MgPb2(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra and edges with two equivalent W(2)O6 octahedra. In the second W site, W(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(5), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(4), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one Pb(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Pb(1) 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 see-saw-like geometry to one Mg(1), one W(2), one Pb(1), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Pb(2) atom.
MgPb2(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. The Mg(1)-O(1) bond length is 1.95 Å. The Mg(1)-O(2) bond length is 1.99 Å. The Mg(1)-O(6) bond length is 1.94 Å. The Mg(1)-O(7) bond length is 2.10 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra and edges with two equivalent W(2)O6 octahedra. The W(1)-O(1) bond length is 1.83 Å. The W(1)-O(2) bond length is 2.25 Å. The W(1)-O(3) bond length is 2.02 Å. The W(1)-O(4) bond length is 2.04 Å. The W(1)-O(5) bond length is 2.04 Å. The W(1)-O(8) bond length is 2.09 Å. In the second W site, W(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The W(2)-O(2) bond length is 2.07 Å. The W(2)-O(3) bond length is 2.01 Å. The W(2)-O(5) bond length is 2.06 Å. The W(2)-O(6) bond length is 1.86 Å. The W(2)-O(7) bond length is 2.12 Å. The W(2)-O(8) bond length is 2.06 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(5), and one O(7) atom. The Pb(1)-O(2) bond length is 2.58 Å. The Pb(1)-O(4) bond length is 2.25 Å. The Pb(1)-O(5) bond length is 2.31 Å. The Pb(1)-O(7) bond length is 2.46 Å. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(4), one O(7), and one O(8) atom. The Pb(2)-O(4) bond length is 2.27 Å. The Pb(2)-O(7) bond length is 2.28 Å. The Pb(2)-O(8) bond length is 2.34 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one Pb(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Pb(1) 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 see-saw-like geometry to one Mg(1), one W(2), one Pb(1), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Pb(2) atom.