Mg2Sb2O5 crystallizes in the orthorhombic Pbam space group. Mg(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing MgO5 square pyramids. Sb(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a square co-planar geometry to four equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mg(1) and one Sb(1) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mg(1) and two equivalent Sb(1) atoms.
Mg2Sb2O5 crystallizes in the orthorhombic Pbam space group. Mg(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing MgO5 square pyramids. The Mg(1)-O(3) bond length is 2.01 Å. Both Mg(1)-O(1) bond lengths are 2.13 Å. Both Mg(1)-O(2) bond lengths are 2.05 Å. Sb(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(3) atoms. The Sb(1)-O(2) bond length is 1.93 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 square co-planar geometry to four equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mg(1) and one Sb(1) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mg(1) and two equivalent Sb(1) atoms.