Rb2Li(SbO2)2 crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Li(1) is bonded in a bent 150 degrees geometry to two equivalent O(1) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a water-like geometry to two equivalent O(2) atoms. In the second Sb site, Sb(2) is bonded in a distorted see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(2), two equivalent Rb(1), one Li(1), and one Sb(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Rb(2), one Sb(1), and one Sb(2) atom.
Rb2Li(SbO2)2 crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. There are two shorter (2.90 Å) and two longer (3.06 Å) Rb(1)-O(1) bond lengths. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Both Rb(2)-O(1) bond lengths are 2.82 Å. There are two shorter (3.10 Å) and two longer (3.15 Å) Rb(2)-O(2) bond lengths. Li(1) is bonded in a bent 150 degrees geometry to two equivalent O(1) atoms. Both Li(1)-O(1) bond lengths are 1.93 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a water-like geometry to two equivalent O(2) atoms. Both Sb(1)-O(2) bond lengths are 1.97 Å. In the second Sb site, Sb(2) is bonded in a distorted see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Sb(2)-O(1) bond lengths are 1.97 Å. Both Sb(2)-O(2) bond lengths are 2.23 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(2), two equivalent Rb(1), one Li(1), and one Sb(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Rb(2), one Sb(1), and one Sb(2) atom.