Three-dimensional ion imaging study of PCl3photodissociation at 235 nm

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

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

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.

Язык оригиналаанглийский
Название основной публикацииInternational 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"
РедакторыValeriy N. Azyazov, Alexander M. Mebel
ИздательAmerican Institute of Physics Inc.
ISBN (электронное издание)9780735440401
DOI
СостояниеОпубликовано - 8 дек 2020
Событие2nd 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, Российская Федерация
Продолжительность: 26 июл 202130 июл 2021

Серия публикаций

НазваниеAIP Conference Proceedings
Том2304
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

Конференция

Конференция2nd 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
СтранаРоссийская Федерация
ГородSamara
Период26.07.202130.07.2021

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