Is seven the minimum number of water molecules per ion pair for assured biological activity in ionic liquid-water mixtures?

Ionic liquids (ILs) containing small amounts of water are called hydrated ILs and they show diverse physico-chemical properties that are strongly dependent on their water content. Some properties of hydrated ILs, such as biological activity and phase transition behaviour, were found to change non-li...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2015-06, Vol.17 (22), p.14454-1446
Main Authors: Ohno, Hiroyuki, Fujita, Kyoko, Kohno, Yuki
Format: Article
Language:English
Subjects:
Biocompatible Materials - chemistry
Biological
Complex Mixtures - chemistry
Computer Simulation
Hydration
Ion pairs
Ionic liquids
Ionic Liquids - chemistry
Ions - chemistry
Materials Testing
Models, Biological
Models, Chemical
Moisture content
Molecular Docking Simulation
Nonlinearity
Physical chemistry
Structure-Activity Relationship
Water - chemistry
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Summary:Ionic liquids (ILs) containing small amounts of water are called hydrated ILs and they show diverse physico-chemical properties that are strongly dependent on their water content. Some properties of hydrated ILs, such as biological activity and phase transition behaviour, were found to change non-linearly, with an inflection at a water molecule to ion pair ratio of around 7 : 1. This critical hydration number of ILs has been discussed in this paper with respect to the state of solvated water molecules. The biological activity and phase transition behaviour of IL-water mixtures, called hydrated ILs, were found to change non-linearly at a water molecule to ion pair ratio of around 7 : 1.
ISSN:1463-9076
1463-9084
DOI:10.1039/c5cp00768b