σ-Aromaticity-Induced Stabilization of Heterometallic Supertetrahedral Clusters [Zn6Ge16]4− and [Cd6Ge16]4−
Wiley-VCH Verlag GmbH & Co. KGaA
NSF, Division of Chemistry (CHE) 1664379
NSF, Division of Chemistry (CHE)
Driven by strong 3c–2e Zn–Ge–Ge or Cd–Ge–Ge interactions, two unprecedented supertetrahedral clusters [Zn6Ge16]4− and [Cd6Ge16]4− were synthesized through the assembly of [Ge4]4− and transition metal precursors. This strategy provides not only a new method to obtain large heterometallic clusters, but also a new conceptual understanding of how σ-aromaticity induces the stabilization of high-symmetry clusters.
H.-L. Xu, I. A. Popov, N. V. Tkachenko, Z.-C. Wang, A. Muñoz-Castro, A. I. Boldyrev, Z.-M. Sun, Angew. Chem. Int. Ed. 2020, 59, 17286.