Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)


inorganic compounds



Acta Cryst. (2013). E69, i24    [ doi:10.1107/S1600536813007988 ]

Ba2Sb4GeS10

L. Geng

Abstract: The title quaternary compound, dibarium tetraantimony germanium decasulfide, Ba2Sb4GeS10, crystallizes in a novel three-dimensional [infinity]3[Sb4GeS10]4- network structure, which is composed of triangular pyramidal SbS3 (site symmetry m..), distorted SbS5 (m..) polyhedra and regular GeS4 (-4..) tetrahedra. The SbS3 and SbS5 units are connected with each other through corner- and edge-sharing, forming a Sb4S10 layer in the ab plane. The GeS4 tetrahedra further bridge two neighbouring Sb4S10 layers, forming a three-dimensional [infinity]3[Sb4GeS10]4- network. The Ba2+ cation (..2) is located between two Sb4S10 layers and is coordinated by ten S atoms with Ba-S bond lengths in the range 3.2505 (9)-3.4121 (2) Å.


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