Beschreibung:
<jats:p>New investigations combining single crystal‐ and synchrotron‐based powder X‐ray diffraction data revealed that Ba[Au<jats:sub>2</jats:sub>SnS<jats:sub>4</jats:sub>] crystallizes in the orthorhombic crystal system in space group C<jats:italic>222</jats:italic><jats:sub>1</jats:sub> instead of <jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>2<jats:sub>1</jats:sub>2 as reported earlier. While the principle crystal structure is not altered, there are significant differences of the interatomic distances Au‐S and Sn‐S. A salient property of this crystal structure is the partial framework composed of AuS<jats:sub>2</jats:sub> dumbbells and SnS<jats:sub>4</jats:sub> tetrahedra to form chains [(Au<jats:sub>2</jats:sub>SnS<jats:sub>4</jats:sub>)<jats:sup>2–</jats:sup>]<jats:sub>∞</jats:sub> propagating in the [100] direction. Within the chains a short Au<jats:bold>···</jats:bold>Au separation of 2.9538(13) Å is observed, while the interchain Au<jats:bold>···</jats:bold>Au separation is longer at 3.383 Å. The Ba<jats:sup>2+</jats:sup> cation is eightfold coordinated by S<jats:sup>2–</jats:sup> anions in a distorted bicapped trigonal prismatic environment BaS<jats:sub>8</jats:sub>. These polyhedra share all S<jats:sup>2–</jats:sup> anions thus generating a three‐dimensional network. This connection Scheme generates voids along [100] hosting [(Au<jats:sub>2</jats:sub>SnS<jats:sub>4</jats:sub>)<jats:sup>2–</jats:sup>]<jats:sub>∞</jats:sub> chains. In addition, the compound has been shown to be luminescent at the blue‐green spectral range with emission maximum at approximately 21000 cm<jats:sup>–1</jats:sup>.</jats:p>