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Erlangen 2022 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 16: Ions

MO 16.5: Vortrag

Donnerstag, 17. März 2022, 11:45–12:00, MO-H5

Time-resolved photon interactions of size- and charge-state selected polyanionic tin clusters — •Alexander Jankowski, Paul Fischer, Moritz Grunwald-Delitz, and Lutz Schweikhard — Institute of Physics, University of Greifswald, Germany

Small tin clusters (Snn of sizes n 50) are formed by so-called building blocks of Sn7, Sn10 [1-3] and, in the case of anionic clusters, Sn15 [3]. These cluster sizes n= 7, 10 and 15 lead to corresponding fragmentation patterns [4,5] which have been confirmed and further investigated [6,7] at the ClusterTrap setup [8]. These previous findings suggested for dianionic tin clusters fission processes into two monoanionic fragments in analogy to the case of lead clusters [9]. Recently, photodissociation experiments have been performed on size- and charge-state-selected polyanionic tin clusters. By delaying the ejection/analysis of the trapped clusters with respect to the pulsed photoexcitation, time-resolved measurements allow the reconstruction of the decay pathways.

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[2] H. Li et al., J. Phys. Chem. C 116, 231-236 (2011)

[3] A. Lechtken et al., J. Chem. Phys. 132, 211102 (2010)

[4] E. Oger et al., J. Chem. Phys. 130, 124305 (2009)

[5] A. Wiesel et al., Phys. Chem. Chem. Phys. 14, 234-245 (2012)

[6] S. König et. al., Eur. Phys. J. D 72, 153 (2018)

[7] M. Wolfram et.al., Eur. Phys. J. D 74, 135 (2020)

[8] F. Martinez et al., Int. J. Mass Spectrom. 266, 365-366 (2014)

[9] S. König et. al., Phys. Rev. Lett. 120, 163001 (2018)

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