Mg3Sn is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Mg(1) is bonded to eight equivalent Mg(1) and four equivalent Sn(1) atoms to form distorted MgMg8Sn4 cuboctahedra that share corners with twelve equivalent Mg(1)Mg8Sn4 cuboctahedra, edges with eight equivalent Sn(1)Mg12 cuboctahedra, edges with sixteen equivalent Mg(1)Mg8Sn4 cuboctahedra, faces with four equivalent Sn(1)Mg12 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg8Sn4 cuboctahedra. Sn(1) is bonded to twelve equivalent Mg(1) atoms to form SnMg12 cuboctahedra that share corners with twelve equivalent Sn(1)Mg12 cuboctahedra, edges with twenty-four equivalent Mg(1)Mg8Sn4 cuboctahedra, faces with six equivalent Sn(1)Mg12 cuboctahedra, and faces with twelve equivalent Mg(1)Mg8Sn4 cuboctahedra.
Mg3Sn is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Mg(1) is bonded to eight equivalent Mg(1) and four equivalent Sn(1) atoms to form distorted MgMg8Sn4 cuboctahedra that share corners with twelve equivalent Mg(1)Mg8Sn4 cuboctahedra, edges with eight equivalent Sn(1)Mg12 cuboctahedra, edges with sixteen equivalent Mg(1)Mg8Sn4 cuboctahedra, faces with four equivalent Sn(1)Mg12 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg8Sn4 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.14 Å. All Mg(1)-Sn(1) bond lengths are 3.14 Å. Sn(1) is bonded to twelve equivalent Mg(1) atoms to form SnMg12 cuboctahedra that share corners with twelve equivalent Sn(1)Mg12 cuboctahedra, edges with twenty-four equivalent Mg(1)Mg8Sn4 cuboctahedra, faces with six equivalent Sn(1)Mg12 cuboctahedra, and faces with twelve equivalent Mg(1)Mg8Sn4 cuboctahedra.