Answers are grounded in this paper and cite their sources.
Direct fusion of the appropriate elements readily produces the A4Ge9 compounds (A = Rb, Cs), which contain discrete Ge clusters with the shape of monocapped square antiprisms (structure shown on the right). The clusters are the first deltahedral Zintl ions that can be made from solution as well as by a solid-state reaction.
No takes yet. Share an insight, caveat, or question.
Quéneau et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: