole (BTD) by nitration in a sulfonitric mixture, followed by a reduction of the nitro group and subsequent methylation with ...
Valentina Ferraro +2 more
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Photophysical Behavior and Sensing Response of Chalcone Containing Pyrene moiety [PDF]
Delta 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
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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 +5 more
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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 +5 more
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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 +2 more
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