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Article Abstract
We report on reactive scattering studies of the proton transfer and combined hydrogen/proton transfer in the O + CHI reaction. We combine state-of-the-art crossed-beam velocity map imaging and quantum chemistry calculations to understand the dynamics for the formations of the CHI + OH and CHI + HO products. The experimental velocity- and angle-differential cross section show for both products and at all collision energies (between 0.3 and 2.0 eV) that the product ions are predominantly forward scattered. For the CHI + HO channel, the data show lower product velocities, indicative of higher internal excitation, than in the case of single proton transfer. Furthermore, our results suggest that the combined hydrogen/proton transfer proceeds via a two-step process: In the first step, O abstracts one H atom to form OH, and then the transient OH removes an additional proton from CHI to form the energetically stable HO coproduct.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9791656 | PMC |
| http://dx.doi.org/10.1021/acs.jpca.2c06887 | DOI Listing |
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