Ba₂Sb₄GeS₁₀

The title quaternary compound, dibarium tetra­anti­mony germanium deca­sulfide, Ba₂Sb₄GeS₁₀, crystallizes in a novel three-dimensional _∞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 _∞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.