| Autor: |
Carrascosa, Eduardo, Stei, Martin, Kainz, Martin A., Wester, Roland |
| Předmět: |
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| Zdroj: |
Molecular Physics; Dec2015, Vol. 113 Issue 24, p3955-3963, 9p |
| Abstrakt: |
The proton transfer reaction HOCO++CO → HCO+/HOC+has been studied using crossed-beam velocity map imaging. Angular and energy differential cross sections were obtained for collision energies from 0.3 to 2.3 eV. Scattering in forward direction together with a prominent scattering angle-dependent internal excitation is found at all collision energies. The exothermic HCO+product appears to be very dominant even at energies above the energy threshold for the formation of metastable HOC+ion. To determine the HOC+contribution for different angular ranges, a model has been developed. We obtain an upper limit for the HOC+product isomer fraction of <2%. In theoretical calculations, we find the CO2-catalysed isomerisation channel to be energetically accessible. However, it may not have a strong impact on the isomer ratio. Chemical dynamics simulations are needed to shed more light on this question. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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