Dissociative double-photoionization of butadiene in the 25-45 eV energy range using 3-D multi-coincidence ion momentum imaging spectrometry
Oghbaie, Shabnam LU ; Gisselbrecht, Mathieu LU
; Laksman, Joakim
LU
and Ristinmaa Sörensen, Stacey
LU
(2015)
In Journal of Chemical Physics
143(11).
p.114309-114309
- Abstract
- Dissociative double-photoionization of butadiene in the 25-45 eV energy range has been studied
with tunable synchrotron radiation using full three-dimensional ion momentum imaging. Using ab
initio calculations, the electronic states of the molecular dication below 33 eV are identified. The
results of the measurement and calculation show that double ionization from π orbitals selectively
triggers twisting about the terminal or central C–C bonds. We show that this conformational rearrangement
depends upon the dication electronic state, which effectively acts as a gateway for the
dissociation reaction pathway. For photon energies above 33 eV, three-body dissociation channels
where... (More) - Dissociative double-photoionization of butadiene in the 25-45 eV energy range has been studied
with tunable synchrotron radiation using full three-dimensional ion momentum imaging. Using ab
initio calculations, the electronic states of the molecular dication below 33 eV are identified. The
results of the measurement and calculation show that double ionization from π orbitals selectively
triggers twisting about the terminal or central C–C bonds. We show that this conformational rearrangement
depends upon the dication electronic state, which effectively acts as a gateway for the
dissociation reaction pathway. For photon energies above 33 eV, three-body dissociation channels
where neutral H-atom evaporation precedes C–C charge-separation in the dication species appear in
the correlation map. The fragment angular distributions support a model where the dication species
is initially aligned with the molecular backbone parallel to the polarization vector of the light,
indicating a high probability for double-ionization to the “gateway states” for molecules with this orientation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8000905
- author
- Oghbaie, Shabnam
LU
; Gisselbrecht, Mathieu
LU
; Laksman, Joakim
LU
and Ristinmaa Sörensen, Stacey
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 143
- issue
- 11
- pages
- 114309 - 114309
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- pmid:26395707
- wos:000361843900032
- scopus:84942057946
- pmid:26395707
- ISSN
- 0021-9606
- DOI
- 10.1063/1.4931104
- language
- English
- LU publication?
- yes
- id
- 0c74b431-b084-462c-af25-5ecc457900cb (old id 8000905)
- date added to LUP
- 2016-04-01 11:05:30
- date last changed
- 2024-05-06 04:33:39
@article{0c74b431-b084-462c-af25-5ecc457900cb,
abstract = {{Dissociative double-photoionization of butadiene in the 25-45 eV energy range has been studied<br/><br>
with tunable synchrotron radiation using full three-dimensional ion momentum imaging. Using ab<br/><br>
initio calculations, the electronic states of the molecular dication below 33 eV are identified. The<br/><br>
results of the measurement and calculation show that double ionization from π orbitals selectively<br/><br>
triggers twisting about the terminal or central C–C bonds. We show that this conformational rearrangement<br/><br>
depends upon the dication electronic state, which effectively acts as a gateway for the<br/><br>
dissociation reaction pathway. For photon energies above 33 eV, three-body dissociation channels<br/><br>
where neutral H-atom evaporation precedes C–C charge-separation in the dication species appear in<br/><br>
the correlation map. The fragment angular distributions support a model where the dication species<br/><br>
is initially aligned with the molecular backbone parallel to the polarization vector of the light,<br/><br>
indicating a high probability for double-ionization to the “gateway states” for molecules with this orientation.}},
author = {{Oghbaie, Shabnam and Gisselbrecht, Mathieu and Laksman, Joakim and Ristinmaa Sörensen, Stacey}},
issn = {{0021-9606}},
language = {{eng}},
number = {{11}},
pages = {{114309--114309}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Chemical Physics}},
title = {{Dissociative double-photoionization of butadiene in the 25-45 eV energy range using 3-D multi-coincidence ion momentum imaging spectrometry}},
url = {{https://lup.lub.lu.se/search/files/2370306/8000916.pdf}},
doi = {{10.1063/1.4931104}},
volume = {{143}},
year = {{2015}},
}