scholarly journals Chiral Triazolium Salts and Ionic Liquids: From the Molecular Design Vectors to Their Physical Properties through Specific Supramolecular Interactions

2012 ◽  
Vol 19 (3) ◽  
pp. 892-904 ◽  
Author(s):  
Raul Porcar ◽  
Nicolás Ríos-Lombardía ◽  
Eduardo Busto ◽  
Vicente Gotor-Fernández ◽  
Jose Montejo-Bernardo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Molecular Design ◽  
Supramolecular Interactions ◽  
Triazolium Salts

Molecular design principles of ionic liquids with a sulfonyl fluoride moiety

2021 ◽  
Vol 45 (5) ◽  
pp. 2443-2452 ◽  
Author(s):  
David J. Siegel ◽  
Grace I. Anderson ◽  
Noah Cyr ◽  
Daniel S. Lambrecht ◽  
Matthias Zeller ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Molecular Design ◽  
Design Principles ◽  
New Family ◽  
Sulfonyl Fluoride

New family of SO2F-functionalized ionic liquids.

Supramolecular Interactions in Aromatic Structures for Non-Optical and Optical Chemosensors of Explosive Chemicals

2021 ◽  
Vol 317 ◽  
pp. 202-207
Author(s):  
Juan Matmin ◽  
Nur Fatiha Ghazalli ◽  
Fazira Ilyana Abdul Razak ◽  
Hendrik O. Lintang ◽  
Mohamad Azani Jalani
Keyword(s):  
Hydrogen Bonding ◽  
High Performance ◽  
Molecular Design ◽  
Optical Sensing ◽  
Green Emission ◽  
Supramolecular Interactions ◽  
Side Chain ◽  
Optical Chemosensors ◽  
Random Aggregate ◽  
Metal Metal

The scientific investigation based on the molecular design of aromatic compounds for high-performance chemosensor is challenging. This is because their multiplex interactions at the molecular level should be precisely determined before the desired compounds can be successfully used as sensing materials. Herein, we report on the molecular design of chemosensors based on aromatic structures of benzene as the organic motif of benzene-1,3,5-tricarboxamides (BTA), as well as the benzene pyrazole complexes (BPz) side chain, respectively. In the case of BTA, the aromatic benzene acts as the centre to allow the formation of π–π stacking for one-dimensional materials having rod-like arrangements that are stabilized by threefold hydrogen bonding. We found that when nitrate was applied, the rod-like BTA spontaneously formed into a random aggregate due to the deformation of its hydrogen bonding to form inactive nitroso groups for non-optical sensing capability. For the optical chemosensor, the aromatic benzene is decorated as a side-chain of BPz to ensure that cage-shaped molecules make maximum use of their centre providing metal-metal interactions for fluorescence-based sensing materials. In particular, when exposed to benzene, Cu-BPz displayed a blue-shift of its original emission band from 616 to 572 nm (Δ = 44 nm) and emitted bright orange to green emission colours. We also observe a different mode of fluorescence-based sensing materials for Au-BPz, which shows a particular quenching mechanism resulting in 81% loss of its original intensity on benzene exposure to give less red-orange emission (λ = 612 nm). The BTA and BPz synthesized are promising high-performance supramolecular chemosensors based on the non-optical and optical sensing capability of a particular interest analyte.

Immobilization of molecules based ionic liquids. A promising approach to improve elecrocatalysts performance towards hydrogen evolution reaction

2021 ◽  
Author(s):  
Hoa-zheng Yu ◽  
Selma Bencherif ◽  
Thuan-Nguyen Pham-Truong ◽  
Jalal Ghilane
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Unique Chemical ◽  
Successful Integration

Ionic liquids (ILs) have received continuous attention owing to their unique chemical and physical properties and to their successful integration in several applications. More recently, the ILs moved from their...

Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids

2018 ◽  
Vol 253 ◽  
pp. 250-258 ◽  
Author(s):  
Nur Ani Kartikawati ◽  
Rizwan Safdar ◽  
Bhajan Lal ◽  
Muhammad Ibrahim Bin Abdul Mutalib ◽  
Azmi Mohd Shariff
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Physical Properties

Task-specific Ionic Liquids as a Green Catalysts and Solvents for Organic Synthesis

2020 ◽  
Vol 7 (1) ◽  
pp. 105-119 ◽  
Author(s):  
Swapnil A. Padvi ◽  
Dipak S. Dalal
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Organic Synthesis ◽  
Review Article ◽  
Present Review ◽  
Organic Transformations ◽  
The Past ◽  
Properties Characterization

Task-specific ionic liquids (TSILs) have received increased attention over the past few years as a Green Catalysts and Solvents for a large number of organic transformations. The present review article aims to provide an introduction, types of task-specific ionic liquids, preparation/synthesis, physical properties, characterization, use of TSILs as solvent and catalyst in organic synthesis.

scholarly journals Effects of substituent branching and chirality on the physical properties of ionic liquids based on cationic ruthenium sandwich complexes

2016 ◽  
Vol 18 (15) ◽  
pp. 10041-10048 ◽  
Author(s):  
Tomomi Higashi ◽  
Takahiro Ueda ◽  
Tomoyuki Mochida
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Liquid State ◽  
Sandwich Complexes

Organometallic ionic liquids with less symmetrical substituents tend to maintain the liquid state due to suppression of crystallization.

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