Cd2Sb2O7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to two equivalent O(3) and four equivalent O(1) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 43-45°. In the second Sb site, Sb(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(2), one Sb(1), and one Sb(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Sb(1) atoms. In the third O site, O(3) is bonded to one Cd(2), two equivalent Cd(1), and one Sb(2) atom to form a mixture of corner and edge-sharing OCd3Sb tetrahedra.
Cd2Sb2O7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. All Cd(1)-O(1) bond lengths are 2.70 Å. All Cd(1)-O(3) bond lengths are 2.40 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to two equivalent O(3) and four equivalent O(1) atoms. Both Cd(2)-O(3) bond lengths are 2.19 Å. All Cd(2)-O(1) bond lengths are 2.49 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 43-45°. Both Sb(1)-O(2) bond lengths are 1.95 Å. All Sb(1)-O(1) bond lengths are 1.96 Å. In the second Sb site, Sb(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles are 45°. Both Sb(2)-O(3) bond lengths are 2.01 Å. All Sb(2)-O(1) bond lengths are 1.98 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(2), one Sb(1), and one Sb(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Sb(1) atoms. In the third O site, O(3) is bonded to one Cd(2), two equivalent Cd(1), and one Sb(2) atom to form a mixture of corner and edge-sharing OCd3Sb tetrahedra.