Get access

[Co@Ge10]3−: An Intermetalloid Cluster with Archimedean Pentagonal Prismatic Structure


  • J.-Q.W. is grateful to the Alexander von Humboldt Foundation (AvH) for its financial support.


Inorganic pentaprismane: The unusual structure of the anion [Co@Ge10]3−, which was obtained by the reaction of K4Ge9 with [Co(C8H12)(C8H13)] in ethylenediamine, raises questions about chemical bonding in the anion. The Zintl ion cluster has virtual D5h symmetry and is a unique example of a ligand-free cluster that is not a deltahedron. The delocalized chemical bonding is represented in the picture by one of the bonding orbitals of the anion.

original image
Get access to the full text of this article