A closer look into deep eutectic solvents: exploring intermolecular interactions using solvatochromic probes

2018 ◽  
Vol 20 (1) ◽  
pp. 206-213 ◽  
Author(s):  
C. Florindo ◽  
A. J. S. McIntosh ◽  
T. Welton ◽  
L. C. Branco ◽  
I. M. Marrucho
Keyword(s):  
Hydrogen Bond ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Deep Eutectic Solvents ◽  
Solvatochromic Parameters ◽  
Wide Range ◽  
Solvatochromic Probes ◽  
Hydrogen Bond Basicity ◽  
Hydrogen Bond Acidity

Kamlet Taft solvatochromic parameters, namely the hydrogen-bond acidity, hydrogen-bond basicity and dipolarity/polarizability and ETN parameters of a wide range of DESs composed of cholinium chloride, dl-menthol and a quaternary ammonium salt ([N4444]Cl), and corresponding ILs are here presented.

Investigation of a deep eutectic solvent formed by levulinic acid with quaternary ammonium salt as an efficient SO2 absorbent

2015 ◽  
Vol 39 (10) ◽  
pp. 8158-8164 ◽  
Author(s):  
Dongshun Deng ◽  
Guoqiang Han ◽  
Yaotai Jiang
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Levulinic Acid ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Separation Performance

Six new deep eutectic solvents with good absorption and separation performance for SO2 were developed.

N-(2-Iodophenylmethyl)hexamethylenetetraminium bromide dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. o4279-o4279 ◽  
Author(s):  
Richard Betz ◽  
Peter Klüfers
Keyword(s):  
Hydrogen Bond ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Title Compound ◽  
Quaternary Ammonium Salt ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Bromide Anion ◽  
Compound C ◽  
Methylene Groups

The title compound, C13H18IN4 +·Br−·2H2O, is a quaternary ammonium salt derived from 2-iodobenzyl bromide and hexamethylenetetramine. Two water molecules per asymmetric unit act as hydrogen-bond donors to the bromide anion. Direct cation–anion contacts are established via C—H donors, mainly from methylene groups in the α position to the ammonium centre.

(R,E)-[4-(Benzyloxy)-2-(cinnamoyloxy)-4-oxobutyl]trimethylammonium chloride hydrochloride

2007 ◽  
Vol 63 (11) ◽  
pp. o4239-o4240
Author(s):  
Xun Li ◽  
Xiao-Wei Gong ◽  
Jin-Pei Li ◽  
Wei-Xia Wang ◽  
Wen-Fang Xu
Keyword(s):  
Hydrogen Bond ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Title Compound ◽  
Quaternary Ammonium Salt ◽  
Trimethylammonium Chloride ◽  
Π Interactions ◽  
Compound C ◽  
Cl Atoms

The title compound, C23H28NO4 +·Cl−·HCl, is a quaternary ammonium salt with a scaffold similar to that of acetyl-L-carnitine hydrochloride. The two Cl atoms in the structure are tightly bonded by a strong Cl—H...Cl hydrogen bond with a Cl...Cl separation of 3.068 (2) Å. The cations are held together partly by a range of C—H...O and C—H...π interactions.

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt

2013 ◽  
Vol 50 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Yong-Qiang Sun ◽  
Wen-Jing Li ◽  
Wan-Xu Wang ◽  
Qiu-Xiao Li ◽  
Wieslaw Hreczuch ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
And Performance

Instability of Solutions of Quaternary Ammonium Permanganates in Dichloromethane

1997 ◽  
Vol 62 (6) ◽  
pp. 849-854 ◽  
Author(s):  
Vladislav Holba ◽  
Renata Košická
Keyword(s):  
Ammonium Salt ◽  
Rate Constants ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Activation Parameters ◽  
The Stability

The paper deals with instability of solutions of quaternary ammonium permanganates, QMnO4 (Q = tetraethyl-, tetra-1-propyl-, tetra-1-butyl-, tetra-1-pentyl-, tetra-1-octyl-, and cetyltrimethylammonium), in dichloromethane and presents the rate constants and activation parameters of the reduction of permanganate. Attention was paid to the properties of colloidal Mn(IV) intermediate. The stability of the solutions depends markedly on the quaternary ammonium salt used.

Systematic exploration of quaternary ammonium salt adsorption on oxidized coal based on experiments and MD simulations

Fuel ◽  
2021 ◽  
Vol 287 ◽  
pp. 119434
Author(s):  
Jun Chen ◽  
Hongliang Li ◽  
Chunfu Liu ◽  
Lingyun Liu ◽  
Yu Sun ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Md Simulations ◽  
Oxidized Coal ◽  
Systematic Exploration

scholarly journals Antibacterial performance of polymer quaternary ammonium salt–capped silver nanoparticles on Bacillus subtilis in water

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25667-25676 ◽  
Author(s):  
Jingyu Wang ◽  
Minghao Sui ◽  
Zhanfang Ma ◽  
Hongwei Li ◽  
Bojie Yuan
Keyword(s):  
Silver Nanoparticles ◽  
Bacillus Subtilis ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Antibacterial Performance ◽  
Antibacterial Capacity

Polymer quaternary ammonium salt–capped silver nanoparticles (PQAS–AgNPs) were synthesized, and they exhibited significant antibacterial capacity against Bacillus subtilis.

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