Controlled cluster expansion at a Zintl cluster surface

Oliver P.E. Townrow, Andrew S. Weller*, Jose M. Goicoechea*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Reaction of the tris-hypersilyl nonagermanide Zintl cluster salt, K[Ge9(Hyp)3] (Hyp=Si(SiMe3)3) with [Rh(η22-L)Cl]2 (L=1,5-cyclooctadiene, COD; norbornadiene, NBD) afforded eleven- and twelve-vertex homo-multimetallic clusters by cluster core expansion. Using a stepwise procedure, starting from the Zintl cluster [Rh(COD){Ge9(Hyp)3}] and [Ir(COD)Cl]2, this methodology was expanded for the synthesis of eleven-vertex hetero-multimetallic clusters. A mechanism for the formation of these first examples of closo eleven-vertex Zintl clusters is proposed, informed by density functional theory calculations.

Original languageEnglish
Article numbere202316120
JournalAngewandte Chemie International Edition
Issue number3
Publication statusPublished - 15 Jan 2024

Bibliographical note

Funding Information:
We thank Shell Global Solutions International B.V., the University of Oxford and the EPSRC for financial support of this research (Industrial CASE studentship O.P.E.T.; EP/M024210 ASW). The University of Oxford is also acknowledged for access to Chemical Crystallography facilities.

Publisher Copyright:
© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.


  • Germanium
  • Iridium
  • Metal Alloys
  • Rhodium
  • Zintl Clusters

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