Revisiting Ionic Liquid Structure-Property Relationship: A Critical Analysis

In the last few years, ionic liquids (ILs) have been the focus of extensive studies concerning the relationship between structure and properties and how this impacts their application. Despite a large number of studies, several topics remain controversial or not fully answered, such as: the existenc...

Full description

Saved in:
Bibliographic Details
Published in:International journal of molecular sciences 2020-10, Vol.21 (20), p.7745
Main Authors: Silva, Wagner, Zanatta, Marcileia, Ferreira, Ana Sofia, Corvo, Marta C, Cabrita, Eurico J
Format: Article
Language:English
Subjects:
Diffusion
Electric Conductivity
Ion pairs
Ionic liquids
Ionic Liquids - chemistry
Ions
Literature reviews
NMR
Nuclear magnetic resonance
Physicochemical properties
Review
Structure-Activity Relationship
Transport properties
Viscosity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the last few years, ionic liquids (ILs) have been the focus of extensive studies concerning the relationship between structure and properties and how this impacts their application. Despite a large number of studies, several topics remain controversial or not fully answered, such as: the existence of ion pairs, the concept of free volume and the effect of water and its implications in the modulation of ILs physicochemical properties. In this paper, we present a critical review of state-of-the-art literature regarding structure-property relationship of ILs, we re-examine analytical theories on the structure-property correlations and present new perspectives based on the existing data. The interrelation between transport properties (viscosity, diffusion, conductivity) of IL structure and free volume are analysed and discussed at a molecular level. In addition, we demonstrate how the analysis of microscopic features (particularly using NMR-derived data) can be used to explain and predict macroscopic properties, reaching new perspectives on the properties and application of ILs.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms21207745