Mg(SnO2)2 is Spinel structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form MgO4 tetrahedra that share corners with six equivalent Sn(1)O6 octahedra and corners with six equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O4 tetrahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Sn(2)O6 octahedra. In the second Sn site, Sn(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O4 tetrahedra, edges with two equivalent Sn(2)O6 octahedra, and edges with four equivalent Sn(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sn(1), and two equivalent Sn(2) atoms.
Mg(SnO2)2 is Spinel structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form MgO4 tetrahedra that share corners with six equivalent Sn(1)O6 octahedra and corners with six equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. Both Mg(1)-O(1) bond lengths are 2.19 Å. Both Mg(1)-O(2) bond lengths are 2.02 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O4 tetrahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Sn(2)O6 octahedra. Both Sn(1)-O(2) bond lengths are 2.07 Å. All Sn(1)-O(1) bond lengths are 2.22 Å. In the second Sn site, Sn(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O4 tetrahedra, edges with two equivalent Sn(2)O6 octahedra, and edges with four equivalent Sn(1)O6 octahedra. Both Sn(2)-O(1) bond lengths are 2.46 Å. All Sn(2)-O(2) bond lengths are 2.41 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sn(1), and two equivalent Sn(2) atoms.