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The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems : The breakup of ammonia clusters upon single photon multi-ionization

Oostenrijk, Bart LU ; Walsh, Noelle LU ; Laksman, Joakim LU ; Månsson, Erik P. LU ; Grunewald, Christian; Sorensen, Stacey L. LU and Gisselbrecht, Mathieu LU (2018) In Physical Chemistry Chemical Physics 20(2). p.932-940
Abstract

The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1-2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ionic fragments. The observed fragmentation pattern of the doubly- and triply-charged clusters reveals a spatial anisotropy of emission between fragments (back-to-back). Protonated fragments exhibit a distinct kinematic correlation, indicating a delay between ionization and fragmentation (fission). The different kinematics observed for channels containing protonated and unprotonated species provides possible insights into the prime mechanisms of charge and proton transfer, as well as... (More)

The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1-2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ionic fragments. The observed fragmentation pattern of the doubly- and triply-charged clusters reveals a spatial anisotropy of emission between fragments (back-to-back). Protonated fragments exhibit a distinct kinematic correlation, indicating a delay between ionization and fragmentation (fission). The different kinematics observed for channels containing protonated and unprotonated species provides possible insights into the prime mechanisms of charge and proton transfer, as well as proton hopping, in such a nanoscale system.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Chemistry Chemical Physics
volume
20
issue
2
pages
9 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85040182549
ISSN
1463-9076
DOI
language
English
LU publication?
yes
id
bddc0c1f-bd7b-4142-a157-e788cd743fc8
date added to LUP
2018-01-15 09:14:48
date last changed
2018-05-29 09:24:03
@article{bddc0c1f-bd7b-4142-a157-e788cd743fc8,
  abstract     = {<p>The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1-2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ionic fragments. The observed fragmentation pattern of the doubly- and triply-charged clusters reveals a spatial anisotropy of emission between fragments (back-to-back). Protonated fragments exhibit a distinct kinematic correlation, indicating a delay between ionization and fragmentation (fission). The different kinematics observed for channels containing protonated and unprotonated species provides possible insights into the prime mechanisms of charge and proton transfer, as well as proton hopping, in such a nanoscale system.</p>},
  author       = {Oostenrijk, Bart and Walsh, Noelle and Laksman, Joakim and Månsson, Erik P. and Grunewald, Christian and Sorensen, Stacey L. and Gisselbrecht, Mathieu},
  issn         = {1463-9076},
  language     = {eng},
  number       = {2},
  pages        = {932--940},
  publisher    = {Royal Society of Chemistry},
  series       = {Physical Chemistry Chemical Physics},
  title        = {The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems : The breakup of ammonia clusters upon single photon multi-ionization},
  url          = {http://dx.doi.org/},
  volume       = {20},
  year         = {2018},
}