Coulomb explosion imaging of concurrent CH$_{2}$BrI photodissociation dynamics
Chemical Physics
2017-11-22 v1
Abstract
The dynamics following laser-induced molecular photodissociation of gas-phase CHBrI at 271.6 nm were investigated by time-resolved Coulomb explosion imaging using intense near-IR femtosecond laser pulses. The observed delay-dependent photofragment momenta reveal that CHBrI undergoes C-I cleavage, depositing 65.6% of the available energy into internal product states, and that absorption of a second UV photon breaks the C-Br bond of CHBr. Simulations confirm that this mechanism is consistent with previous data recorded at 248 nm, demonstrating the sensitivity of Coulomb explosion imaging as a real-time probe of chemical dynamics.
Keywords
Cite
@article{arxiv.1710.02372,
title = {Coulomb explosion imaging of concurrent CH$_{2}$BrI photodissociation dynamics},
author = {Michael Burt and Rebecca Boll and Jason W. L. Lee and Kasra Amini and Hansjochen Köckert and Claire Vallance and Alexander S. Gentleman and Stuart R. Mackenzie and Sadia Bari and Cédric Bomme and Stefan Düsterer and Benjamin Erk and Bastian Manschwetus and Erland Müller and Dimitrios Rompotis and Evgeny Savelyev and Nora Schirmel and Simone Techert and Rolf Treusch and Jochen Küpper and Sebastian Trippel and Joss Wiese and Henrik Stapelfeldt and Barbara Cunha de Miranda and Renaud Guillemin and Iyas Ismail and Loïc Journel and Tatiana Marchenko and Jérôme Palaudoux and Francis Penent and Maria Novella Piancastelli and Marc Simon and Oksana Travnikova and Felix Brausse and Gildas Goldsztejn and Arnaud Rouzée and Marie Géléoc and Romain Geneaux and Thierry Ruchon and Jonathan Underwood and David M. P. Holland and Andrey S. Mereshchenko and Pavel K. Olshin and Per Johnsson and Sylvain Maclot and Jan Lahl and Artem Rudenko and Farzaneh Ziaee and Mark Brouard and Daniel Rolles},
journal= {arXiv preprint arXiv:1710.02372},
year = {2017}
}
Comments
19 pages, 6 figures. Accepted for publication in Physical Review A