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Communication: Delayed asymmetric Coulomb fission of molecular clusters: Application of a dielectric liquid-drop model.

Wu, Guohua ; Chen, Xiaojing ; Stace, Anthony J and Linse, Per LU (2011) In Journal of Chemical Physics 134(3).
Abstract
Delayed asymmetric Coulomb fission in size-selected molecular dication clusters has been recorded for the first time. Observations on (NH(3))(n) (2+) clusters show that fragmentation accompanied by charge separation can occur on a microsecond time scale, exhibits considerable asymmetry, and involves a kinetic energy release of ∼0.9 eV. The fission process has been modeled by representing the fragments as charged dielectric spheres and the calculated maximum in the electrostatic interaction energy between the fragments gives a good account of the measured kinetic energy release. A simple kinetic model shows that instrumental factors may contribute to the observation of asymmetric fragmentation.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
134
issue
3
article number
031103
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000286472200003
  • pmid:21261323
  • scopus:79551637793
  • pmid:21261323
ISSN
0021-9606
DOI
10.1063/1.3544211
language
English
LU publication?
yes
id
91a7a5b3-63e0-4881-87f1-18bc6d04733b (old id 1777096)
date added to LUP
2016-04-01 10:03:04
date last changed
2025-04-04 14:18:48
@article{91a7a5b3-63e0-4881-87f1-18bc6d04733b,
  abstract     = {{Delayed asymmetric Coulomb fission in size-selected molecular dication clusters has been recorded for the first time. Observations on (NH(3))(n) (2+) clusters show that fragmentation accompanied by charge separation can occur on a microsecond time scale, exhibits considerable asymmetry, and involves a kinetic energy release of ∼0.9 eV. The fission process has been modeled by representing the fragments as charged dielectric spheres and the calculated maximum in the electrostatic interaction energy between the fragments gives a good account of the measured kinetic energy release. A simple kinetic model shows that instrumental factors may contribute to the observation of asymmetric fragmentation.}},
  author       = {{Wu, Guohua and Chen, Xiaojing and Stace, Anthony J and Linse, Per}},
  issn         = {{0021-9606}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Journal of Chemical Physics}},
  title        = {{Communication: Delayed asymmetric Coulomb fission of molecular clusters: Application of a dielectric liquid-drop model.}},
  url          = {{http://dx.doi.org/10.1063/1.3544211}},
  doi          = {{10.1063/1.3544211}},
  volume       = {{134}},
  year         = {{2011}},
}