Mg3Ce 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 Ce(1) atoms to form MgCe4Mg8 cuboctahedra that share corners with twelve equivalent Mg(1)Ce4Mg8 cuboctahedra, edges with eight equivalent Ce(1)Mg12 cuboctahedra, edges with sixteen equivalent Mg(1)Ce4Mg8 cuboctahedra, faces with four equivalent Ce(1)Mg12 cuboctahedra, and faces with fourteen equivalent Mg(1)Ce4Mg8 cuboctahedra. Ce(1) is bonded to twelve equivalent Mg(1) atoms to form CeMg12 cuboctahedra that share corners with twelve equivalent Ce(1)Mg12 cuboctahedra, edges with twenty-four equivalent Mg(1)Ce4Mg8 cuboctahedra, faces with six equivalent Ce(1)Mg12 cuboctahedra, and faces with twelve equivalent Mg(1)Ce4Mg8 cuboctahedra.
Mg3Ce 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 Ce(1) atoms to form MgCe4Mg8 cuboctahedra that share corners with twelve equivalent Mg(1)Ce4Mg8 cuboctahedra, edges with eight equivalent Ce(1)Mg12 cuboctahedra, edges with sixteen equivalent Mg(1)Ce4Mg8 cuboctahedra, faces with four equivalent Ce(1)Mg12 cuboctahedra, and faces with fourteen equivalent Mg(1)Ce4Mg8 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.38 Å. All Mg(1)-Ce(1) bond lengths are 3.38 Å. Ce(1) is bonded to twelve equivalent Mg(1) atoms to form CeMg12 cuboctahedra that share corners with twelve equivalent Ce(1)Mg12 cuboctahedra, edges with twenty-four equivalent Mg(1)Ce4Mg8 cuboctahedra, faces with six equivalent Ce(1)Mg12 cuboctahedra, and faces with twelve equivalent Mg(1)Ce4Mg8 cuboctahedra.