MgTe2O5 crystallizes in the orthorhombic Pbcn space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(2) atoms to form distorted edge-sharing MgO6 octahedra. Te(1) is bonded in a distorted see-saw-like geometry to one O(1), 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 bent 120 degrees geometry to two equivalent Te(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Mg(1) and one Te(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mg(1) and two equivalent Te(1) atoms.
MgTe2O5 crystallizes in the orthorhombic Pbcn space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(2) atoms to form distorted edge-sharing MgO6 octahedra. Both Mg(1)-O(3) bond lengths are 2.13 Å. There are two shorter (2.08 Å) and two longer (2.10 Å) Mg(1)-O(2) bond lengths. Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(2), and two equivalent O(3) atoms. The Te(1)-O(1) bond length is 2.00 Å. The Te(1)-O(2) bond length is 1.86 Å. There is one shorter (1.87 Å) and one longer (2.37 Å) Te(1)-O(3) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Te(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Mg(1) and one Te(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mg(1) and two equivalent Te(1) atoms.