نتایج جستجو برای: Supramolecular ionic liquids

تعداد نتایج: 71458  

Journal: :Physical chemistry chemical physics : PCCP 2011
Li Zhang Ye Tian Minghua Liu

The self-assembly and supramolecular chirality of a dianionic tetrakis(4-sulfonatophenyl) porphyrin (TPPS) in the presence of ionic liquids, 1-alkyl-3-methylimidazolium tetrafluoroborate (alkyl = C(2), C(4) or C(6), abbreviated as C(2)mimBF(4), C(4)mimBF(4) and C(6)mimBF(4), respectively), have been investigated. It has been confirmed that mimBF(4) ionic liquids significantly promoted the J-agg...

Journal: :Soft matter 2014
Yumi Ishioka Nami Minakuchi Minoru Mizuhata Tatsuo Maruyama

Supramolecular gelators comprising 1,3,5-benzenetricarboxylic acids and amino acid methyl esters (glycine, L-alanine, L-valine, L-leucine, L-methionine, and L-phenylalanine) for ionic liquids were developed. Ten types of ionic liquids were gelated using the above-mentioned gelators at relatively low concentrations. Field emission-scanning electron microscopy and confocal laser scanning microsco...

Journal: :Faraday discussions 2012
David A Turton Thomas Sonnleitner Alex Ortner Markus Walther Glenn Hefter Kenneth R Seddon Simona Stana Natalia V Plechkova Richard Buchner Klaas Wynne

The structure and dynamics of ionic liquids (ILs) are unusual due to the strong interactions between the ions and counter ions. These microscopic properties determine the bulk transport properties critical to applications of ILs such as advanced fuel cells. The terahertz dynamics and slower relaxations of simple alkylammonium nitrate protic ionic liquids (PILs) are here studied using femtosecon...

Journal: :Chemical communications 2015
T Sukhbaatar S Dourdain R Turgis J Rey G Arrachart S Pellet-Rostaing

Ionic liquids have many favorable properties over conventional diluents in solvent extraction. They provide an environmentally benign feature, adjustable polarity and, in some cases, higher extraction performances that remain however not predictable. As it may have a major role in extraction mechanisms, we evidence the supramolecular aggregation of HDEHP/TOPO extractant molecules in the [OMim][...

Journal: :Journal of the American Chemical Society 2008
Michel Wathier Mark W Grinstaff

The synthesis of a supramolecular ionic network, its physical properties, and the use of this network property to form macroscopic porphyrin fibers are described. These ionic networks are compared to ionic liquids. Current ionic liquid compositions have a charge and molar ratio of 1:1 where an anionic species is matched with a cationic species; however, alteration of this molar ratio while main...

Journal: :Chemistry 2021

This themed issue of Chemistry is in honor Professor Christoph Janiak on the occasion his 60th birthday, and celebrates innovative contributions to fields supramolecular chemistry, coordination polymers, networks metal-organic frameworks, inorganic/organic hybrid materials inorganic from ionic liquids [...]

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

ژورنال: مواد پرانرژی 2015

A hypergolic bipropellant s consist of fuels and oxidizers that can ignite rapidly upon mixing without external ignition devices . This self –ignition technology makes the engine ignition more reliable with repeated use. Recently, ionic liquids with the dicyanamide anion which shown good hypergolic properties when contacted with common oxidizer such as concentrated nitric acid, were attracte...

Journal: :caspian journal of chemistry 2014
moslem lakouraj zari fallah mahmood tajbakhsh vahid hasantabar

bifunctional acidic ionic liquids, having both h-imidazolium and -so3h groups as cation moieties (h-bfails) and cf3so3- as anion, were synthesized in high yields. these h-bfails showed significant hydrophilic properties, lower acidity and higher thermal stability relative to common ionic liquids, due to their unique structures. the (propyl or butyl-3-sulfonic) imidazolium trifluoromethane sulfo...

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