RbHgSbTe3 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent Hg(1), two equivalent Te(3), three equivalent Te(1), and three equivalent Te(2) atoms. Hg(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), one Te(1), one Te(2), and two equivalent Te(3) atoms. Sb(1) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of distorted corner and edge-sharing SbTe6 octahedra. The corner-sharing octahedral tilt angles are 39°. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent Rb(1), one Hg(1), and two equivalent Sb(1) atoms to form a mixture of distorted corner, edge, and face-sharing TeRb3HgSb2 octahedra. The corner-sharing octahedral tilt angles are 37°. In the second Te site, Te(2) is bonded to three equivalent Rb(1), one Hg(1), and two equivalent Sb(1) atoms to form a mixture of distorted corner, edge, and face-sharing TeRb3HgSb2 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 6-59°. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Hg(1), and two equivalent Sb(1) atoms.
RbHgSbTe3 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent Hg(1), two equivalent Te(3), three equivalent Te(1), and three equivalent Te(2) atoms. Both Rb(1)-Hg(1) bond lengths are 3.96 Å. Both Rb(1)-Te(3) bond lengths are 3.76 Å. There are two shorter (3.90 Å) and one longer (3.91 Å) Rb(1)-Te(1) bond length. There are two shorter (3.95 Å) and one longer (4.09 Å) Rb(1)-Te(2) bond length. Hg(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), one Te(1), one Te(2), and two equivalent Te(3) atoms. The Hg(1)-Te(1) bond length is 2.82 Å. The Hg(1)-Te(2) bond length is 2.84 Å. Both Hg(1)-Te(3) bond lengths are 2.96 Å. Sb(1) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of distorted corner and edge-sharing SbTe6 octahedra. The corner-sharing octahedral tilt angles are 39°. Both Sb(1)-Te(1) bond lengths are 3.12 Å. Both Sb(1)-Te(2) bond lengths are 3.17 Å. There is one shorter (2.91 Å) and one longer (3.47 Å) Sb(1)-Te(3) bond length. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent Rb(1), one Hg(1), and two equivalent Sb(1) atoms to form a mixture of distorted corner, edge, and face-sharing TeRb3HgSb2 octahedra. The corner-sharing octahedral tilt angles are 37°. In the second Te site, Te(2) is bonded to three equivalent Rb(1), one Hg(1), and two equivalent Sb(1) atoms to form a mixture of distorted corner, edge, and face-sharing TeRb3HgSb2 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 6-59°. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Hg(1), and two equivalent Sb(1) atoms.