Coulomb-explosion imaging of concurrent $\mathrm{CH_2BrI}$ photodissociation dynamics
- Burt, Michael
- Boll, Rebecca
- Düsterer, Stefan
- Erk, Benjamin
- Manschwetus, Bastian
- Mueller, Erland
- Rompotis, Dimitrios
- Savelyev, Evgeny
- Schirmel, Nora
- Techert, Simone
- Treusch, Rolf
- Küpper, Jochen
- Lee, Jason W. L.
- Trippel, Sebastian
- Wiese, Joss
- Stapelfeldt, Henrik
- de Miranda, Barbara Cunha
- Guillemin, Renaud
- Ismail, Iyas
- Journel, Loïc
- Marchenko, Tatiana
- Palaudoux, Jérôme
- Penent, Francis
- Amini, Kasra
- Piancastelli, Maria Novella
- Simon, Marc
- Travnikova, Oksana
- Brausse, Felix
- Goldsztejn, Gildas
- Rouzée, Arnaud
- Géléoc, Marie
- Geneaux, Romain
- Ruchon, Thierry
- Underwood, Jonathan
- Köckert, Hansjochen
- Holland, David M. P.
- Mereshchenko, Andrey S.
- Olshin, Pavel K.
- Johnsson, Per
- Maclot, Sylvain
- Lahl, Jan
- Rudenko, Artem
- Ziaee, Farzaneh
- Brouard, Mark
- Rolles, Daniel
- Vallance, Claire
- Gentleman, Alexander S.
- Mackenzie, Stuart R.
- Bari, Sadia
- Bomme, Cedric
DOIAbstract
The dynamics following laser-induced molecular photodissociation of gas-phase CH$_{2}$BrI 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 CH$_{2}$BrI 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 ofCH$_{2}$Br. 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
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