BaYSnSbO6 crystallizes in the tetragonal P-4n2 space group. Ba(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Y(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. Y(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-22°. Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Y(1)O6 octahedra and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-22°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted square co-planar geometry to two equivalent Ba(1), one Y(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Y(1), one Sn(1), and one Sb(1) atom.
BaYSnSbO6 crystallizes in the tetragonal P-4n2 space group. Ba(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Y(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. All Ba(1)-O(1) bond lengths are 2.96 Å. There are four shorter (2.81 Å) and four longer (3.21 Å) Ba(1)-O(2) bond lengths. Y(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-22°. Both Y(1)-O(1) bond lengths are 2.24 Å. All Y(1)-O(2) bond lengths are 2.25 Å. Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. All Sn(1)-O(2) bond lengths are 2.65 Å. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Y(1)O6 octahedra and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-22°. Both Sb(1)-O(1) bond lengths are 2.02 Å. All Sb(1)-O(2) bond lengths are 2.01 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted square co-planar geometry to two equivalent Ba(1), one Y(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Y(1), one Sn(1), and one Sb(1) atom.