RbCuTeS3 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent S(2), three equivalent S(1), and three equivalent S(3) atoms. Cu(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form corner-sharing CuS4 tetrahedra. Te(1) is bonded in a distorted trigonal non-coplanar geometry to one S(1), one S(2), and one S(3) atom. There are three inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to three equivalent Rb(1), one Cu(1), and one Te(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Cu(1), and one Te(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to three equivalent Rb(1), one Cu(1), and one Te(1) atom.
RbCuTeS3 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent S(2), three equivalent S(1), and three equivalent S(3) atoms. There is one shorter (3.38 Å) and one longer (3.39 Å) Rb(1)-S(2) bond length. There are a spread of Rb(1)-S(1) bond distances ranging from 3.43-3.83 Å. There are a spread of Rb(1)-S(3) bond distances ranging from 3.42-3.60 Å. Cu(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form corner-sharing CuS4 tetrahedra. The Cu(1)-S(1) bond length is 2.33 Å. The Cu(1)-S(3) bond length is 2.33 Å. There is one shorter (2.47 Å) and one longer (2.49 Å) Cu(1)-S(2) bond length. Te(1) is bonded in a distorted trigonal non-coplanar geometry to one S(1), one S(2), and one S(3) atom. The Te(1)-S(1) bond length is 2.40 Å. The Te(1)-S(2) bond length is 2.44 Å. The Te(1)-S(3) bond length is 2.41 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to three equivalent Rb(1), one Cu(1), and one Te(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Cu(1), and one Te(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to three equivalent Rb(1), one Cu(1), and one Te(1) atom.