TaTl3(SeS)2 crystallizes in the orthorhombic Fmm2 space group. The structure consists of a TaTl3(SeS)2 framework. Ta(1) is bonded in a tetrahedral geometry to two equivalent Se(1) and two equivalent S(1) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 4-coordinate geometry to two equivalent Se(1) and two equivalent S(1) atoms. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent Se(1) and two equivalent S(1) atoms. Se(1) is bonded to one Ta(1), one Tl(2), and two equivalent Tl(1) atoms to form a mixture of distorted corner and edge-sharing SeTaTl3 trigonal pyramids. S(1) is bonded in a single-bond geometry to one Ta(1), one Tl(2), and two equivalent Tl(1) atoms.
TaTl3(SeS)2 crystallizes in the orthorhombic Fmm2 space group. The structure consists of a TaTl3(SeS)2 framework. Ta(1) is bonded in a tetrahedral geometry to two equivalent Se(1) and two equivalent S(1) atoms. Both Ta(1)-Se(1) bond lengths are 2.44 Å. Both Ta(1)-S(1) bond lengths are 2.28 Å. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 4-coordinate geometry to two equivalent Se(1) and two equivalent S(1) atoms. Both Tl(1)-Se(1) bond lengths are 3.26 Å. Both Tl(1)-S(1) bond lengths are 3.25 Å. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent Se(1) and two equivalent S(1) atoms. Both Tl(2)-Se(1) bond lengths are 3.28 Å. Both Tl(2)-S(1) bond lengths are 3.23 Å. Se(1) is bonded to one Ta(1), one Tl(2), and two equivalent Tl(1) atoms to form a mixture of distorted corner and edge-sharing SeTaTl3 trigonal pyramids. S(1) is bonded in a single-bond geometry to one Ta(1), one Tl(2), and two equivalent Tl(1) atoms.