Interionic Interactions in Imidazolium-Based Ionic Liquids: The Role of the C2-Position Revealed by Raman Scattering and Supported by IR and NMR Spectroscopy

2010 ◽  
Author(s):  
Kristina Noack ◽  
Natalia Paape ◽  
Johannes Kiefer ◽  
Peter Wasserscheid ◽  
Alfred Leipertz ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Nmr Spectroscopy ◽  
Raman Scattering ◽  
Ir And Nmr Spectroscopy ◽  
Interionic Interactions

Role of cationic head-group in cytotoxicity of ionic liquids: Probing changes in bilayer architecture using solid-state NMR spectroscopy

2021 ◽  
Vol 581 ◽  
pp. 954-963
Author(s):  
Navleen Kaur ◽  
Markus Fischer ◽  
Sandeep Kumar ◽  
Gagandeep Kaur Gahlay ◽  
Holger A. Scheidt ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Head Group ◽  
Solid State Nmr Spectroscopy

The role of the C2 position in interionic interactions of imidazolium based ionic liquids: a vibrational and NMR spectroscopic study

2010 ◽  
Vol 12 (42) ◽  
pp. 14153 ◽  
Author(s):  
Kristina Noack ◽  
Peter S. Schulz ◽  
Natalia Paape ◽  
Johannes Kiefer ◽  
Peter Wasserscheid ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Spectroscopic Study ◽  
Interionic Interactions

Structures of ionic liquid–water mixtures investigated by IR and NMR spectroscopy

2014 ◽  
Vol 16 (20) ◽  
pp. 9591-9601 ◽  
Author(s):  
Seoncheol Cha ◽  
Mingqi Ao ◽  
Woongmo Sung ◽  
Bongjin Moon ◽  
Bodil Ahlström ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Nmr Spectroscopy ◽  
Liquid Water ◽  
Proton Nmr ◽  
Ir Absorption ◽  
Proton Nmr Spectroscopy ◽  
Aqueous Mixtures ◽  
Ir And Nmr Spectroscopy

Imidazolium-based ionic liquids having different anions 1-butyl-3-methylimidazolium ([BMIM]X: X = Cl−, Br−, I−, and BF4−) and their aqueous mixtures were investigated by IR absorption and proton NMR spectroscopy.

Synthesis and Caracterization of some New 1H-3-aryl-7-etoxycarbonyl-6-methyl-pyrazolo[5,1-c][1,2,4]triazoles

2008 ◽  
Vol 59 (1) ◽  
pp. 41-44
Author(s):  
Maria-Daniela Sofei ◽  
Maria Ilici ◽  
Valentin Badea ◽  
Carol Csunderlik ◽  
Vasile-Nicolae Bercean
Keyword(s):  
Mass Spectrometry ◽  
Acetic Acid ◽  
Nmr Spectroscopy ◽  
Sodium Acetate ◽  
Glacial Acetic Acid ◽  
Ir And Nmr Spectroscopy

The synthesis of 1H-3-aryl-7-ethoxycarbonyl-6-methyl-pyrazolo[5,1-c][1,2,4]triazoles (2) was carried out by cyclization of 1H-5-arylidenehydrazino-4-ethoxycarbonyl-3-methyl-pyrazoles (1) in the presence of bromine using glacial acetic acid as solvent and sodium acetate as base. The new nine obtained compounds were characterized by IR and NMR spectroscopy and mass spectrometry.

scholarly journals Structure and dynamics of room temperature ionic liquids with bromide anion: results from 81 Br NMR spectroscopy

2015 ◽  
Vol 53 (5) ◽  
pp. 369-378 ◽  
Author(s):  
Takatsugu Endo ◽  
Mamoru Imanari ◽  
Yuki Hidaka ◽  
Hiroko Seki ◽  
Keiko Nishikawa ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Nmr Spectroscopy ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Bromide Anion ◽  
Structure And Dynamics

scholarly journals Current trends in leather science

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Anthony D. Covington ◽  
William R. Wise
Keyword(s):  
Ionic Liquids ◽  
Potential Role ◽  
Solid Medium ◽  
Leather Industry ◽  
Chromium Vi ◽  
Current Trends ◽  
New Findings ◽  
Vegetable Tanning ◽  
Sulfide Species

Abstract In preparing the second edition of ‘Tanning Chemistry. The Science of Leather.’, the literature was updated and the content was revised and reviewed. Here, the new findings are presented and discussed. Notable developments include the necessary rethinking of the mechanism of sulfide unhairing because of new understanding of the aqueous chemistry of sulfide species. Revision upwards of the value of the second pKa for sulfide species ionisation means that S2− cannot exist in an aqueous medium, so the unhairing species in hair burn reactions is HS−. Although the technology remains the same, this means the mechanisms of associated reactions such as immunisation must be revised. Rawstock preservation has benefitted from studies of the potential role of materials from plants which accumulate salt, but which also contribute terpene compounds. There is also further discussion on the continuing issue of chromium (VI) in the leather industry. The application to processing of new solvents, ionic liquids and deep eutectics, is the coming technology, which offers transforming options for new chemistries and products. Renewed interest in vegetable tanning and methods of wet white processing are current trends. Also, within the topic of reagent delivery is processing in a solid medium of plastic beads. Graphical abstract

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