Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics

Burt, Michael; Boll, Rebecca; Lee, Jason W.  L.; Amini, Kasra; Köckert, Hansjochen; Vallance, Claire; Gentleman, Alexander S.; Mackenzie, Stuart R.; Bari, Sadia; Bomme, Cédric; Düsterer, Stefan; Erk, Benjamin; Manschwetus, Bastian; Müller, Erland; Rompotis, Dimitrios; Savelyev, Evgeny; Schirmel, Nora; Techert, Simone; Treusch, Rolf; Küpper, Jochen; Trippel, Sebastian; Wiese, Joss; Stapelfeldt, Henrik; de Miranda, Barbara Cunha; Guillemin, Renaud; Ismail, Iyas; Journel, Loïc; Marchenko, Tatiana; Palaudoux, Jérôme; Penent, Francis; Piancastelli, Maria Novella; Simon, Marc; Travnikova, Oksana; Brausse, Felix; Goldsztejn, Gildas; Rouzée, Arnaud; Géléoc, Marie; Geneaux, Romain; Ruchon, Thierry; Underwood, Jonathan; Holland, David M.  P.; Mereshchenko, Andrey S.; Olshin, Pavel K.; Johnsson, Per; Maclot, Sylvain; Lahl, Jan; Rudenko, Artem; Ziaee, Farzaneh; Brouard, Mark; Rolles, Daniel

doi:10.1103/physreva.96.043415

Title: Coulomb-explosion imaging of concurrent ${CH}_{2} BrI$ photodissociation dynamics

Journal Article · Tue Oct 17 00:00:00 EDT 2017 · Physical Review A

DOI:https://doi.org/10.1103/physreva.96.043415· OSTI ID:1540659

Burt, Michael ^[1]; Boll, Rebecca ^[2]; Lee, Jason W. L. ^[1]; Amini, Kasra ^[1]; Köckert, Hansjochen ^[1]; Vallance, Claire ^[1]; Gentleman, Alexander S. ^[3]; Mackenzie, Stuart R. ^[3]; Bari, Sadia ^[2]; Bomme, Cédric ^[2]; Düsterer, Stefan ^[2]; Erk, Benjamin ^[2]; Manschwetus, Bastian ^[2]; Müller, Erland ^[2]; Rompotis, Dimitrios ^[2]; Savelyev, Evgeny ^[2]; Schirmel, Nora ^[2]; Techert, Simone ^[4]; Treusch, Rolf ^[2]; Küpper, Jochen ^[5] more »

Univ. of Oxford (United Kingdom). The Chemistry Research Lab.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Univ. of Oxford (United Kingdom). The Physical and Theoretical Chemistry Lab.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Max Planck Inst. for Biophysical Chemistry, Gottingen (Germany); Univ. of Gottingen (Germany). Inst. of X-ray Physics
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Univ. Hamburg (Germany). Center for Ultrafast Imaging; Univ. Hamburg (Germany)
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Univ. Hamburg (Germany). Center for Ultrafast Imaging
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science
Aarhus Univ. (Denmark)
Sorbonne Univ., Paris (France). Lab. de Chimie Physique-Matiere et Rayonnement
Sorbonne Univ., Paris (France). Lab. de Chimie Physique-Matiere et Rayonnement; Uppsala Univ. (Sweden)
Max Born Inst., Berlin (Germany)
Alternative Energies and Atomic Energy Commission (CEA), Saclay (France); Univ. Paris-Saclay, Gif-sur-Yvette (France). LIDYL
Univ. of College London (United Kingdom)
Science and Technology Facilities Council (STFC), Daresbury (United Kingdom). Daresbury Lab.
St. Petersburg State Univ. (Russia)
Lund Univ. (Sweden)
Kansas State Univ., Manhattan, KS (United States). J.R. Macdonald Lab.

The dynamics following laser-induced molecular photodissociation of gas-phase CH₂BrI at 271.6 nm were investigated by time-resolved Coulomb-explosion imaging using intense near-IR femtosecond laser pulses. Furthermore, the observed delay-dependent photofragment momenta reveal that CH₂BrI 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 CH₂Br. 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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Research Organization:: Kansas State Univ., Manhattan, KS (United States)

Sponsoring Organization:: German Research Foundation (DFG); Engineering and Physical Sciences Research Council (EPSRC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; USDOE

Grant/Contract Number:: FG02-86ER13491; 05K10KT2; EP/G00224X/1; EP/L005913/1; DFG-EXC1074

OSTI ID:: 1540659

Alternate ID(s):: OSTI ID: 1399807

Journal Information:: Physical Review A, Vol. 96, Issue 4; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 36 works

Citation information provided by
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Title: Coulomb-explosion imaging of concurrent ${CH}_{2} BrI$ photodissociation dynamics