Experiments on size-selected metal cluster ions in a triple quadrupole arrangement


A high flux of positively and negatively charged metal cluster ions was produced in a sputtering arrangement, energy-analyzed and mass-filtered. The resulting mono-dispersed cluster ion beam was introduced into a quadrupole drift tube, where it interacted with a laser beam or reacted with an introduced gas. All inelastic scattering events were recorded with a subsequent quadrupole mass filter. The results exhibited a high sensitivity of positively and negatively charged silver clusters Ag ±n (n≤16) with respect to photofragmentation. Ion-molecule reactions of nickel clusters with carbon monoxide allowed to synthesize very interesting organometallic and carbonyl compounds, and the maximum number of ligands provided interesting structural indications.

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Fayet, P., Wöste, L. Experiments on size-selected metal cluster ions in a triple quadrupole arrangement. Z Phys D - Atoms, Molecules and Clusters 3, 177–182 (1986). https://doi.org/10.1007/BF01384804

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