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Charge Dependence of Solvent-Mediated Intermolecular Coster-Kronig Decay Dynamics of Aqueous Ions.

Öhrwall, Gunnar LU ; Ottosson, N; Pokapanich, W; Legendre, S; Svensson, S and Björneholm, O (2010) In The Journal of Physical Chemistry Part B 114(51). p.17057-17061
Abstract
The 2s and 2p photoelectron spectra have been measured for Na(+), Mg(2+), and Al(3+) ions in aqueous solution. In all cases, the 2s lines are significantly broader than the 2p features, which is attributed to a shorter lifetime of the respective 2s hole. Since intraionic Coster-Kronig decay channels from the (2s)(-1) state are closed for free Na(+), Mg(2+), and Al(3+) ions, this is evidence for an intermolecular Coster-Kronig-like process, reminiscent of intermolecular Coulombic decay (ICD), involving neighboring water solvent molecules. The observed 2s Lorentzian line widths correspond to lifetimes of the (2s)(-1) state of 3.1, 1.5, and 0.98 fs for the solvated Na, Mg, and Al ions, respectively.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Journal of Physical Chemistry Part B
volume
114
issue
51
pages
17057 - 17061
publisher
The American Chemical Society
external identifiers
  • wos:000285560100006
  • pmid:21128639
  • scopus:80052089534
ISSN
1520-5207
DOI
10.1021/jp108956v
language
English
LU publication?
yes
id
4c53d8d3-7db8-425b-81b3-811f4fbff4fb (old id 1756756)
date added to LUP
2010-12-30 11:11:33
date last changed
2018-05-29 09:36:07
@article{4c53d8d3-7db8-425b-81b3-811f4fbff4fb,
  abstract     = {The 2s and 2p photoelectron spectra have been measured for Na(+), Mg(2+), and Al(3+) ions in aqueous solution. In all cases, the 2s lines are significantly broader than the 2p features, which is attributed to a shorter lifetime of the respective 2s hole. Since intraionic Coster-Kronig decay channels from the (2s)(-1) state are closed for free Na(+), Mg(2+), and Al(3+) ions, this is evidence for an intermolecular Coster-Kronig-like process, reminiscent of intermolecular Coulombic decay (ICD), involving neighboring water solvent molecules. The observed 2s Lorentzian line widths correspond to lifetimes of the (2s)(-1) state of 3.1, 1.5, and 0.98 fs for the solvated Na, Mg, and Al ions, respectively.},
  author       = {Öhrwall, Gunnar and Ottosson, N and Pokapanich, W and Legendre, S and Svensson, S and Björneholm, O},
  issn         = {1520-5207},
  language     = {eng},
  number       = {51},
  pages        = {17057--17061},
  publisher    = {The American Chemical Society},
  series       = {The Journal of Physical Chemistry Part B},
  title        = {Charge Dependence of Solvent-Mediated Intermolecular Coster-Kronig Decay Dynamics of Aqueous Ions.},
  url          = {http://dx.doi.org/10.1021/jp108956v},
  volume       = {114},
  year         = {2010},
}