MgTi2(SnO3)2 crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent Sn(1) and six equivalent O(1) atoms to form distorted MgSn6O6 cuboctahedra that share corners with six equivalent Ti(1)O6 octahedra, edges with six equivalent Mg(1)Sn6O6 cuboctahedra, and faces with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 44°. Ti(1) is bonded to six equivalent O(1) atoms to form TiO6 octahedra that share corners with three equivalent Mg(1)Sn6O6 cuboctahedra, edges with three equivalent Ti(1)O6 octahedra, and  a faceface with one Mg(1)Sn6O6 cuboctahedra. Sn(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent O(1) atoms. O(1) is bonded in a 3-coordinate geometry to one Mg(1), two equivalent Ti(1), and one Sn(1) atom.
MgTi2(SnO3)2 crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent Sn(1) and six equivalent O(1) atoms to form distorted MgSn6O6 cuboctahedra that share corners with six equivalent Ti(1)O6 octahedra, edges with six equivalent Mg(1)Sn6O6 cuboctahedra, and faces with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 44°. All Mg(1)-Sn(1) bond lengths are 3.18 Å. All Mg(1)-O(1) bond lengths are 2.83 Å. Ti(1) is bonded to six equivalent O(1) atoms to form TiO6 octahedra that share corners with three equivalent Mg(1)Sn6O6 cuboctahedra, edges with three equivalent Ti(1)O6 octahedra, and  a faceface with one Mg(1)Sn6O6 cuboctahedra. There are three shorter (1.95 Å) and three longer (2.03 Å) Ti(1)-O(1) bond lengths. Sn(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent O(1) atoms. All Sn(1)-O(1) bond lengths are 2.19 Å. O(1) is bonded in a 3-coordinate geometry to one Mg(1), two equivalent Ti(1), and one Sn(1) atom.