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Updated: Jun 23, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
Published on: February 11, 2012
GeTe(2)O(6), a germanium tellurate(IV) with an open framework
Nefla Jennene Boukharrata1, Philippe Thomas, Jean-Paul Laval
1Science des Procédés Céramiques et de Traitements de Surface, UMR-CNRS 6638, Université de Limoges, Faculté des Sciences et Techniques, 123 Avenue A. Thomas, Limoges 87060, France.
Abstract:
The structure of an already evidenced but still uncharacterized GeTe(2)O(6) phase consists of isolated GeO(6) octahedra connected via isolated TeO(3) units. The germanium cations occupy a site with 1 symmetry. The Te and O atoms are in general positions of the P2(1)/n space group. This structure corresponds to a new type of tetravalent tellurate and is different from other AB(2)X(6) structures in which the B cation presents a stereochemically active electronic lone pair. It derives from the pseudo-hexagonal MI(2)O(6) (M = Mg, Mn, Co and Fe) type by a strong monoclinic distortion caused by the much smaller size of Ge(4+) compared with the divalent M cations.
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