Abstract
Neutral binary clusters of Pb-As, Pb-Se, Pb-Te, Bi-In and Bi-Te are generated by inert gas condensation in a double oven source and probed by electron impact. Cluster ions corresponding to the Zintl polyanions Pb 2−5 and Pb 4−9 with respect to atom and valence electron number, are strongly enriched by electron induced dissociation ((Pb2As3)+, (Bi4In)+, (Pb4As5)+, (Bi7In2)+). For the corresponding systems, no other compound cluster ions are enriched in a comparable manner. Enhanced stability is found for (Pbn−1As)+ (n=7, 10, 13) and (Bi3Te)+, which are isoelectronic with neutral ‘magic’ Pbn clusters and the very stable Bi4 molecule, respectively.
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Schild, D., Pflaum, R., Riefer, G. et al. Compound clusters of heavy post-transition elements. Z Phys D - Atoms, Molecules and Clusters 10, 329–335 (1988). https://doi.org/10.1007/BF01384868
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DOI: https://doi.org/10.1007/BF01384868