SrBe13 crystallizes in the cubic Fm-3c space group. Sr(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(2) atoms. 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 face and corner-sharing BeBe12 cuboctahedra. In the second Be site, Be(2) is bonded to two equivalent Sr(1), one Be(1), and nine equivalent Be(2) atoms to form BeSr2Be10 cuboctahedra that share  a cornercorner with one Be(1)Be12 cuboctahedra, corners with twenty-seven equivalent Be(2)Sr2Be10 cuboctahedra, edges with eight equivalent Be(2)Sr2Be10 cuboctahedra, faces with two equivalent Be(1)Be12 cuboctahedra, and faces with twenty-three equivalent Be(2)Sr2Be10 cuboctahedra.
SrBe13 crystallizes in the cubic Fm-3c space group. Sr(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(2) atoms. All Sr(1)-Be(2) bond lengths are 3.08 Å. 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 face and corner-sharing BeBe12 cuboctahedra. All Be(1)-Be(2) bond lengths are 2.16 Å. In the second Be site, Be(2) is bonded to two equivalent Sr(1), one Be(1), and nine equivalent Be(2) atoms to form BeSr2Be10 cuboctahedra that share  a cornercorner with one Be(1)Be12 cuboctahedra, corners with twenty-seven equivalent Be(2)Sr2Be10 cuboctahedra, edges with eight equivalent Be(2)Sr2Be10 cuboctahedra, faces with two equivalent Be(1)Be12 cuboctahedra, and faces with twenty-three equivalent Be(2)Sr2Be10 cuboctahedra. There are a spread of Be(2)-Be(2) bond distances ranging from 2.25-2.33 Å.