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Updated: Jan 9, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
Published on: February 11, 2012
Ag12[Ge9(Hyp)2]6 An Intermetalloid Cluster with Bis-Silylated Ge9 Units
Kevin Woern1, Claudio Schrenk1, Eric Juratti2
1Institute of Inorganic Chemistry, University of Tuebingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
Abstract:
We present the synthesis and characterization of the novel intermetalloid cluster compound Ag12[Ge9(Hyp)2]6, exhibiting a silver core surrounded by bis-silylated Ge9-clusters. The new intermetalloid cluster has an Ag12 metal cluster core with silver atoms in different oxidation states. To the silver core six [Ge9(Hyp)2] units are coordinated, acting as ligands. The [Ge9(Hyp)2] units are arranged octahedrally around the Ag12 core, leading to a variety of Ag-Ge bonds and contacts. The cluster is a first example of an intermetalloid cluster, exhibiting a silver core, shielded by [Ge9(Hyp)2] units.
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