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Details van artikel 25 van 38 gevonden artikelen
| Titel: |
Photoelectron-photofragment angular correlations in the dissociative photodetachment of HOCO- |
| Auteur: |
Lu, Zhou Oakman, Jonathan E. Hu, Qichi Continetti, Robert E. |
| Verschenen in: |
Molecular physics |
| Paginering: | Jaargang 106 (2008) nr. 2-4 pagina's 595-606 |
| Jaar: |
2008-01 |
| Inhoud: |
A coincidence study of the photoelectron-photofragment angular distributions in the one- and two-photon dissociative photodetachment (DPD) of HOCO- is reported. The photoelectron angular distributions in the one-photon DPD channels HOCO- + hν → OH + CO + e- and HOCO- + hν → H + CO2 + e- at Ehν = 3.21 eV are examined in both the laboratory and neutral photofragment recoil frames, while the angular distributions of the OH + CO products in the laboratory frame are also investigated. The results show a parallel dipole transition for the DPD of HOCO-. The radical lifetime was examined as a function of the orientation of the transition dipole, with upper limits of 9 × 10-13 s and 1.3 × 10-12 s estimated for HOCO and DOCO lifetime for dissociation into OH/OD + CO, respectively. The photoelectron-photofragment angular correlation in the two-photon DPD of HOCO- is also presented, showing that when the photon energy is near the photodetachment threshold, a molecular anion like HOCO- can be effectively aligned through a continuum shape resonance. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 25 van 38 gevonden artikelen
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