Berlin 2014 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 5: Molecules, Clusters, Decay and Reactions

MS 5.4: Vortrag

Dienstag, 18. März 2014, 17:30–17:45, DO24 1.205

Novel setup for the investigation of metal-cluster-ligand complexes in the gas phase — •Daniel Neuwirth, Kathrin Lange, Jan Eckhard, Bradley Visser, Martin Tschurl, Ulrich Boesl, and Ueli Heiz — Lehrstuhl für Physikalische Chemie & Catalysis Research Center, Chemistry Department, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany

Many properties, like reactivity, of metal clusters are different from those of the bulk material. While gold is noble under most circumstances the reactivity of gold clusters depends highly upon charge and size. Furthermore noble metal clusters can catalyze various reactions. Our goal is to study metal clusters with organic ligands acting as tracer molecules in the gas phase.

Therefore, a state of the art cluster source was combined with a pulsed gas inlet. The formed cluster-ligand complexes can then be characterized by time-of-flight mass spectrometry or further investigated by different spectroscopic methods.

In a second part of the experiment it is planned to store cluster-ligand complexes within an ion trap. The trapped complexes can then interact with reactant gases present in the trap. Therefore a ring electrode trap is currently added to the experiment.

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