CsAuUTe3 crystallizes in the orthorhombic Cmcm space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Te(1) and six equivalent Te(2) atoms. U(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form distorted UTe6 octahedra that share corners with two equivalent U(1)Te6 octahedra, edges with two equivalent U(1)Te6 octahedra, and edges with four equivalent Au(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. Au(1) is bonded to two equivalent Te(1) and two equivalent Te(2) atoms to form distorted AuTe4 tetrahedra that share corners with two equivalent Au(1)Te4 tetrahedra and edges with four equivalent U(1)Te6 octahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent U(1), and two equivalent Au(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), two equivalent U(1), and one Au(1) atom.
CsAuUTe3 crystallizes in the orthorhombic Cmcm space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Te(1) and six equivalent Te(2) atoms. Both Cs(1)-Te(1) bond lengths are 3.92 Å. There are four shorter (3.92 Å) and two longer (4.04 Å) Cs(1)-Te(2) bond lengths. U(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form distorted UTe6 octahedra that share corners with two equivalent U(1)Te6 octahedra, edges with two equivalent U(1)Te6 octahedra, and edges with four equivalent Au(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. Both U(1)-Te(1) bond lengths are 3.06 Å. All U(1)-Te(2) bond lengths are 3.10 Å. Au(1) is bonded to two equivalent Te(1) and two equivalent Te(2) atoms to form distorted AuTe4 tetrahedra that share corners with two equivalent Au(1)Te4 tetrahedra and edges with four equivalent U(1)Te6 octahedra. Both Au(1)-Te(1) bond lengths are 2.84 Å. Both Au(1)-Te(2) bond lengths are 2.75 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent U(1), and two equivalent Au(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), two equivalent U(1), and one Au(1) atom.