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Size selective spectroscopy of Se microclusters

Kooser, K.; Ha, D. T.; Itala, E.; Laksman, Joakim LU ; Urpelainen, Samuli LU and Kukk, E. (2012) In Journal of Chemical Physics 137(4).
Abstract
The electronic structure and photofragmentation in outer and inner valence regions of Se-n (n <= 8) clusters produced by direct vacuum evaporation have been studied with size-selective photoelectron-photoion coincidence technique by using vacuum-ultraviolet synchrotron radiation. The experimental ionization potentials of these clusters were extracted from the partial ion yield measurements. The calculations for the possible geometrical structures of the Se-n microclusters have been executed. The ionization energies of the clusters have been calculated and compared with the experimental results. In addition, theoretical fragment ion appearance energies were estimated. The dissociation energies of Se-n clusters were derived from the... (More)
The electronic structure and photofragmentation in outer and inner valence regions of Se-n (n <= 8) clusters produced by direct vacuum evaporation have been studied with size-selective photoelectron-photoion coincidence technique by using vacuum-ultraviolet synchrotron radiation. The experimental ionization potentials of these clusters were extracted from the partial ion yield measurements. The calculations for the possible geometrical structures of the Se-n microclusters have been executed. The ionization energies of the clusters have been calculated and compared with the experimental results. In addition, theoretical fragment ion appearance energies were estimated. The dissociation energies of Se-n clusters were derived from the recurrent relation between the gas phase enthalpies of the formation of corresponding cationic clusters and experimental ionization energies. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737633] (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
137
issue
4
publisher
American Institute of Physics
external identifiers
  • wos:000307611500026
  • scopus:85024826058
ISSN
0021-9606
DOI
10.1063/1.4737633
language
English
LU publication?
yes
id
ec223bc7-c200-4d18-8cf2-d6f0f9595b57 (old id 3059825)
date added to LUP
2012-09-26 10:14:56
date last changed
2017-10-01 03:07:09
@article{ec223bc7-c200-4d18-8cf2-d6f0f9595b57,
  abstract     = {The electronic structure and photofragmentation in outer and inner valence regions of Se-n (n &lt;= 8) clusters produced by direct vacuum evaporation have been studied with size-selective photoelectron-photoion coincidence technique by using vacuum-ultraviolet synchrotron radiation. The experimental ionization potentials of these clusters were extracted from the partial ion yield measurements. The calculations for the possible geometrical structures of the Se-n microclusters have been executed. The ionization energies of the clusters have been calculated and compared with the experimental results. In addition, theoretical fragment ion appearance energies were estimated. The dissociation energies of Se-n clusters were derived from the recurrent relation between the gas phase enthalpies of the formation of corresponding cationic clusters and experimental ionization energies. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737633]},
  author       = {Kooser, K. and Ha, D. T. and Itala, E. and Laksman, Joakim and Urpelainen, Samuli and Kukk, E.},
  issn         = {0021-9606},
  language     = {eng},
  number       = {4},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Size selective spectroscopy of Se microclusters},
  url          = {http://dx.doi.org/10.1063/1.4737633},
  volume       = {137},
  year         = {2012},
}