SAMOP 2023 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 13: Poster II

MO 13.12: Poster

Mittwoch, 8. März 2023, 16:30–19:00, Empore Lichthof

Reactive Scattering of the oxygen atom transpher reaction between Carbondioxide and group V cations — •Maximilian Huber¹, Marcel Meta¹, Atilay Ayasli², Tim Michaelsen², Roland Wester², and Jennifer Meyer¹ — ¹RPTU Kaiserslautern-Landau Fachbereich Chemie, Kaiserslautern, Germany — ²Universität Innsbruck Institut für Ionenphysik und angewandte Physik, Innsbruck, Austria

With our method we investigate the atomistic dynamics of elementary reactions like the oxygen atom transfer of CO₂ with transition metal cations under single collision conditions. We achieve this by recording energy and angle differential cross sections by means of product ion velocity distributions after a reactive collision. [1]

Here, we present our first results for the oxygen atom transfer reaction Nb⁺ + CO₂ —→ NbO⁺ + CO measured with our 3D crossed beam velocitiy map imaging experiment. The reaction is exothermic by 1.68 eV and is spin forbidden in its electronic ground state. Nevertheless the reaction was found to have relativ high reaction efficiencies at room temperature. [2,3] We recorded energy dependent velocity map images of the Niobium reaction at different energies. Also, we compared these results to the reaction of the heavier homologue tantalum Ta⁺ + CO₂ —→ TaO⁺ + CO .
[1] J. Meyer, R. Wester, Annu. Rev. Phys. Chem. 2017, 68, 333. [2] M.R. Sievers, P.B. Armentrout, Int. J. Mass. Spec., 1998, 179/180, 103. [3] G. K. Koyanagi, D. K. Bohme, J. Phys. Chem. A 2006, 110, 1232.