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

Jason W.l. Lee, Denis Tikhonov, Felix Allum, Rebecca Boll, Pragya Chopra, Benjamin Erk, Sébastien Gruet, Lanhai He, David Heathcote, Mehdi Kazemi, Jan Lahl, Alexander K. Lemmens, Donatella Loru, Sylvain Maclot, Robert Mason, Erland Müller, Terry Mullins, Christopher Passow, Jasper Peschel, Daniel RammAmanda L Steber, Sadia Bari, Mark Brouard, Michael Burt, Jochen Küpper, Per Eng-johnsson, Anouk Rijs, Daniel Rolles, Claire Vallance, Bastian Manschwetus, Melanie Schnell

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Pages (from-to)23096-23105
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume24
Issue number38
Early online date2022
DOIs
Publication statusPublished - 2022

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Fingerprint

Dive into the research topics of 'The Kinetic Energy of PAH Dication and Trication Dissociation Determined by Recoil-Frame Covariance Map Imaging'. Together they form a unique fingerprint.

Cite this