Energy transfer processes in reactions of He(23S) with triatomic molecules. II. H2O and H2S
| Autor: | Konrad T. Wu, Andrew J. Yencha |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
Hydrogen
Triatomic molecule General Physics and Astronomy chemistry.chemical_element Balmer series Photochemistry Spectral line Dissociation (psychology) Ion Afterglow symbols.namesake chemistry Penning ionization medicine symbols Physical chemistry Physical and Theoretical Chemistry medicine.symptom |
| Zdroj: | Chemical Physics. 32:247-255 |
| ISSN: | 0301-0104 |
| DOI: | 10.1016/0301-0104(78)87057-8 |
| Popis: | The energy transfer reactions He(2 3 S) + H 2 O and He(2 3 S) + H 2 S were studied spectroscopically in the visible and ultraviolet ranges in a flowing afterglow apparatus. No primary triatomic ion emission was observed in this study. Only dissociative fragments were found to emit. In the He(2 3 S)/H 2 O system intense OH(A 2 Σ + → X 2 Π i ) emission bands and hydrogen Balmer series were observed while in the He(2 3 S)/H 2 S system intense HS + (A 3 Π i → X 3 Σ − ), weak hydrogen Balmer series and some atomic sulfur lines were found. It is concluded that dissociative processes are competitive with Penning ionization in these energy transfer reactions with other possible reaction channels playing inferior roles. The post-ionization process of ion—electron recombination in the flowing afterglow dominates the emission results in the He(2 3 S)/H 2 O system. |
| Databáze: | OpenAIRE |
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