Advanced

Water-Mediated Ion Pairing : Occurrence and Relevance

Van Der Vegt, Nico F A; Haldrup, Kristoffer; Roke, Sylvie; Zheng, Junrong; Lund, Mikael LU and Bakker, Huib J. (2016) In Chemical Reviews 116(13). p.7626-7641
Abstract

We present an overview of the studies of ion pairing in aqueous media of the past decade. In these studies, interactions between ions, and between ions and water, are investigated with relatively novel approaches, including dielectric relaxation spectroscopy, far-infrared (terahertz) absorption spectroscopy, femtosecond mid-infrared spectroscopy, and X-ray spectroscopy and scattering, as well as molecular dynamics simulation methods. With these methods, it is found that ion pairing is not a rare phenomenon only occurring for very particular, strongly interacting cations and anions. Instead, for many salt solutions and their interfaces, the measured and calculated structure and dynamics reveal the presence of a distinct concentration of... (More)

We present an overview of the studies of ion pairing in aqueous media of the past decade. In these studies, interactions between ions, and between ions and water, are investigated with relatively novel approaches, including dielectric relaxation spectroscopy, far-infrared (terahertz) absorption spectroscopy, femtosecond mid-infrared spectroscopy, and X-ray spectroscopy and scattering, as well as molecular dynamics simulation methods. With these methods, it is found that ion pairing is not a rare phenomenon only occurring for very particular, strongly interacting cations and anions. Instead, for many salt solutions and their interfaces, the measured and calculated structure and dynamics reveal the presence of a distinct concentration of contact ion pairs (CIPs), solvent shared ion pairs (SIPs), and solvent-separated ion pairs (2SIPs). We discuss the importance of specific ion-pairing interactions between cations like Li+ and Na+ and anionic carboxylate and phosphate groups for the structure and functioning of large (bio)molecular systems.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Reviews
volume
116
issue
13
pages
16 pages
publisher
The American Chemical Society
external identifiers
  • scopus:84977476796
  • wos:000379794000009
ISSN
0009-2665
DOI
10.1021/acs.chemrev.5b00742
language
English
LU publication?
yes
id
8f0fd210-0380-4d83-9e40-c446a47cca93
date added to LUP
2017-01-12 13:08:35
date last changed
2017-10-22 05:24:52
@article{8f0fd210-0380-4d83-9e40-c446a47cca93,
  abstract     = {<p>We present an overview of the studies of ion pairing in aqueous media of the past decade. In these studies, interactions between ions, and between ions and water, are investigated with relatively novel approaches, including dielectric relaxation spectroscopy, far-infrared (terahertz) absorption spectroscopy, femtosecond mid-infrared spectroscopy, and X-ray spectroscopy and scattering, as well as molecular dynamics simulation methods. With these methods, it is found that ion pairing is not a rare phenomenon only occurring for very particular, strongly interacting cations and anions. Instead, for many salt solutions and their interfaces, the measured and calculated structure and dynamics reveal the presence of a distinct concentration of contact ion pairs (CIPs), solvent shared ion pairs (SIPs), and solvent-separated ion pairs (2SIPs). We discuss the importance of specific ion-pairing interactions between cations like Li<sup>+</sup> and Na<sup>+</sup> and anionic carboxylate and phosphate groups for the structure and functioning of large (bio)molecular systems.</p>},
  author       = {Van Der Vegt, Nico F A and Haldrup, Kristoffer and Roke, Sylvie and Zheng, Junrong and Lund, Mikael and Bakker, Huib J.},
  issn         = {0009-2665},
  language     = {eng},
  month        = {07},
  number       = {13},
  pages        = {7626--7641},
  publisher    = {The American Chemical Society},
  series       = {Chemical Reviews},
  title        = {Water-Mediated Ion Pairing : Occurrence and Relevance},
  url          = {http://dx.doi.org/10.1021/acs.chemrev.5b00742},
  volume       = {116},
  year         = {2016},
}