Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Three-dimensional ion imaging study of PCl3photodissociation at 235 nm. / Chichinin, A. I.; Maul, C.; Gericke, K. H.
International Conference on Physics and Chemistry of Combustion and Processes in Extreme Environments, ComPhysChem 20-21 and VI International Summer School "Modern Quantum Chemistry Methods in Applications". ed. / Valeriy N. Azyazov; Alexander M. Mebel. American Institute of Physics Inc., 2020. 0034239 (AIP Conference Proceedings; Vol. 2304).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Three-dimensional ion imaging study of PCl3photodissociation at 235 nm
AU - Chichinin, A. I.
AU - Maul, C.
AU - Gericke, K. H.
N1 - Publisher Copyright: © 2020 Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12/8
Y1 - 2020/12/8
N2 - The dynamics of photodissociation of PCl3 at 235 nm has been studied by monitoring of ground state Cl(2P3/2) and spin-orbitally excited Cl(2P1/2) atoms by REMPI technique. Also, the P+, PCl+, PCl+, and PCl+ photoions have been monitored non-resonantly in parallel with detection of REMPI-produced Cl+ ions. The speed distributions and speed-dependent anisotropy ± parameters β for all these particles have been determined by three-dimensional photofragment ion imaging technique. The β parameters are close to zero for all these particles. The relative yields of excited Cl(2P1/2) atoms for photodissociation of PCl3 is 0.49 0.03. The speed distributions of Cl(2P3/2) and Cl(2P1/2) atoms are bimodal. We explain the bimodal distributions as a result of competition between two REMPI channels. One channel is far-from-resonance one-photon photodissociation, the another channel is near-resonant two-photon ionisation followed by near-resonance one-photon photodissociation.
AB - The dynamics of photodissociation of PCl3 at 235 nm has been studied by monitoring of ground state Cl(2P3/2) and spin-orbitally excited Cl(2P1/2) atoms by REMPI technique. Also, the P+, PCl+, PCl+, and PCl+ photoions have been monitored non-resonantly in parallel with detection of REMPI-produced Cl+ ions. The speed distributions and speed-dependent anisotropy ± parameters β for all these particles have been determined by three-dimensional photofragment ion imaging technique. The β parameters are close to zero for all these particles. The relative yields of excited Cl(2P1/2) atoms for photodissociation of PCl3 is 0.49 0.03. The speed distributions of Cl(2P3/2) and Cl(2P1/2) atoms are bimodal. We explain the bimodal distributions as a result of competition between two REMPI channels. One channel is far-from-resonance one-photon photodissociation, the another channel is near-resonant two-photon ionisation followed by near-resonance one-photon photodissociation.
UR - http://www.scopus.com/inward/record.url?scp=85097994723&partnerID=8YFLogxK
U2 - 10.1063/5.0034239
DO - 10.1063/5.0034239
M3 - Conference contribution
AN - SCOPUS:85097994723
T3 - AIP Conference Proceedings
BT - International Conference on Physics and Chemistry of Combustion and Processes in Extreme Environments, ComPhysChem 20-21 and VI International Summer School "Modern Quantum Chemistry Methods in Applications"
A2 - Azyazov, Valeriy N.
A2 - Mebel, Alexander M.
PB - American Institute of Physics Inc.
T2 - 2nd International Conference on Physics and Chemistry of Combustion and Processes in Extreme Environments, ComPhysChem 20-21 and 6th International Summer School on Modern Quantum Chemistry Methods in Applications
Y2 - 26 July 2021 through 30 July 2021
ER -
ID: 27342014