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The Kinetic Energy of PAH Dication and Trication Dissociation Determined by Recoil-Frame Covariance Map Imaging

Lee, Jason W.l. ; Tikhonov, Denis ; Allum, Felix ; Boll, Rebecca ; Chopra, Pragya ; Erk, Benjamin ; Gruet, Sébastien ; He, Lanhai ; Heathcote, David and Kazemi, Mehdi , et al. (2022) In Physical Chemistry Chemical Physics 24(38). p.23096-23105
Abstract
We investigated the dissociation of dications and trications of three polycyclic aromatic hydrocarbons (PAHs), fluorene, phenanthrene, and pyrene. PAHs are a family of molecules ubiquitous in space and involved in much of the chemistry of the interstellar medium. In our experiments, ions are formed by interaction with 30.3 nm extreme ultraviolet (XUV) photons, and their velocity map images are recorded using a PImMS2 multi-mass imaging sensor. Application of recoil-frame covariance analysis allows the total kinetic energy release (TKER) associated with multiple fragmentation channels to be determined to high precision, ranging 1.94-2.60 eV and 2.95-5.29 eV for the dications and trications, respectively. Experimental measurements are... (More)
We investigated the dissociation of dications and trications of three polycyclic aromatic hydrocarbons (PAHs), fluorene, phenanthrene, and pyrene. PAHs are a family of molecules ubiquitous in space and involved in much of the chemistry of the interstellar medium. In our experiments, ions are formed by interaction with 30.3 nm extreme ultraviolet (XUV) photons, and their velocity map images are recorded using a PImMS2 multi-mass imaging sensor. Application of recoil-frame covariance analysis allows the total kinetic energy release (TKER) associated with multiple fragmentation channels to be determined to high precision, ranging 1.94-2.60 eV and 2.95-5.29 eV for the dications and trications, respectively. Experimental measurements are supported by Born-Oppenheimer molecular dynamics (BOMD) simulations. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Chemistry Chemical Physics
volume
24
issue
38
pages
10 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85135261689
ISSN
1463-9084
DOI
10.1039/D2CP02252D
language
English
LU publication?
yes
id
cea9fb6d-cf8e-40ab-b438-c444bd91cbca
alternative location
http://pubs.rsc.org/en/Content/ArticleLanding/2022/CP/D2CP02252D
date added to LUP
2022-07-01 08:38:44
date last changed
2024-01-24 14:17:28
@article{cea9fb6d-cf8e-40ab-b438-c444bd91cbca,
  abstract     = {{We investigated the dissociation of dications and trications of three polycyclic aromatic hydrocarbons (PAHs), fluorene, phenanthrene, and pyrene. PAHs are a family of molecules ubiquitous in space and involved in much of the chemistry of the interstellar medium. In our experiments, ions are formed by interaction with 30.3 nm extreme ultraviolet (XUV) photons, and their velocity map images are recorded using a PImMS2 multi-mass imaging sensor. Application of recoil-frame covariance analysis allows the total kinetic energy release (TKER) associated with multiple fragmentation channels to be determined to high precision, ranging 1.94-2.60 eV and 2.95-5.29 eV for the dications and trications, respectively. Experimental measurements are supported by Born-Oppenheimer molecular dynamics (BOMD) simulations.}},
  author       = {{Lee, Jason W.l. and Tikhonov, Denis and Allum, Felix and Boll, Rebecca and Chopra, Pragya and Erk, Benjamin and Gruet, Sébastien and He, Lanhai and Heathcote, David and Kazemi, Mehdi and Lahl, Jan and Lemmens, Alexander K. and Loru, Donatella and Maclot, Sylvain and Mason, Robert and Müller, Erland and Mullins, Terry and Passow, Christopher and Peschel, Jasper and Ramm, Daniel and Steber, Amanda L and Bari, Sadia and Brouard, Mark and Burt, Michael and Küpper, Jochen and Eng-johnsson, Per and Rijs, Anouk and Rolles, Daniel and Vallance, Claire and Manschwetus, Bastian and Schnell, Melanie}},
  issn         = {{1463-9084}},
  language     = {{eng}},
  number       = {{38}},
  pages        = {{23096--23105}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Physical Chemistry Chemical Physics}},
  title        = {{The Kinetic Energy of PAH Dication and Trication Dissociation Determined by Recoil-Frame Covariance Map Imaging}},
  url          = {{http://dx.doi.org/10.1039/D2CP02252D}},
  doi          = {{10.1039/D2CP02252D}},
  volume       = {{24}},
  year         = {{2022}},
}