MgCd2(WO4)2 is beta indium sulfide-derived structured and crystallizes in the monoclinic P2 space group. Mg(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted MgO6 octahedra that share corners with four equivalent W(1)O6 octahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, and faces with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-48°. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra, corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-59°. In the second W site, W(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-58°. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-58°. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted CdO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-59°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one W(1), one Cd(1), and one Cd(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one W(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded to one Mg(1), one W(1), one W(2), and one Cd(1) atom to form distorted corner-sharing OMgCdW2 trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cd(2) atom.
MgCd2(WO4)2 is beta indium sulfide-derived structured and crystallizes in the monoclinic P2 space group. Mg(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted MgO6 octahedra that share corners with four equivalent W(1)O6 octahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, and faces with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-48°. Both Mg(1)-O(2) bond lengths are 2.14 Å. Both Mg(1)-O(3) bond lengths are 2.07 Å. Both Mg(1)-O(4) bond lengths are 2.14 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra, corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-59°. Both W(1)-O(1) bond lengths are 1.92 Å. Both W(1)-O(3) bond lengths are 2.20 Å. Both W(1)-O(4) bond lengths are 2.05 Å. In the second W site, W(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-58°. Both W(2)-O(2) bond lengths are 1.94 Å. Both W(2)-O(3) bond lengths are 2.00 Å. Both W(2)-O(4) bond lengths are 2.14 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-58°. Both Cd(1)-O(1) bond lengths are 2.36 Å. Both Cd(1)-O(2) bond lengths are 2.22 Å. Both Cd(1)-O(3) bond lengths are 2.57 Å. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted CdO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-59°. Both Cd(2)-O(1) bond lengths are 2.24 Å. Both Cd(2)-O(2) bond lengths are 2.37 Å. Both Cd(2)-O(4) bond lengths are 2.55 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one W(1), one Cd(1), and one Cd(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one W(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded to one Mg(1), one W(1), one W(2), and one Cd(1) atom to form distorted corner-sharing OMgCdW2 trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cd(2) atom.