MgMo3Zn2O8 is Corundum-derived structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form MgO6 octahedra that share edges with two equivalent Mo(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form MoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. In the second Mo site, Mo(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(2)O6 octahedra. Zn(1) is bonded in a distorted rectangular 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 distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mo(2), and one Zn(1) atom. In the second O site, O(2) is bonded to one Mo(1), two equivalent Mo(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OZnMo3 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(1), one Mo(2), and one Zn(1) atom.
MgMo3Zn2O8 is Corundum-derived structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form MgO6 octahedra that share edges with two equivalent Mo(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. Both Mg(1)-O(1) bond lengths are 2.05 Å. All Mg(1)-O(3) bond lengths are 2.09 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form MoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. Both Mo(1)-O(2) bond lengths are 2.13 Å. All Mo(1)-O(3) bond lengths are 2.09 Å. In the second Mo site, Mo(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(2)O6 octahedra. Both Mo(2)-O(1) bond lengths are 2.16 Å. Both Mo(2)-O(2) bond lengths are 2.18 Å. Both Mo(2)-O(3) bond lengths are 2.21 Å. Zn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), and two equivalent O(3) atoms. The Zn(1)-O(1) bond length is 2.06 Å. The Zn(1)-O(2) bond length is 1.90 Å. Both Zn(1)-O(3) bond lengths are 2.22 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mo(2), and one Zn(1) atom. In the second O site, O(2) is bonded to one Mo(1), two equivalent Mo(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OZnMo3 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(1), one Mo(2), and one Zn(1) atom.