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| Home > Publications database > Coulomb-explosion imaging of concurrent $\mathrm{CH_2BrI}$ photodissociation dynamics |
| Journal Article | PUBDB-2017-11808 |
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2017
American Physical Society
Woodbury, NY
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Please use a persistent id in citations: doi:10.1103/PhysRevA.96.043415 doi:10.3204/PUBDB-2017-11808
Abstract: 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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