MgAl is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Al(1) atoms to form MgMg4Al8 cuboctahedra that share corners with twelve equivalent Mg(1)Mg4Al8 cuboctahedra, edges with eight equivalent Mg(1)Mg4Al8 cuboctahedra, edges with sixteen equivalent Al(1)Mg8Al4 cuboctahedra, faces with eight equivalent Al(1)Mg8Al4 cuboctahedra, and faces with ten equivalent Mg(1)Mg4Al8 cuboctahedra. Al(1) is bonded to eight equivalent Mg(1) and four equivalent Al(1) atoms to form distorted AlMg8Al4 cuboctahedra that share corners with twelve equivalent Al(1)Mg8Al4 cuboctahedra, edges with eight equivalent Al(1)Mg8Al4 cuboctahedra, edges with sixteen equivalent Mg(1)Mg4Al8 cuboctahedra, faces with eight equivalent Mg(1)Mg4Al8 cuboctahedra, and faces with ten equivalent Al(1)Mg8Al4 cuboctahedra.
MgAl is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Al(1) atoms to form MgMg4Al8 cuboctahedra that share corners with twelve equivalent Mg(1)Mg4Al8 cuboctahedra, edges with eight equivalent Mg(1)Mg4Al8 cuboctahedra, edges with sixteen equivalent Al(1)Mg8Al4 cuboctahedra, faces with eight equivalent Al(1)Mg8Al4 cuboctahedra, and faces with ten equivalent Mg(1)Mg4Al8 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.00 Å. All Mg(1)-Al(1) bond lengths are 2.98 Å. Al(1) is bonded to eight equivalent Mg(1) and four equivalent Al(1) atoms to form distorted AlMg8Al4 cuboctahedra that share corners with twelve equivalent Al(1)Mg8Al4 cuboctahedra, edges with eight equivalent Al(1)Mg8Al4 cuboctahedra, edges with sixteen equivalent Mg(1)Mg4Al8 cuboctahedra, faces with eight equivalent Mg(1)Mg4Al8 cuboctahedra, and faces with ten equivalent Al(1)Mg8Al4 cuboctahedra. All Al(1)-Al(1) bond lengths are 3.00 Å.