Identification of the roaming mechanism and the formation of H3+ in core ionised cyclopropane
Lindblom, Ville LU
; Ganguly, Smita
LU
; Walsh, Noelle
LU
; Gisselbrecht, Mathieu
LU
and Sorensen, Stacey L.
LU
(2026)
In Physical Chemistry Chemical Physics
28(12).
p.7344-7351
- Abstract
Spectroscopic validation of the roaming process in molecular dissociation was first reported for formaldehyde, but today roaming is acknowledged to be a nearly ubiquitous dissociation pathway. The process has been described as a frustrated dissociation process, and as such, direct detection of the roaming process is challenging. In the present study the cyclopropane dication is the starting point for a roaming process that results in the production of H3+. In our experiment, we measure the complete momenta of all charged fragments and unravel the kinematics for relevant fragmentation processes. We present a comprehensive study of the process comparing alternative pathways for dissociation and their kinematics in... (More)
Spectroscopic validation of the roaming process in molecular dissociation was first reported for formaldehyde, but today roaming is acknowledged to be a nearly ubiquitous dissociation pathway. The process has been described as a frustrated dissociation process, and as such, direct detection of the roaming process is challenging. In the present study the cyclopropane dication is the starting point for a roaming process that results in the production of H3+. In our experiment, we measure the complete momenta of all charged fragments and unravel the kinematics for relevant fragmentation processes. We present a comprehensive study of the process comparing alternative pathways for dissociation and their kinematics in association to the roaming process. In this study, inner-shell electron ionisation leads to dication states, these final electronic states are fundamentally identical to ones reached via direct double ionisation.
(Less)
- author
- Lindblom, Ville
LU
; Ganguly, Smita
LU
; Walsh, Noelle
LU
; Gisselbrecht, Mathieu
LU
and Sorensen, Stacey L.
LU
- organization
-
- LU Profile Area: Light and Materials
- Synchrotron Radiation Research
- MAX IV, Science division
- LTH Profile Area: Aerosols
- Lund Laser Centre, LLC
- LTH Profile Area: Photon Science and Technology
- Sentio: Integrated Sensors and Adaptive Technology for Sustainable Products and Manufacturing
- Pufendorf Institute for Advanced Studies
- publishing date
- 2026-02-25
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Chemistry Chemical Physics
- volume
- 28
- issue
- 12
- pages
- 8 pages
- publisher
- Royal Society of Chemistry
- external identifiers
-
- scopus:105031743920
- pmid:41774538
- ISSN
- 1463-9076
- DOI
- 10.1039/d5cp04926a
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: This journal is © the Owner Societies, 2026
- id
- be788e37-d77f-4e83-8a59-fa131852b980
- date added to LUP
- 2026-08-16 16:04:50
- date last changed
- 2026-08-18 03:29:09
@article{be788e37-d77f-4e83-8a59-fa131852b980,
abstract = {{<p>Spectroscopic validation of the roaming process in molecular dissociation was first reported for formaldehyde, but today roaming is acknowledged to be a nearly ubiquitous dissociation pathway. The process has been described as a frustrated dissociation process, and as such, direct detection of the roaming process is challenging. In the present study the cyclopropane dication is the starting point for a roaming process that results in the production of H<sub>3</sub><sup>+</sup>. In our experiment, we measure the complete momenta of all charged fragments and unravel the kinematics for relevant fragmentation processes. We present a comprehensive study of the process comparing alternative pathways for dissociation and their kinematics in association to the roaming process. In this study, inner-shell electron ionisation leads to dication states, these final electronic states are fundamentally identical to ones reached via direct double ionisation.</p>}},
author = {{Lindblom, Ville and Ganguly, Smita and Walsh, Noelle and Gisselbrecht, Mathieu and Sorensen, Stacey L.}},
issn = {{1463-9076}},
language = {{eng}},
month = {{02}},
number = {{12}},
pages = {{7344--7351}},
publisher = {{Royal Society of Chemistry}},
series = {{Physical Chemistry Chemical Physics}},
title = {{Identification of the roaming mechanism and the formation of H<sub>3</sub>+ in core ionised cyclopropane}},
url = {{http://dx.doi.org/10.1039/d5cp04926a}},
doi = {{10.1039/d5cp04926a}},
volume = {{28}},
year = {{2026}},
}