Reorientational dynamics of charged and neutral solutes in 1-alkyl-3-methylimidazoilum bis(trifluoromethylsulfonyl)imide ionic liquids: Realization of ionic component of hydrogen bond

2016 ◽  
Vol 652 ◽  
pp. 177-183 ◽  
Author(s):  
Prabhat Kumar Sahu ◽  
Moloy Sarkar
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Ionic Component ◽  
Reorientational Dynamics

scholarly journals Measurement of the hydrogen bond acceptance of ionic liquids and green solvents by the 19F solvatomagnetic comparison method

2021 ◽  
Author(s):  
Christian Laurence ◽  
Sergui Mansour ◽  
Daniela Vuluga ◽  
Julien Legros
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Comparison Method ◽  
Green Solvents ◽  
Reliable Measurement

A 19F solvatomagnetic comparison of 4-fluorophenol and 4-fluoroanisole yields a more reliable measurement of the hydrogen-bond acceptance of ionic liquids and green solvents than the solvatochromic comparison method.

scholarly journals Importance of reorientational dynamics for the charge transport in ionic liquids

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
P. Sippel ◽  
S. Krohns ◽  
D. Reuter ◽  
P. Lunkenheimer ◽  
A. Loidl
Keyword(s):  
Ionic Liquids ◽  
Charge Transport ◽  
Reorientational Dynamics

Effect of hydrogen bond of hydroxyl-functionalized ammonium ionic liquids on cycloaddition of CO2

2015 ◽  
Vol 56 (11) ◽  
pp. 1416-1419 ◽  
Author(s):  
Weiguo Cheng ◽  
Benneng Xiao ◽  
Jian Sun ◽  
Kun Dong ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Ammonium Ionic Liquids

scholarly journals Hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts as major descriptors in the formation of aqueous biphasic systems

2018 ◽  
Vol 20 (20) ◽  
pp. 14234-14241 ◽  
Author(s):  
Helena Passos ◽  
Teresa B. V. Dinis ◽  
Ana Filipa M. Cláudio ◽  
Mara G. Freire ◽  
João A. P. Coutinho
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Predictive Model ◽  
Aqueous Biphasic Systems ◽  
Molar Entropy ◽  
Liquid Salt ◽  
Hydrogen Bond Basicity ◽  
Aqueous Biphasic ◽  
Biphasic Systems

A predictive model for ionic liquid/salt aqueous biphasic systems’ formation based on the hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts.

scholarly journals Stability of cellulase in ionic liquids: correlations between enzyme activity and COSMO-RS descriptors

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jacob Nedergaard Pedersen ◽  
Bianca Pérez ◽  
Zheng Guo
Keyword(s):  
Hydrogen Bond ◽  
Enzyme Activity ◽  
Ionic Liquids ◽  
Bond Energy ◽  
Crucial Role ◽  
Enzymatic Saccharification ◽  
Cellulase Activity ◽  
Cellulose Dissolution ◽  
Ion Size ◽  
Selection Of

AbstractIonic liquids (ILs) are effective in pretreating cellulose for enhanced enzymatic saccharification, however ILs can inactivate cellulases. To guide the selection of ILs, the activity of cellulase was correlated with COSMO-RS calculations and descriptors of ILs including hydrogen bond (H-bond) basicity/acidity, polarity and ion size. Trends were deduced using an anion-series and a cation-series of ionic liquids in aqueous solutions. The activity in the cation-series was best correlated with the size of varied cations, whereas the activity in the anion-series showed a pronounced correlation to H-bond basicity and polarity of different anions. COSMO-RS was further used to predict the solubility of cellulose in ILs, which was correlated with cellulase activity on IL-pretreated cellulose. The best correlations were found between the enzyme activity in the anion-series ILs and the logarithmic activity coefficients, the H-bond energy, H-bond basicity and polarizability, underlining that the anion plays a crucial role in cellulose dissolution.

Insights into hydrogen bond donor promoted fixation of carbon dioxide with epoxides catalyzed by ionic liquids

2015 ◽  
Vol 17 (8) ◽  
pp. 5959-5965 ◽  
Author(s):  
Mengshuai Liu ◽  
Kunqi Gao ◽  
Lin Liang ◽  
Fangxiao Wang ◽  
Lei Shi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Bond Activation ◽  
Cycloaddition Reaction ◽  
Dft Studies ◽  
Hydrogen Bond Donor ◽  
Fixation Of Carbon Dioxide

Experimental and DFT studies demonstrated that additional EG could cooperate with ILs to facilitate the cycloaddition reactionviahydrogen bond activation.

scholarly journals Review on Carbon Dioxide Absorption by Choline Chloride/Urea Deep Eutectic Solvents

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Rima J. Isaifan ◽  
Abdukarem Amhamed
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Absorption Capacity ◽  
Carbon Dioxide Absorption ◽  
Hydrogen Bond Donor ◽  
Separation Processes ◽  
Hydrogen Bond Acceptor

In the recent past few years, deep eutectic solvents (DESs) were developed sharing similar characteristics to ionic liquids but with more advantageous features related to preparation cost, environmental impact, and efficiency for gas separation processes. Amongst many combinations of DES solvents that have been prepared, reline (choline chloride as the hydrogen bond acceptor mixed with urea as the hydrogen bond donor) was the first DES synthesized and is still the one with the lowest melting point. Choline chloride/urea DES has proven to be a promising solvent as an efficient medium for carbon dioxide capture when compared with amine alone or ionic liquids under the same conditions. This review sheds light on the preparation method, physical and chemical characteristics, and the CO2 absorption capacity of choline chloride/urea DES under different temperatures and pressures reported up to date.

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