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Updated: May 5, 2026

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
Published on: August 18, 2017
Slice imaging of methyl bromide photofragmentation at 193 nm
Fengyan Wang1, M Laura Lipciuc, Andreas Kartakoullis
1Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Voutes, 71110, Heraklion, Greece. theo@iesl.forth.gr.
Abstract:
The photodissociation of methyl bromide at 193 nm is studied using slice imaging. From the measured photofragment translational energy and angular distributions we were able to extract methyl-state-specific dissociation channel yields and crossing probabilities between (3)Q0 and (1)Q1 surfaces. The angular distributions for the Bromine photofragments show a strong dependence on the total translational energy release. Nonadiabatic transition probabilities from the (3)Q0 to (1)Q1 surface dominate the dynamics in this excitation energy region and for most of the methyl vibrational states probed.
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