Rb12Sn2Sb6O crystallizes in the trigonal P-3m1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 14-coordinate geometry to two equivalent Rb(2), four equivalent Rb(1), two equivalent Sn(1), and six equivalent Sb(1) atoms. In the second Rb site, Rb(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), four equivalent Sb(1), and one O(1) atom. Sn(1) is bonded in a distorted trigonal planar geometry to six equivalent Rb(1) and three equivalent Sb(1) atoms. Sb(1) is bonded in a 11-coordinate geometry to four equivalent Rb(2), six equivalent Rb(1), and one Sn(1) atom. O(1) is bonded in an octahedral geometry to six equivalent Rb(2) atoms.
Rb12Sn2Sb6O crystallizes in the trigonal P-3m1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 14-coordinate geometry to two equivalent Rb(2), four equivalent Rb(1), two equivalent Sn(1), and six equivalent Sb(1) atoms. Both Rb(1)-Rb(2) bond lengths are 4.19 Å. There are a spread of Rb(1)-Rb(1) bond distances ranging from 3.74-4.56 Å. There is one shorter (4.12 Å) and one longer (4.13 Å) Rb(1)-Sn(1) bond length. There are a spread of Rb(1)-Sb(1) bond distances ranging from 4.03-4.18 Å. In the second Rb site, Rb(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), four equivalent Sb(1), and one O(1) atom. There is one shorter (3.69 Å) and three longer (3.91 Å) Rb(2)-Sb(1) bond lengths. The Rb(2)-O(1) bond length is 2.82 Å. Sn(1) is bonded in a distorted trigonal planar geometry to six equivalent Rb(1) and three equivalent Sb(1) atoms. All Sn(1)-Sb(1) bond lengths are 2.75 Å. Sb(1) is bonded in a 11-coordinate geometry to four equivalent Rb(2), six equivalent Rb(1), and one Sn(1) atom. O(1) is bonded in an octahedral geometry to six equivalent Rb(2) atoms.