Polyanionic hexagons: X 6 n- (X = Si, Ge)

Research output: Contribution to journalReview articlepeer-review

6 Citations (Scopus)


The paper reviews the polyanionic hexagons of silicon and germanium, focusing on aromaticity. The chair-like structures of hexasila- and hexagermabenzene are similar to a nonaromatic cyclohexane (CH 2) 6 and dissimilar to aromatic D 6h-symmetric benzene (CH) 6, although silicon and germanium are in the same group of the periodic table as carbon. Recently, six-membered silicon and germanium rings with extra electrons instead of conventional substituents, such as alkyl, aryl, etc., were calculated by us to have D 6h symmetry and to be aromatic. We summarize here our main findings and the background needed to reach them, and propose a synthetically accessible molecule.

Original languageEnglish
Pages (from-to)1745-1762
Number of pages18
Issue number4
Publication statusPublished - 2010 Dec


  • Aromaticity
  • Density-functional-theory calculations
  • Germanium clusters
  • Silicon clusters
  • Wade's rule
  • Zintl phases


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