نتایج جستجو برای: 1 pentyl 3 methylimidazolium bromide

تعداد نتایج: 3601008  

Journal: :Chemistry 2011
Karsten Voss Martin Becker Alexander Villinger Vladimir N Emel'yanenko Robert Hellmann Barbara Kirchner Frank Uhlig Sergey P Verevkin Axel Schulz

Room-temperature ionic liquids containing the triply charged tricyanomelaminate (tcmel) ion [C(3)N(6)(CN)(3)](3-) were synthesized. The 1-methyl-3-methylimidazolium (MMIm), 1-ethyl-3-methylimidazolium (EMIm), and 1-butyl-3-methylimidazolium (BMIm) salts of the tricyanomelaminate ion have glass transition temperatures (-6, -20, and -30 °C) similar to those found for the analogous monomeric dicya...

2009
Zhong-Hua Yang Rong Zeng Yu Wang Xian-Ke Li Zao-Sheng Lv Bin Lai Jian-Guo Liao

Ionic liquids (ILs) are considered as another ’green solvent’, after the supercritical carbon dioxide. They are a promising reaction medium for biocatalysis process. The tolerance of active cells in hydrophobic imidazolium-based ILs (1-R-3-methylimidazolium hexafluorophosphate, [RMim][PF6]) has been studied in this work. Calcium-alginate-entrapped baker’s yeast has been chosen as the model of l...

Journal: :Physical chemistry chemical physics : PCCP 2011
Tae Young Kim Ji Hye Yeon So Ra Kim Chul Young Kim Jong Pil Shim Kwang S Suh

This work presents an approach toward the shape-controlled synthesis of Ag crystals with hierarchical structures by exploitation of ionic liquids (ILs) as a shape-regulating agent. The synthesis of Ag crystals involves the reduction of AgNO(3) by EG in the presence of ILs, specifically 1-butyl-3-methylimidazolium methylsulfate (bmim-MeSO(4)). In accordance with non-classical crystallization gro...

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2010
Meysam vaezzadeh Farzaneh Shemirani Behrooz Majidi

Modified cold-induced aggregation microextraction (M-CIAME) is a fast and simple method for extraction and preconcentration of metal ions from samples with high salt content. Furthermore, this technique is much safer in comparison with the organic solvent extraction. The extraction of palladium (Pd) was performed in the presence of Michler thioketone (TMK) as the complexing agent. In this metho...

Journal: :Soft matter 2016
Cristian M O Lépori N Mariano Correa Juana J Silber R Darío Falcone

The behavior of the interfacial water entrapped in reverse micelles (RMs) formed by the ionic liquid-like surfactant 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate (bmim-AOT) dissolved in benzene (or chlorobenzene) was investigated using noninvasive techniques such as dynamic light scattering (DLS), static light scattering (SLS), FT-IR and (1)H NMR. The DLS and SLS results revea...

Journal: :Molecules 2014
Zaizhi Liu Jia Jia Fengli Chen Fengjian Yang Yuangang Zu Lei Yang

An ionic liquid-based microwave-assisted extraction method (ILMAE) was successfully applied for the extraction of taxifolin from Larix gmelinii. Different kinds of 1-alkyl-3-methylimidazolium ionic liquids with different kinds of cations and anions were studied and 1-butyl-3-methylimidazolium bromide was chosen as the optimal solvent for taxifolin extraction. The optimal conditions of ILMAE wer...

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

Journal: :Dalton transactions 2016
Philipp Zürner Horst Schmidt Sebastian Bette Jörg Wagler Gero Frisch

The ionic liquid (C4mim)2CuCl3 was synthesised from a mixture of copper(i) chloride and 1-butyl-3-methylimidazolium chloride (C4mimCl) and investigated using crystallographic and thermoanalytical methods. In the crystalline state, the compound consists of C4mim(+) cations and triangular [CuCl3](2-) anions and forms three different modifications, which are connected through phase transitions at ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Daniel Braun Othmar Steinhauser

The intermolecular NOE in NMR spectroscopy is analyzed theoretically via computer simulation. Our test case is the homonuclear NOE between hydrogens in the ionic liquid 1-ethyl-3-methylimidazolium trifluoromethanesulfonate. A coarse-grained model of this system is developed and simulated in a 3 microseconds molecular dynamics run, subsequently used for analysis. Our findings are the following: ...

Journal: :Chemical communications 2012
Marcel Besnard M Isabel Cabaço Fabián Vaca Chávez Noël Pinaud Pedro J Sebastião João A P Coutinho Yann Danten

The formation of 1-butyl-3-methylimidazolium-2-carboxylate in the mixture of CO(2) with 1-butyl-3-methylimidazolium acetate under mild conditions (298 K, 0.1 MPa) has been put in evidence in the liquid phase using Raman and infrared spectroscopy complemented by DFT calculations and NMR ((1)H, (13)C, (15)N) spectroscopy.

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