Articles with "benzo crown" as a keyword



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Photophysical and antimicrobial properties of new double-armed benzo-15-crown-5 ligands and complexes

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Published in 2019 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-019-03741-3

Abstract: New double-armed crown ether ligands linked to pyridine derivatives have been synthesized and characterized. These macrocyclic ligands (1–5) have been synthesized by the reactions of 4′,5′-bis(bromomethyl)benzo-15-crown-5 with 3-hydroxy pyridine derivatives. A series of Na+, K+… read more here.

Keywords: double armed; benzo crown; crown ether; photophysical antimicrobial ... See more keywords
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Acylated and alkylated benzo(crown-ethers) form ion-dependent ion channels in biological membranes.

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Published in 2022 at "Biophysical journal"

DOI: 10.1016/j.bpj.2022.01.026

Abstract: Synthetic ion channels based on benzo(crown-ether) compounds have been previously reported to function as ion selective channels in planar lipid bilayers, with hydrogen bonding networks implicated in the formation of self-aggregated complexes. Herein, we report… read more here.

Keywords: ion channels; benzo crown; crown ethers; biological membranes ... See more keywords
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Synthesis and applications of (5-substituted benzimidazolo)-benzo-15-crown-5 and 4,4′-bis-benzimidazolo-dibenzo-15-crown-5 for the colorimetric detection of Au3+

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Published in 2019 at "Synthetic Communications"

DOI: 10.1080/00397911.2019.1599951

Abstract: AbSTRACT In the present work, we have reported the synthesis of benzimidazoles functionalized crown ether derivatives of 4-formyl benzo-15-crown-5/4,4′-diformyl dibenzo-15-crown-5 and substituted diamine pyridine using sulfamic acid as a catalyst in DMSO. These molecules are… read more here.

Keywords: benzo crown; dibenzo crown; applications substituted; benzimidazolo benzo ... See more keywords
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Effects of Side-Chain Substituents in Benzo-15-Crown-5 on Lithium Extraction

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Published in 2018 at "Russian Journal of Inorganic Chemistry"

DOI: 10.1134/s0036023618010059

Abstract: Chloroform–water extraction systems have been studied using crown-ethers as extracting agents, namely: benzo-15-crown-5 (B15C5), 2,3-naphtho-15-crown-5 (N15C5), 4′-nitro-benzo-15-crown-5 (NO2B15C5), 4′-tert-butyl-benzo-15-crown-5 (TBB15C5), and 4′-acetyl-benzo-15-crown-5 (AcB15C5). Extraction isotherms of these systems have been obtained, and an attempt made… read more here.

Keywords: extraction; chain substituents; effects side; benzo crown ... See more keywords
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Solubilization and Photochemical Stability of Octa[(4′-Benzo-15-Crown-5)Oxy]-Phthalocyanines in Aqueous Micellar Solutions

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Published in 2018 at "Protection of Metals and Physical Chemistry of Surfaces"

DOI: 10.1134/s2070205118060126

Abstract: Methods of absorption and fluorescence spectroscopy and, in some cases, small angle X-ray scattering, are used to study solubilization and supramolecular organization of octa[(4'-benzo-15-crown-5)-oxy]phthalocyanines (Pc), H2cr8Pc, and Mgcr8Pc in an aqueous medium in the presence… read more here.

Keywords: benzo crown; oxy phthalocyanines; sodium; crown oxy ... See more keywords
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A study on the viscosity, density, and derivative properties of 1-alkyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imides with benzo-15-crown-5 binary mixtures

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Published in 2023 at "Journal of Chemical Research"

DOI: 10.1177/17475198231156358

Abstract: The essential factors that affect the interfacial mass transfer rate of crown ether–ionic liquid systems are studied by examining the physicochemical properties of mixtures of ionic liquids with benzo-15-crown-5. In the present work, the 1-alkyl-3-methylimidazolium… read more here.

Keywords: ionic liquid; benzo crown; viscosity density; binary mixtures ... See more keywords