scholarly journals Dimensional Control in Polyoxometalate Crystals Hybridized with Amphiphilic Polymerizable Ionic Liquids

Materials ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2283 ◽  
Author(s):  
Toshiyuki Misawa ◽  
Jun Kobayashi ◽  
Yoshiki Kiyota ◽  
Masayuki Watanabe ◽  
Seiji Ono ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Hybrid Materials ◽  
Functional Materials ◽  
Characteristic Functions ◽  
Imidazolium Ionic Liquid ◽  
Precise Control ◽  
Organic Hybrid ◽  
Molecular Arrangement ◽  
Hybrid Crystals

Ionic liquids are an important component for constructing functional materials, and polyxometalate cluster anion is a promising partner for building inorganic–organic hybrid materials comprising ionic liquids. In such hybrid materials, the precise control of the molecular arrangement in the bulk structures is crucial for the emergence of characteristic functions, which can be realized by introducing an amphiphilic moiety into the ionic liquids. Here, an amphiphilic polymerizable imidazolium ionic liquid with a methacryloyl group was firstly hybridized with polyoxometalate anions of octamolybdate ([Mo8O26]4−, Mo8) and silicotungstate ([SiW12O40]4−, SiW12) to obtain inorganic–organic hybrid crystals. The polymerizable ionic liquid with a octyl chain (denoted as MAImC8) resulted in the formation of anisotropic molecular arrangements in the bulk crystal structure, which was compared with the hybrid crystals composed from the polymerizable ionic liquid without a long alkyl chain (denoted as MAIm). Rather densely packed isotropic molecular arrangements were observed in the hybrid crystals of MAIm–Mo8 and MAIm–SiW12 due to the lack of the amphiphilic moiety. On the other hand, using the amphiphilic MAImC8 cation gave rise to a honeycomb-like structure with the Mo8 anion and a layered structure with the SiW12 anion, respectively.

Synthesis and application of Co(salen) complexes containing proximal imidazolium ionic liquid cores

2012 ◽  
Vol 90 (1) ◽  
pp. 60-70 ◽  
Author(s):  
Swapnil Sonar ◽  
Kenson Ambrose ◽  
Arthur D. Hendsbee ◽  
Jason D. Masuda ◽  
Robert D. Singer
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Model Compound ◽  
Veratryl Alcohol ◽  
Oxidation Catalysts ◽  
Imidazolium Ionic Liquid ◽  
Lignin Model Compound ◽  
Salen Complexes ◽  
Lignin Model ◽  
Salen Ligand

Ionic ligands derived from a salen ligand containing two proximal 1,3-disubstituted imidazolium ionic liquid cores form cobalt(III) complexes capable of selectively oxidizing veratryl alcohol, a lignin model compound, to veratraldehyde using air as the source of oxygen. These complexes are easy to prepare, inexpensive, water stable, and soluble in ionic liquids, making them viable candidates for use as oxidation catalysts.

scholarly journals Ionic liquid promoted Diels-Alder Reaction between anthrone and maleimides

2010 ◽  
Vol 8 (2) ◽  
pp. 356-360 ◽  
Author(s):  
Nitin Mirgane ◽  
Sandip Kotwal ◽  
Anil Karnik
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Alder Reaction ◽  
Dual Role ◽  
Diels Alder ◽  
Environmentally Benign ◽  
Green Solvents ◽  
Imidazolium Ionic Liquid ◽  
Diels Alder Reaction

AbstractIonic liquids (IL) are gaining importance as green solvents. Imidazolium ionic liquid [bmim]+[Cl]−, an environmentally benign solvent, was found to promote the Diels-Alder reaction between anthrone and maleimides at room temperature with excellent yields. The ionic liquid played a dual role as solvent and catalyst.

scholarly journals Comparison of Pure and Hybrid Nanoparticles using Ionic Liquid as a Capping agent

2020 ◽  
Vol 13 (4) ◽  
pp. 413-419
Author(s):  
N. Santhi ◽  
K. Rajathi ◽  
S. Sridhar
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Electron Microscope ◽  
Hybrid Nanoparticles ◽  
Spectral Studies ◽  
Imidazolium Ionic Liquid ◽  
High Biological Activity ◽  
X Ray ◽  
Cubic Form ◽  
Co Precipitation

Ionic liquids are exceptional chemical compounds that are used in many areas of modern science. Due to their highly adjustable nature and incomparable properties, ionic liquids have become key players in the areas of synthesis, catalysis, extraction, electrochemistry, analysis, biotechnology, etc. In addition to the physical and chemical properties of ionic liquids, their high biological activity has attracted considerable attention from biochemists, ecologists and medical professionals. Due to the properties mentioned above, an imidazolium ionic liquid solvent was used for the synthesis of nanostructure nanoparticles. In the present work, cubic form of pure Fe2O3, spherical nature of pure Ag (0) and hexagonal shaped hybrid Ag- Fe2O3 were successfully synthesized by a simple co-precipitation, reduction and co-precipitation processes. The synthesized nanoparticles were characterized in detail by spectral studies such as IR, XRD, SEM, EDX and TEM analysis. The size and shape of the particles were performed by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) techniques and Transmission Electron Microscope (TEM) techniques. Quality quantity and purity of the products was checked by Energy Dispersive X-Ray Analysis (EDX).

