MgTi(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form MgO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra and corners with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-68°. Ti(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and edges with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mg(1), one Ti(1), and one W(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Ti(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Ti(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Ti(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Ti(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Ti(1), one W(1), and one W(2) atom.
MgTi(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form MgO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra and corners with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-68°. The Mg(1)-O(1) bond length is 1.96 Å. The Mg(1)-O(2) bond length is 2.01 Å. The Mg(1)-O(4) bond length is 2.06 Å. The Mg(1)-O(6) bond length is 1.97 Å. Ti(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. The Ti(1)-O(2) bond length is 2.01 Å. The Ti(1)-O(3) bond length is 2.08 Å. The Ti(1)-O(4) bond length is 2.14 Å. The Ti(1)-O(5) bond length is 1.84 Å. The Ti(1)-O(7) bond length is 2.01 Å. The Ti(1)-O(8) bond length is 1.96 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. The W(1)-O(1) bond length is 1.79 Å. The W(1)-O(2) bond length is 2.01 Å. The W(1)-O(3) bond length is 2.08 Å. The W(1)-O(4) bond length is 2.30 Å. The W(1)-O(7) bond length is 2.04 Å. The W(1)-O(8) bond length is 2.07 Å. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and edges with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. The W(2)-O(3) bond length is 2.03 Å. The W(2)-O(4) bond length is 2.12 Å. The W(2)-O(5) bond length is 1.99 Å. The W(2)-O(6) bond length is 1.80 Å. The W(2)-O(7) bond length is 2.10 Å. The W(2)-O(8) bond length is 2.17 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mg(1), one Ti(1), and one W(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Ti(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Ti(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Ti(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Ti(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Ti(1), one W(1), and one W(2) atom.