Rb4TlSbCl12 crystallizes in the tetragonal P4/mmm space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), and four equivalent Cl(4) atoms. Tl(1) is bonded in an octahedral geometry to two equivalent Cl(1) and four equivalent Cl(4) atoms. Sb(1) is bonded in an octahedral geometry to two equivalent Cl(2) and four Cl(3,3) atoms. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one Tl(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one Sb(1) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one Sb(1) atom. In the fourth Cl site, Cl(4) is bonded to four equivalent Rb(1) and one Tl(1) atom to form a mixture of face, corner, and edge-sharing ClRb4Tl square pyramids. In the fifth Cl site, Cl(3) is bonded in a single-bond geometry to one Sb(1) atom.
Rb4TlSbCl12 crystallizes in the tetragonal P4/mmm space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), and four equivalent Cl(4) atoms. Both Rb(1)-Cl(1) bond lengths are 3.77 Å. Both Rb(1)-Cl(2) bond lengths are 3.79 Å. All Rb(1)-Cl(4) bond lengths are 3.46 Å. Tl(1) is bonded in an octahedral geometry to two equivalent Cl(1) and four equivalent Cl(4) atoms. Both Tl(1)-Cl(1) bond lengths are 2.61 Å. All Tl(1)-Cl(4) bond lengths are 2.64 Å. Sb(1) is bonded in an octahedral geometry to two equivalent Cl(2) and four Cl(3,3) atoms. Both Sb(1)-Cl(2) bond lengths are 2.43 Å. All Sb(1)-Cl(3,3) bond lengths are 2.42 Å. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one Tl(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one Sb(1) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one Sb(1) atom. In the fourth Cl site, Cl(4) is bonded to four equivalent Rb(1) and one Tl(1) atom to form a mixture of face, corner, and edge-sharing ClRb4Tl square pyramids. In the fifth Cl site, Cl(3) is bonded in a single-bond geometry to one Sb(1) atom.