Advanced

No signature of contact ion pairs in the K 2p Auger spectra of highly concentrated potassium halide solutions

Pokapanich, Wandared; Ottosson, Niklas; Soderstrom, Johan; Bjorneholm, E. and Öhrwall, Gunnar LU (2014) In ScienceAsia 40(4). p.290-294
Abstract
Possible ion pair formation in highly concentrated aqueous potassium halide solutions (fluoride, chloride, and bromide) has been investigated using Auger electron spectroscopy. The potassium Auger spectra exhibit features at high kinetic energy which are related to final states with vacancies on the potassium ion and a neighbouring water molecule. The potassium ion could possibly associate with a halide ion as well, giving rise to additional final states with a vacancy on the halide instead of a water molecule which should give rise to separable spectral features. The necessity of close proximity of the ions for such decays to occur would be strong evidence that contact ions pairs are present in the solution, but no features related to... (More)
Possible ion pair formation in highly concentrated aqueous potassium halide solutions (fluoride, chloride, and bromide) has been investigated using Auger electron spectroscopy. The potassium Auger spectra exhibit features at high kinetic energy which are related to final states with vacancies on the potassium ion and a neighbouring water molecule. The potassium ion could possibly associate with a halide ion as well, giving rise to additional final states with a vacancy on the halide instead of a water molecule which should give rise to separable spectral features. The necessity of close proximity of the ions for such decays to occur would be strong evidence that contact ions pairs are present in the solution, but no features related to final states involving the anion were observed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
aqueous solution, liquid micro-jet, double ionization potential, localized state
in
ScienceAsia
volume
40
issue
4
pages
290 - 294
publisher
Thailands Natl Science & Technology Development Agency
external identifiers
  • wos:000344436800005
  • scopus:84907920781
ISSN
1513-1874
DOI
10.2306/scienceasia1513-1874.2014.40.290
language
English
LU publication?
yes
id
f22fc19b-d481-48f1-a6b5-0c44c89b228d (old id 4875907)
date added to LUP
2014-12-23 11:02:55
date last changed
2017-01-01 06:19:55
@article{f22fc19b-d481-48f1-a6b5-0c44c89b228d,
  abstract     = {Possible ion pair formation in highly concentrated aqueous potassium halide solutions (fluoride, chloride, and bromide) has been investigated using Auger electron spectroscopy. The potassium Auger spectra exhibit features at high kinetic energy which are related to final states with vacancies on the potassium ion and a neighbouring water molecule. The potassium ion could possibly associate with a halide ion as well, giving rise to additional final states with a vacancy on the halide instead of a water molecule which should give rise to separable spectral features. The necessity of close proximity of the ions for such decays to occur would be strong evidence that contact ions pairs are present in the solution, but no features related to final states involving the anion were observed.},
  author       = {Pokapanich, Wandared and Ottosson, Niklas and Soderstrom, Johan and Bjorneholm, E. and Öhrwall, Gunnar},
  issn         = {1513-1874},
  keyword      = {aqueous solution,liquid micro-jet,double ionization potential,localized state},
  language     = {eng},
  number       = {4},
  pages        = {290--294},
  publisher    = {Thailands Natl Science & Technology Development Agency},
  series       = {ScienceAsia},
  title        = {No signature of contact ion pairs in the K 2p Auger spectra of highly concentrated potassium halide solutions},
  url          = {http://dx.doi.org/10.2306/scienceasia1513-1874.2014.40.290},
  volume       = {40},
  year         = {2014},
}