Three-dimensional ion imaging study of PCl3photodissociation at 235 nm

A. I. Chichinin, C. Maul, K. H. Gericke

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationInternational 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"
EditorsValeriy N. Azyazov, Alexander M. Mebel
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440401
DOIs
Publication statusPublished - 8 Dec 2020
Event2nd 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 - Samara, Russian Federation
Duration: 26 Jul 202130 Jul 2021

Publication series

NameAIP Conference Proceedings
Volume2304
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd 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
CountryRussian Federation
CitySamara
Period26.07.202130.07.2021

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