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MO: Molekülphysik

MO 22: Poster I

MO 22.9: Poster

Samstag, 5. März 2005, 10:30–12:30, Poster HU

Reaction of mass selected vanadium oxide cluster ions with oxygen, sulfur dioxide and water. — •Mathias Brümmer¹, Sara Fontanella¹, Cristina Kaposta¹, Gabriele Santambrogio¹, Ludger Wöste¹, and Knut Asmis² — ¹Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, 14195 Berlin — ²Fritz Haber Institut der Max Planck Gesellschaft, Abteilung Molekülphysik, Faradayweg 4-6, 14195 Berlin

Using a temperature-controllable frequency ion trap, we investigated the reaction kintetics of vanadium oxide cluster anions and cations with oxygen, sulfur dioxide and water under multi-collision conditions. The ion trap is inserted into a tandem quadrupole mass spectrometer to investigate mass selected cluster ions. By mass selected detection of the formed reaction products as a function of trap temperature and trapping time we were able to get informations about reaction paths and the kinetics of product formation.