Crown Ethers Assisted Cesium Extraction from Aqueous Solutions into a Hydrophobic Room Temperature Ionic Liquid 1-Butyl-3-methylimidazolium Bis[(trifluoromethyl)sulfonyl]imide

Andrey, G Vendilo; Vyacheslav, I Chistov; Julia, M Dikareva; Popov, Konstantin

doi:10.6060/mhc141242p

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…Such complexes are held together in unique structural relationships by electrostatic attraction between cation and negative end of C–O dipoles except those of full covalent bond. The firmness of the aforesaid crown ether–guest complexes strongly depends on how well the cation moiety fits into the ring of the polyether, influenced by the charge density of the cation, the nature, and the number of the heteroatoms. − …”

Section: Introductionmentioning

confidence: 99%

Evidences for Inclusion and Encapsulation of an Ionic liquid with β-CD and 18-C-6 in Aqueous Environments by Physicochemical Investigation

et al. 2018

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The interface between pyrrolidinium-based ionic liquid, i.e., 1-ethyl-1-methylpyrrolidinium bromide, with β-cyclodextrin and 18-crown-6 solution have been compared and explored by means of density, viscosity, refractive index, electrical conductance and surface tension, FTIR, H nuclear magnetic resonance, 2D ROESY NMR, and high resolution mass spectroscopy studies. Limiting apparent molar volumes (ϕ), experimental slopes (S) interpreted in terms of inclusion and interaction (ion-solvent, ion-ion). Establishment of binding affinity were discussed in molecular terms supported this inclusion complexation and encapsulation interaction process. The result shows that the stability of the resulting complexes of β-cyclodextrin:[EMPyrr] and 18-crown-6:[EMPyrr] is based on the geometrical and spectrometric data. Host guest chemistry of the five-membered nitrogen containing cation with two different macro cyclic hosts is supported by studying NMR. HRMS has been used to support the complexation process with the proper stoichiometry ratio. The solid complex formations were established by Fourier transform infrared study.

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Section: Introductionmentioning

confidence: 99%

Evidences for Inclusion and Encapsulation of an Ionic liquid with β-CD and 18-C-6 in Aqueous Environments by Physicochemical Investigation

et al. 2018

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“…do not affect the detection efficiency of aluminium. [35][36][37][38][39][40][41][42][43][44][45][46] and calixarenes [38-41, 43, 44, 46]) are increasingly used for the efficient and selective extraction of radionuclides and other metals. The extraction of radionuclides with water-soluble calix [4]arenes, crown ether compounds, as well as the use of solid extractants (TVEX) impregnated with functionalized calixarenes are investigated.…”

Section: Interfering Effect Of Various Ions On the Determination Of Almentioning

confidence: 99%

Determination of Metals and Radionuclides by Newest Functionalized Reagents in Liquid Media

Shapovalov¹,

Krasnoperova²,

Yukhno³

et al. 2021

interconf

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The conditions for the formation of metal complexes (aluminium, radionuclides) in solutions are considered. The properties of solid extractants (TVEX) and their application for the selective extraction of metals and radionuclides are discussed. The extraction of 90Sr, 90Y, 137Cs and U(VI) radionuclides from aqueous TVEX solutions impregnated with calixarenes C45 and CIP67 has been studied. The use of surfactants in combination with OAR (PA) is a typical example of the fact that the analytical capabilities of even well-known reagents are far from exhausted, and the use of functionalized reagents can significantly improve the basic analytical characteristics of metal detection.

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“…1 The discovery of crown ethers and the numerous remarkable attributes possessed by the crown compounds has made a great contribution to the metal-ligand interactions research. 2 However, discrete crown ethers suffer from some serious limitations, including expense and toxicity, which restrict them being widely used. Therefore, the applications of crown ether polymer systems have expanded greatly in recent years.…”

Section: Introductionmentioning

confidence: 99%

Polystyrene/poly(dibenzo-18-crown-6) composite nanofibers for the selective adsorption of plasma catecholamines

et al. 2017

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Crown Ethers Assisted Cesium Extraction from Aqueous Solutions into a Hydrophobic Room Temperature Ionic Liquid 1-Butyl-3-methylimidazolium Bis[(trifluoromethyl)sulfonyl]imide

Cited by 5 publications

References 21 publications

Evidences for Inclusion and Encapsulation of an Ionic liquid with β-CD and 18-C-6 in Aqueous Environments by Physicochemical Investigation

Evidences for Inclusion and Encapsulation of an Ionic liquid with β-CD and 18-C-6 in Aqueous Environments by Physicochemical Investigation

Determination of Metals and Radionuclides by Newest Functionalized Reagents in Liquid Media

Polystyrene/poly(dibenzo-18-crown-6) composite nanofibers for the selective adsorption of plasma catecholamines

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