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I(8)Sb(10)Ge(36).

ABSTRACT: Single crystals of the title compound, octa-iodide deca-anti-monate hexa-tria-conta-germanide, were grown by chemical transport reactions. The structure is isotypic with the analogous clathrates-I. In this structure, the (Ge,Sb)(46) framework consists of statistically occupied Ge and Sb sites that atoms form bonds in a distorted tetra-hedral arrangement. They form polyhedra that are covalently bonded to each other by shared faces. There are two polyhedra of different sizes, viz. a (Ge,Sb)(20) dodeca-hedron and a (Ge,Sb)(24) tetra-cosa-hedron in a 1:3 ratio. The guest atom (iodine) resides inside these polyhedra with symmetry m3 (Wyckoff position 2a) and 2m (Wyckoff position 2d), respectively.

SUBMITTER: Kars M

PROVIDER: S-EPMC2979373 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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I(8)Sb(10)Ge(36).

Kars Mohammed M Roisnel Thierry T Dorcet Vincent V Rebbah Allaoua A Otero-Diáz L Carlos LC

Acta crystallographica. Section E, Structure reports online 20100519 Pt 6

Single crystals of the title compound, octa-iodide deca-anti-monate hexa-tria-conta-germanide, were grown by chemical transport reactions. The structure is isotypic with the analogous clathrates-I. In this structure, the (Ge,Sb)(46) framework consists of statistically occupied Ge and Sb sites that atoms form bonds in a distorted tetra-hedral arrangement. They form polyhedra that are covalently bonded to each other by shared faces. There are two polyhedra of different sizes, viz. a (Ge,Sb)(20) do ...[more]

PMID: 21579265

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