BaDySnSbO6 crystallizes in the orthorhombic Pnnn space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form BaO12 cuboctahedra that share faces with four equivalent Dy(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. Dy(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form DyO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 15-22°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. In the second Sn site, Sn(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Dy(1)O6 octahedra and faces with two equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 15-22°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Dy(1), one Sn(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Dy(1), one Sn(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Ba(1), one Ba(2), one Dy(1), and one Sb(1) atom.
BaDySnSbO6 crystallizes in the orthorhombic Pnnn space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form BaO12 cuboctahedra that share faces with four equivalent Dy(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. All Ba(1)-O(1) bond lengths are 2.92 Å. All Ba(1)-O(2) bond lengths are 3.08 Å. All Ba(1)-O(3) bond lengths are 2.95 Å. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. All Ba(2)-O(2) bond lengths are 2.94 Å. All Ba(2)-O(3) bond lengths are 2.72 Å. Dy(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form DyO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 15-22°. Both Dy(1)-O(1) bond lengths are 2.27 Å. Both Dy(1)-O(2) bond lengths are 2.27 Å. Both Dy(1)-O(3) bond lengths are 2.23 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. All Sn(1)-O(2) bond lengths are 2.60 Å. In the second Sn site, Sn(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Sn(2)-O(1) bond lengths are 2.59 Å. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Dy(1)O6 octahedra and faces with two equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 15-22°. Both Sb(1)-O(1) bond lengths are 2.03 Å. Both Sb(1)-O(2) bond lengths are 2.03 Å. Both Sb(1)-O(3) bond lengths are 2.01 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Dy(1), one Sn(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Dy(1), one Sn(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Ba(1), one Ba(2), one Dy(1), and one Sb(1) atom.