Al3Dy is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Dy(1) is bonded to four equivalent Al(1) and eight equivalent Al(2) atoms to form DyAl12 cuboctahedra that share corners with four equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with sixteen equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with eight equivalent Al(2)Dy4Al8 cuboctahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a square co-planar geometry to four equivalent Dy(1) and eight equivalent Al(2) atoms. In the second Al site, Al(2) is bonded to four equivalent Dy(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted AlDy4Al8 cuboctahedra that share corners with twelve equivalent Al(2)Dy4Al8 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with ten equivalent Al(2)Dy4Al8 cuboctahedra.
Al3Dy is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Dy(1) is bonded to four equivalent Al(1) and eight equivalent Al(2) atoms to form DyAl12 cuboctahedra that share corners with four equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with sixteen equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with eight equivalent Al(2)Dy4Al8 cuboctahedra. All Dy(1)-Al(1) bond lengths are 2.96 Å. All Dy(1)-Al(2) bond lengths are 3.11 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a square co-planar geometry to four equivalent Dy(1) and eight equivalent Al(2) atoms. All Al(1)-Al(2) bond lengths are 3.11 Å. In the second Al site, Al(2) is bonded to four equivalent Dy(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted AlDy4Al8 cuboctahedra that share corners with twelve equivalent Al(2)Dy4Al8 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with ten equivalent Al(2)Dy4Al8 cuboctahedra. All Al(2)-Al(2) bond lengths are 2.96 Å.