Mg2WMoO6 is Corundum-derived structured and crystallizes in the trigonal R3 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted MgO6 pentagonal pyramids that share corners with three equivalent W(1)O6 octahedra, corners with six equivalent Mg(2)O6 octahedra, edges with three equivalent Mo(1)O6 octahedra, and  a faceface with one W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-58°. In the second Mg site, Mg(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted MgO6 octahedra that share corners with three equivalent Mo(1)O6 octahedra, corners with six equivalent Mg(1)O6 pentagonal pyramids, edges with three equivalent W(1)O6 octahedra, and  a faceface with one Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles are 64°. W(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form WO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra, corners with three equivalent Mg(1)O6 pentagonal pyramids, edges with three equivalent Mg(2)O6 octahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 44°. Mo(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MoO6 octahedra that share corners with three equivalent Mg(2)O6 octahedra, corners with six equivalent W(1)O6 octahedra, edges with three equivalent Mg(1)O6 pentagonal pyramids, and  a faceface with one Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-64°. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mg(2), one W(1), and one Mo(1) atom to form a mixture of distorted corner and edge-sharing OMg2MoW trigonal pyramids. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mg(2), one W(1), and one Mo(1) atom.
Mg2WMoO6 is Corundum-derived structured and crystallizes in the trigonal R3 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted MgO6 pentagonal pyramids that share corners with three equivalent W(1)O6 octahedra, corners with six equivalent Mg(2)O6 octahedra, edges with three equivalent Mo(1)O6 octahedra, and  a faceface with one W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-58°. All Mg(1)-O(1) bond lengths are 2.24 Å. All Mg(1)-O(2) bond lengths are 2.06 Å. In the second Mg site, Mg(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted MgO6 octahedra that share corners with three equivalent Mo(1)O6 octahedra, corners with six equivalent Mg(1)O6 pentagonal pyramids, edges with three equivalent W(1)O6 octahedra, and  a faceface with one Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles are 64°. All Mg(2)-O(1) bond lengths are 2.05 Å. All Mg(2)-O(2) bond lengths are 2.28 Å. W(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form WO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra, corners with three equivalent Mg(1)O6 pentagonal pyramids, edges with three equivalent Mg(2)O6 octahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 44°. All W(1)-O(1) bond lengths are 2.04 Å. All W(1)-O(2) bond lengths are 2.01 Å. Mo(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MoO6 octahedra that share corners with three equivalent Mg(2)O6 octahedra, corners with six equivalent W(1)O6 octahedra, edges with three equivalent Mg(1)O6 pentagonal pyramids, and  a faceface with one Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-64°. All Mo(1)-O(1) bond lengths are 2.13 Å. All Mo(1)-O(2) bond lengths are 2.18 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mg(2), one W(1), and one Mo(1) atom to form a mixture of distorted corner and edge-sharing OMg2MoW trigonal pyramids. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mg(2), one W(1), and one Mo(1) atom.