ChemInform Abstract: Recent Progress on Nazarov Cyclizations: The Use of Iron Salts as Catalysts in Ionic Liquid Solvent Systems

ChemInform ◽  
2016 ◽  
Vol 47 (33) ◽  
Author(s):  
Toshiyuki Itoh ◽  
Toshiki Nokami ◽  
Motoi Kawatsura
Keyword(s):  
Ionic Liquid ◽  
Recent Progress ◽  
Iron Salts ◽  
Solvent Systems ◽  
Nazarov Cyclizations

scholarly journals Interaction Study of Binary Solvent Systems Ionic Liquid and Deep Eutectic Solvent with Rotenone

2018 ◽  
Vol 47 (07) ◽  
pp. 1473-1482 ◽  
Author(s):  
Zetty Shafiqa Othman ◽  
Mamoru Koketsu ◽  
Nurul Huda Abd Karim ◽  
Saiful Irwan Zubairi ◽  
Nur Hasyareeda Hassan
Keyword(s):  
Ionic Liquid ◽  
Deep Eutectic Solvent ◽  
Binary Solvent ◽  
Interaction Study ◽  
Binary Solvent Systems ◽  
Solvent Systems

Diglycolamide-Based Solvent Systems in Room Temperature Ionic Liquids for Actinide Ion Extraction: A Review

2015 ◽  
Vol 10 (2) ◽  
pp. 135-145 ◽  
Author(s):  
Prasanta Kumar Mohapatra
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Metal Ion ◽  
Room Temperature ◽  
Review Article ◽  
Metal Ion Extraction ◽  
Ion Extraction ◽  
Radiolytic Stability ◽  
Solvent Systems ◽  
Functionalized Ligands

Abstract This review article gives a comprehensive account of the extraction of actinide ions using room temperature ionic liquid-based solvent systems containing diglycolamide (DGA) or functionalized DGA extractants. These extractants include multiple DGA-functionalized ligands such as tripodal DGA (T-DGA) and DGA-functionalized calix [4]arenes (C4DGA). Apart from metal ion extraction behaviour, other important features of the ionic liquid-based solvent systems such as separation behaviour, luminescence spectroscopic results, thermodynamics of extraction and radiolytic stability of the ionic liquid-based solvents are also reviewed. Results from studies on DGA-functionalized task-specific ionic liquids (TSIL) are also included in this review article.

Molecular Dynamics Study of Candida rugosa Lipase in Water, Methanol, and Pyridinium Based Ionic Liquids

2021 ◽  
Vol 874 ◽  
pp. 88-95
Author(s):  
Oktavianus Hendra Cipta ◽  
Anita Alni ◽  
Rukman Hertadi
Keyword(s):  
Molecular Dynamics ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Candida Rugosa ◽  
Solvent System ◽  
Dynamics Simulation ◽  
Initial Structure ◽  
Enzymatic Reactions ◽  
Solvent Systems ◽  
To Come

The structure of Candida rugosa lipase can be affected by solvents used in the enzymatic reactions. Using molecular dynamics simulation as a tool to study the Candida rugosa lipase structure, we studied the effect of various solvent systems, such as water, water-methanol, and water-methanol-ionic liquid. These solvent systems have been chosen because lipase is able to function in both aqueous and non-aqueous medium. In this study, pyridinium (Py)-based ionic liquids were selected as co-solvent. The MD simulation was run for 50 nanoseconds for each solvent system at 328 K. In the case of water-methanol-ionic liquids solvent systems, the total number of the ionic liquids added were varied: 222, 444, and 888 molecules. Water was used as the reference solvent system. The structure of Candida rugosa lipase in water-methanol system significantly changed from the initial structure as indicated by the RMSD value, which was about 6.4 Å after 50 ns simulation. This value was relatively higher compared to the other water-methanol solvent system containing ionic liquid as co-solvent, which were 2.43 Å for 4Py-Br, 2.1 Å for 8Py-Br, 3.37 Å for 4Py-BF4 and 3.49 Å for 8Py-BF4 respectively. Further analysis by calculating the root mean square fluctuation (RMSF) of each lipase residue found that the presence of ionic liquids could reduce changes in the enzyme structure. This happened because the anion component of the ionic liquid interacts relatively more strongly with residues on the surface of the protein as compared to methanol, thereby lowering the possibility of methanol to come into contact with the protein.

High throughput approach to investigating ternary solvents of aqueous non-stoichiometric protic ionic liquids

2019 ◽  
Vol 21 (13) ◽  
pp. 6810-6827 ◽  
Author(s):  
Dilek Yalcin ◽  
Calum J. Drummond ◽  
Tamar L. Greaves
Keyword(s):  
Surface Tension ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
High Throughput ◽  
Self Assembly ◽  
Protic Ionic Liquids ◽  
Systematic Data ◽  
Solvent Systems ◽  
Compositional Space

High throughput methods were used to investigate ionic liquid containing solutions to provide systematic data of a broad compositional space. We have principally focused on the surface tension, apparent pH and liquid nanostructure to identify potential self-assembly and protein stabilizing ability of solvent systems.

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