scholarly journals A structural investigation of ionic liquid mixtures

2016 ◽  
Vol 18 (12) ◽  
pp. 8608-8624 ◽  
Author(s):  
Richard P. Matthews ◽  
Ignacio J. Villar-Garcia ◽  
Cameron C. Weber ◽  
Jeraime Griffith ◽  
Fiona Cameron ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Structural Investigation ◽  
Experimental Approach ◽  
Liquid Mixtures

The role of hydrogen bonding, π+–π+ stacking and anion–π+ interactions on the structure of ionic liquid mixtures has been elucidated through a combined theoretical and experimental approach.

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.

The essential role of hydrogen-bonding interaction in the extractive separation of phenolic compounds by ionic liquid

AIChE Journal ◽  
2012 ◽  
Vol 59 (5) ◽  
pp. 1657-1667 ◽  
Author(s):  
Qiwei Yang ◽  
Huabin Xing ◽  
Baogen Su ◽  
Zongbi Bao ◽  
Jun Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Phenolic Compounds ◽  
Essential Role ◽  
Hydrogen Bonding Interaction ◽  
Bonding Interaction ◽  
Extractive Separation

Pronounced Hydrogen Bonding Giving Rise to Apparent Probe Hyperpolarity in Ionic Liquid Mixtures with 2,2,2-Trifluoroethanol

2012 ◽  
Vol 116 (4) ◽  
pp. 1360-1369 ◽  
Author(s):  
Shruti Trivedi ◽  
Shubha Pandey ◽  
Sheila N. Baker ◽  
Gary A. Baker ◽  
Siddharth Pandey
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Liquid Mixtures

scholarly journals Harnessing Ionic Interactions and Hydrogen Bonding for Nucleophilic Fluorination

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 721 ◽  
Author(s):  
Young-Ho Oh ◽  
Hyoju Choi ◽  
Chanho Park ◽  
Dong Wook Kim ◽  
Sungyul Lee
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Strong Dependence ◽  
Ionic Species ◽  
Ionic Interactions ◽  
Solvent Engineering ◽  
Coulombic Interactions ◽  
Diaryliodonium Salts ◽  
Nucleophilic Fluorination

We review recent works for nucleophilic fluorination of organic compounds in which the Coulombic interactions between ionic species and/or hydrogen bonding affect the outcome of the reaction. SN2 fluorination of aliphatic compounds promoted by ionic liquids is first discussed, focusing on the mechanistic features for reaction using alkali metal fluorides. The influence of the interplay of ionic liquid cation, anion, nucleophile and counter-cation is treated in detail. The role of ionic liquid as bifunctional (both electrophilic and nucleophilic) activator is envisaged. We also review the SNAr fluorination of diaryliodonium salts from the same perspective. Nucleophilic fluorination of guanidine-containing of diaryliodonium salts, which are capable of forming hydrogen bonds with the nucleophile, is exemplified as an excellent case where ionic interactions and hydrogen bonding significantly affect the efficiency of reaction. The origin of experimental observation for the strong dependence of fluorination yields on the positions of -Boc protection is understood in terms of the location of the nucleophile with respect to the reaction center, being either close to far from it. Recent advances in the synthesis of [18F]F-dopa are also cited in relation to SNAr fluorination of diaryliodonium salts. Discussions are made with a focus on tailor-making promoters and solvent engineering based on ionic interactions and hydrogen bonding.

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