Introducing Tetrel Zintl Ions to N-Heterocyclic Carbenes – Synthesis of Coinage Metal NHC Complexes of [Ge9{Si(SiMe3)3}3]–

Felix S. Geitner, Thomas F. Fässler

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

Reaction of the functionalized tetrel cluster [Ge9R3]{R = Si(SiMe3)3} with coinage metal N-heterocyclic carbene (NHC) complexes affords the first Zintl cluster transition metal complexes coordinated by NHC molecules. In [(η3-Ge9R3)M(NHCDipp)], the D3d-symmetric cluster polyhedron coordinates with a triangular Ge3face to the coinage metals M = Cu, Ag, Au, which themselves also bind to the NHC. The role of fine tuning of electronic properties by using an NHC ligand is discussed for the transformation reaction of [(η3-Ge9R3)Ag(NHCDipp)] to yield [Ag(η3-Ge9R3)2][Ag(NHCDipp)2]. All complexes are fully characterized including single-crystal X-ray structure analyses.

Original languageEnglish
Pages (from-to)2688-2691
Number of pages4
JournalEuropean Journal of Inorganic Chemistry
Volume2016
Issue number17
DOIs
StatePublished - Jun 2016

Keywords

  • Cluster compounds
  • Coinage metals
  • NHC complexes
  • Zintl anions

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