Synthesis and Characterization of Supported on Silica Based Ionic Liquids

2015 ◽  
Vol 727-728 ◽  
pp. 34-37
Author(s):  
Li Ying Guo ◽  
Jun Shi ◽  
Jun Hai He ◽  
Ji Yue Huang ◽  
Peng Cheng Huang
Keyword(s):  
Crystal Structure ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Structure ◽  
Sol Gel ◽  
Synthesis And Characterization ◽  
Imidazolium Ionic Liquid ◽  
Imidazolium Ionic Liquids ◽  
Methyl Imidazole

Three kinds of functionalized imidazolium ionic liquid, 1-chloride (2-hydroxyethyl) -3-methyl imidazole ionic liquid [HeMIM]Cl, 1-bromide ethylamine-3-methyl imidazolium ionic liquid [AeMIM]Br and chlorinated 1-carboxyethyl-3-methyl imidazolium ionic liquid [CeMIM]Cl, were synthesized firstly. Subsequently, three kinds of supported silicon imidazolium ionic liquids were prepared from above ionic liquids with tetraethoxysilane by sol-gel method. The Chemical structure and crystal structure of the supported on silica based ionic liquids were analyzed by FTIR and XRD.

Preliminary Assessment of the Sorption of some Alkyl Imidazolium Cations as used in Ionic Liquids to Soils and Sediments

2005 ◽  
Vol 58 (3) ◽  
pp. 170 ◽  
Author(s):  
Piotr Stepnowski
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Environmental Fate ◽  
Hydrophobic Interactions ◽  
Preliminary Assessment ◽  
Imidazolium Ionic Liquid ◽  
Imidazolium Cations ◽  
Soils And Sediments ◽  
Essential Parameter ◽  
Selection Of

The growing interest in the use of ionic liquids may soon result in their presence in the environment. In any evaluation of the environmental fate of these compounds, their sorption on soil is an essential parameter. This paper reports data on the sorption of ionic liquids on selected soils and marine sediments. Batch-equilibrium adsorption tests were conducted on a selection of imidazolium ionic liquid entities. All the compounds were strongly sorbed on all the soils under study. It seems that, regardless of the hydrophobic interaction with organic matter, non-hydrophobic interactions contribute to the sorption of these compounds to soils and sediments, which usually tends to occur with highly polar ionized groups such as quaternary moieties.

Antibiofilm activity of tert-BuOH functionalized ionic liquids with methylsulfonate counteranions

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 68136-68142 ◽  
Author(s):  
Govinda R. Navale ◽  
Mahesh S. Dharne ◽  
Sandip S. Shinde
Keyword(s):  
Antimicrobial Activity ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Biofilm Formation ◽  
Alkyl Chain ◽  
Antibiofilm Activity ◽  
Imidazolium Ionic Liquid ◽  
Potential Antimicrobial Activity

Thetert-BuOH functionalized and dodecyl alkyl chain bearing imidazolium ionic liquid [C12-tOHim][OMs] significantly prevented biofilm formation ofS. epidermidisand showed potential antimicrobial activity.

Synthesis of Ionic Liquid and its Application in Duabanga Grandiflora Wood Powder as Green Solvent

2010 ◽  
Vol 113-116 ◽  
pp. 407-411 ◽  
Author(s):  
Cheng Chen ◽  
Jian Li
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Dissolution Mechanism ◽  
Wood Powder ◽  
Imidazolium Ionic Liquid ◽  
Imidazolium Chloride ◽  
Chemical Structures ◽  
Before And After ◽  
Naoh Solution ◽  
Ft Ir

In this paper, a kind of imidazolium ionic liquid, 1-butyl-3-methyl imidazolium chloride ( [BMIM]Cl) was synthesized, and the chemical structures of the ionic liquids were characterizaed by FT-IR and NMR. The solubilities of the ionic liquid for duabanga grandiflora powder activated with different modified conditions were studied respectively. Dissolution rate of wood pretreated with about 25% NaOH solution was the best , due to the reduction of the hydrogen bond applied force. The chemical structure and crystal behavior of duabanga grandiflorar powder before and after dissolution were analyzed by FT-IR and XRD, respectively. The dissolution mechanism has also been discussed. The results showed that the ionic liquids had a good solubility for cellulose in activated duabanga grandiflorar powder. Micrographs of the original wood powder，regenerated wood powder and the residua were quite different from each others. The regenerated wood appeared some micro voids special construction.

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