The potential role of hydrogen bonding in aprotic and protic ionic liquids

2009 ◽  
Vol 11 (39) ◽  
pp. 8790 ◽  
Author(s):  
Koichi Fumino ◽  
Alexander Wulf ◽  
Ralf Ludwig
Keyword(s):  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Potential Role ◽  
Protic Ionic Liquids

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

scholarly journals Protic Ionic Liquids as Reagent, Catalyst, and Solvent: Triple Role of 1‐Methylimidazolium Thiocyanate

2021 ◽  
Author(s):  
Daniel B. Werz ◽  
Ivan A. Andreev ◽  
Nina K. Ratmanova ◽  
André U. Augustin ◽  
Olga A. Ivanova ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Protic Ionic Liquids

Unique Structures and Vibrational Spectra of Protic Ionic Liquids Confined in TiO2 Slits: The Role of Interfacial Hydrogen Bonds

Langmuir ◽  
2018 ◽  
Vol 34 (44) ◽  
pp. 13449-13458 ◽  
Author(s):  
Zhongyang Dai ◽  
Lili Shi ◽  
Linghong Lu ◽  
Yunhao Sun ◽  
Xiaohua Lu
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Vibrational Spectra ◽  
Protic Ionic Liquids

scholarly journals The infrared spectra of protic ionic liquids: performances of different computational models to predict hydrogen bonds and conformer evolution

2020 ◽  
Vol 22 (14) ◽  
pp. 7497-7506 ◽  
Author(s):  
O. Palumbo ◽  
A. Cimini ◽  
F. Trequattrini ◽  
J.-B. Brubach ◽  
P. Roy ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Dft Calculations ◽  
Infrared Spectra ◽  
Computational Models ◽  
Far Infrared ◽  
Protic Ionic Liquids ◽  
Far Infrared Spectra

DFT calculations with the ωB97-D functional reproduce hydrogen bonding features of the far-infrared spectra of diethylmethylammonium methanesulfonate and diethylmethylammonium trifluoromethanesulfonate.

Role of Cation in Enhancing the Conversion of the Alzheimer’s Peptide into Amyloid Fibrils Using Protic Ionic Liquids

2012 ◽  
Vol 65 (11) ◽  
pp. 1502 ◽  
Author(s):  
Natalie Debeljuh ◽  
Swapna Varghese ◽  
Colin J. Barrow ◽  
Nolene Byrne
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Primary Amine ◽  
Amyloid Fibrils ◽  
Tertiary Amines ◽  
Protic Ionic Liquids ◽  
Protic Ionic Liquid ◽  
The Difference ◽  
The Impact

We report on the impact of changes in the protic ionic liquid (pIL) cation on the fibrilisation kinetics and the conversion of the Aβ 16–22 from monomers to amyloid fibrils. When we compare the use of primary, secondary, and tertiary amines we find that the primary amine results in the greatest conversion into amyloid fibrils. We show that the pIL is directly interacting with the peptide and this likely drives the difference in conversion and kinetics observed.

The role of hydrogen bonding propensity in tuning the morphology of crystals obtained from imidazolium based ionic liquids

2017 ◽  
Vol 463 ◽  
pp. 168-175 ◽  
Author(s):  
S. Karthika ◽  
T.K. Radhakrishnan ◽  
P. Kalaichelvi
Keyword(s):  
Hydrogen Bonding ◽  
Ionic Liquids

Understanding the role of hydrogen bonding in Brønsted acidic ionic liquid-catalyzed transesterification: a combined theoretical and experimental investigation

2016 ◽  
Vol 18 (48) ◽  
pp. 32723-32734 ◽  
Author(s):  
Kaixin Li ◽  
Yibo Yan ◽  
Jun Zhao ◽  
Junxi Lei ◽  
Xinli Jia ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Hydrogen Bonding Networks

The intra- and inter-hydrogen bonding networks that govern the catalytic activity of Brønsted acidic ionic liquids were identified.

Biological control of S-nitrosothiol reactivity: potential role of sigma-hole interactions

2020 ◽  
Vol 22 (12) ◽  
pp. 6595-6605
Author(s):  
Niloufar Hendinejad ◽  
Qadir K. Timerghazin
Keyword(s):  
Nitric Oxide ◽  
Biological Control ◽  
Hydrogen Bonding ◽  
Lewis Acids ◽  
Potential Role ◽  
Lewis Bases ◽  
Sigma Hole ◽  
Derivatives Of

S-Nitrosothiols, ubiquitous biological derivatives of nitric oxide, can engage in σ-hole/bonding with Lewis bases, which, in combination with hydrogen bonding with Lewis acids, could be the basis of enzymatic control of S-nitrosothiol reactions.

The Formation and Role of Oxide Layers on Pt during Hydrazine Oxidation in Protic Ionic Liquids

2013 ◽  
Vol 1 (1) ◽  
pp. 281-288 ◽  
Author(s):  
Darren A. Walsh ◽  
Andinet Ejigu ◽  
Sayyar Muhammad ◽  
Peter Licence
Keyword(s):  
Ionic Liquids ◽  
Protic Ionic Liquids ◽  
Oxide Layers ◽  
Hydrazine Oxidation
Sign in / Sign up

Export Citation Format

Share Document