LaBe13 crystallizes in the cubic Fm-3c space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to twelve equivalent Be(2) atoms to form a mixture of corner and face-sharing BeBe12 cuboctahedra. In the second Be site, Be(2) is bonded to one Be(1), nine equivalent Be(2), and two equivalent La(1) atoms to form distorted BeLa2Be10 cuboctahedra that share  a cornercorner with one Be(1)Be12 cuboctahedra, corners with twenty-seven equivalent Be(2)La2Be10 cuboctahedra, edges with eight equivalent Be(2)La2Be10 cuboctahedra, faces with two equivalent Be(1)Be12 cuboctahedra, and faces with twenty-three equivalent Be(2)La2Be10 cuboctahedra. La(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(2) atoms.
LaBe13 crystallizes in the cubic Fm-3c space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to twelve equivalent Be(2) atoms to form a mixture of corner and face-sharing BeBe12 cuboctahedra. All Be(1)-Be(2) bond lengths are 2.17 Å. In the second Be site, Be(2) is bonded to one Be(1), nine equivalent Be(2), and two equivalent La(1) atoms to form distorted BeLa2Be10 cuboctahedra that share  a cornercorner with one Be(1)Be12 cuboctahedra, corners with twenty-seven equivalent Be(2)La2Be10 cuboctahedra, edges with eight equivalent Be(2)La2Be10 cuboctahedra, faces with two equivalent Be(1)Be12 cuboctahedra, and faces with twenty-three equivalent Be(2)La2Be10 cuboctahedra. There are a spread of Be(2)-Be(2) bond distances ranging from 2.26-2.34 Å. Both Be(2)-La(1) bond lengths are 3.07 Å. La(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(2) atoms.