Imaging the Atomistic Dynamics of Single Proton Transfer and Combined Hydrogen/Proton Transfer in the O^- + CH₃I Reaction.

ABSTRACT: We report on reactive scattering studies of the proton transfer and combined hydrogen/proton transfer in the O^- + CH₃I 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 CH₂I^- + OH and CHI^- + H₂O 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^- + H₂O 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

SUBMITTER: Khan A 

PROVIDER: S-EPMC9791656 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature