Abstract
The ionization and the fragmentation properties of Ag(NH3) n heteroclusters have been studied. The measured ion yield spectra near the threshold for complexes withn=2−20 indicate strong differences of the cluster geometry in the electronic ground and in the ionized state, respectively. For smaller clusters (n≤6) in the neutral ground state the nonsolvated Ag atom is localized near the surface of the complex. A modification of the surface structure at the transition to larger clusters (n≥7) is suggested by significant changes in the ionization and fragmentation behaviour. Preliminary results of ab initio calculations confirm the conclusion that due to the correlation interaction between the valence electron and the 4d electrons of the Ag atom no solvation effects occur.
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Freudenberg, T., Radloff, W., Ritze, H.H. et al. Laser ionization spectroscopy of Ag(NH3) n clusters. Z Phys D - Atoms, Molecules and Clusters 33, 119–124 (1995). https://doi.org/10.1007/BF01437430
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DOI: https://doi.org/10.1007/BF01437430