Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction.
The hydrogen or deuterium atom abstraction reactions between Cl((2)P(3/2)) and methane, or its deuterated analogues CD(4) and CH(2)D(2), have been studied at mean collision energies around 0.34 eV. The experiments were performed in a coexpansion of molecular chlorine and methane in helium, with the...
| Päätekijät: | , , , , |
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| Aineistotyyppi: | Journal article |
| Kieli: | English |
| Julkaistu: |
2005
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| _version_ | 1826272532902182912 |
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| author | Bass, M Brouard, M Cireasa, R Clark, A Vallance, C |
| author_facet | Bass, M Brouard, M Cireasa, R Clark, A Vallance, C |
| author_sort | Bass, M |
| collection | OXFORD |
| description | The hydrogen or deuterium atom abstraction reactions between Cl((2)P(3/2)) and methane, or its deuterated analogues CD(4) and CH(2)D(2), have been studied at mean collision energies around 0.34 eV. The experiments were performed in a coexpansion of molecular chlorine and methane in helium, with the atomic Cl reactants generated by polarized laser photodissociation of Cl(2) at 308 nm. The Cl-atom reactants and the methyl radical products were detected using (2+1) resonantly enhanced multiphoton ionization, coupled with velocity-map ion imaging. Analysis of the ion images reveals that in single-beam experiments of this type, careful consideration must be given to the spread of reagent velocities and collision energies. Using the reactions of Cl with CH(4), CD(4), and CH(2)D(2), as examples, it is shown that the data can be fitted well if the reagent motion is correctly described, and the angular scattering distributions can be obtained with confidence. New evidence is also provided that the CD(3) radicals from the Cl+CD(4) reaction possess significant rotational alignment under the conditions of the present study. The results are compared with previous experimental and theoretical works, where these are available. |
| first_indexed | 2024-03-06T22:14:03Z |
| format | Journal article |
| id | oxford-uuid:52cdd7ff-7bf7-4fee-ad2f-b59d6722a697 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:14:03Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:52cdd7ff-7bf7-4fee-ad2f-b59d6722a6972022-03-26T16:27:39ZImaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:52cdd7ff-7bf7-4fee-ad2f-b59d6722a697EnglishSymplectic Elements at Oxford2005Bass, MBrouard, MCireasa, RClark, AVallance, CThe hydrogen or deuterium atom abstraction reactions between Cl((2)P(3/2)) and methane, or its deuterated analogues CD(4) and CH(2)D(2), have been studied at mean collision energies around 0.34 eV. The experiments were performed in a coexpansion of molecular chlorine and methane in helium, with the atomic Cl reactants generated by polarized laser photodissociation of Cl(2) at 308 nm. The Cl-atom reactants and the methyl radical products were detected using (2+1) resonantly enhanced multiphoton ionization, coupled with velocity-map ion imaging. Analysis of the ion images reveals that in single-beam experiments of this type, careful consideration must be given to the spread of reagent velocities and collision energies. Using the reactions of Cl with CH(4), CD(4), and CH(2)D(2), as examples, it is shown that the data can be fitted well if the reagent motion is correctly described, and the angular scattering distributions can be obtained with confidence. New evidence is also provided that the CD(3) radicals from the Cl+CD(4) reaction possess significant rotational alignment under the conditions of the present study. The results are compared with previous experimental and theoretical works, where these are available. |
| spellingShingle | Bass, M Brouard, M Cireasa, R Clark, A Vallance, C Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title | Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title_full | Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title_fullStr | Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title_full_unstemmed | Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title_short | Imaging photon-initiated reactions: a study of the Cl(2P(3/2))+CH4-->HCl+CH3 reaction. |
| title_sort | imaging photon initiated reactions a study of the cl 2p 3 2 ch4 gt hcl ch3 reaction |
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