MgTe(WO4)3 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(11), one O(3), one O(7), and one O(8) atom. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent W(3)O6 octahedra and corners with four equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-48°. In the second W site, W(2) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with four equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-41°. In the third W site, W(3) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(8) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 23-40°. Te(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(9) atom to form distorted TeO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-48°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one Te(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(2), and one W(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one W(2) and one Te(1) atom. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one W(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Te(1) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one W(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one W(1), and one W(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(1) and one Te(1) atom.
MgTe(WO4)3 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(11), one O(3), one O(7), and one O(8) atom. The Mg(1)-O(1) bond length is 1.97 Å. The Mg(1)-O(10) bond length is 2.39 Å. The Mg(1)-O(11) bond length is 2.04 Å. The Mg(1)-O(3) bond length is 2.13 Å. The Mg(1)-O(7) bond length is 2.13 Å. The Mg(1)-O(8) bond length is 2.18 Å. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent W(3)O6 octahedra and corners with four equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-48°. The W(1)-O(1) bond length is 1.88 Å. The W(1)-O(11) bond length is 1.99 Å. The W(1)-O(12) bond length is 1.96 Å. The W(1)-O(2) bond length is 2.17 Å. The W(1)-O(4) bond length is 2.02 Å. The W(1)-O(9) bond length is 1.79 Å. In the second W site, W(2) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with four equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-41°. The W(2)-O(10) bond length is 2.12 Å. The W(2)-O(3) bond length is 1.93 Å. The W(2)-O(5) bond length is 1.88 Å. The W(2)-O(6) bond length is 1.78 Å. The W(2)-O(7) bond length is 2.01 Å. The W(2)-O(8) bond length is 2.14 Å. In the third W site, W(3) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(8) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 23-40°. The W(3)-O(10) bond length is 1.88 Å. The W(3)-O(11) bond length is 2.10 Å. The W(3)-O(2) bond length is 1.83 Å. The W(3)-O(3) bond length is 2.13 Å. The W(3)-O(5) bond length is 2.03 Å. The W(3)-O(8) bond length is 1.89 Å. Te(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(9) atom to form distorted TeO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-48°. The Te(1)-O(1) bond length is 2.40 Å. The Te(1)-O(12) bond length is 1.96 Å. The Te(1)-O(4) bond length is 1.92 Å. The Te(1)-O(6) bond length is 2.40 Å. The Te(1)-O(7) bond length is 2.02 Å. The Te(1)-O(9) bond length is 2.46 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one Te(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(2), and one W(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one W(2) and one Te(1) atom. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one W(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Te(1) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one W(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one W(1), and one W(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(1) and one Te(1) atom.