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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
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
134
issue
3
publisher
American Institute of Physics
external identifiers
  • wos:000286472200003
  • pmid:21261323
  • scopus:79551637793
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
2011-02-10 17:48:13
date last changed
2017-05-21 03:05:01
@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.},
  articleno    = {031103},
  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},
  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},
  volume       = {134},
  year         = {2011},
}