CeLa3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ce(1) is bonded to four equivalent La(2) and eight equivalent La(1) atoms to form CeLa12 cuboctahedra that share corners with four equivalent Ce(1)La12 cuboctahedra, corners with eight equivalent La(2)La8Ce4 cuboctahedra, edges with eight equivalent Ce(1)La12 cuboctahedra, edges with sixteen equivalent La(1)La8Ce4 cuboctahedra, faces with four equivalent Ce(1)La12 cuboctahedra, faces with six equivalent La(2)La8Ce4 cuboctahedra, and faces with eight equivalent La(1)La8Ce4 cuboctahedra. There are two inequivalent La sites. In the first La site, La(1) is bonded to four equivalent Ce(1), four equivalent La(1), and four equivalent La(2) atoms to form LaLa8Ce4 cuboctahedra that share corners with twelve equivalent La(1)La8Ce4 cuboctahedra, edges with eight equivalent Ce(1)La12 cuboctahedra, edges with eight equivalent La(1)La8Ce4 cuboctahedra, edges with eight equivalent La(2)La8Ce4 cuboctahedra, faces with four equivalent Ce(1)La12 cuboctahedra, faces with four equivalent La(2)La8Ce4 cuboctahedra, and faces with ten equivalent La(1)La8Ce4 cuboctahedra. In the second La site, La(2) is bonded to four equivalent Ce(1) and eight equivalent La(1) atoms to form LaLa8Ce4 cuboctahedra that share corners with four equivalent La(2)La8Ce4 cuboctahedra, corners with eight equivalent Ce(1)La12 cuboctahedra, edges with eight equivalent La(2)La8Ce4 cuboctahedra, edges with sixteen equivalent La(1)La8Ce4 cuboctahedra, faces with four equivalent La(2)La8Ce4 cuboctahedra, faces with six equivalent Ce(1)La12 cuboctahedra, and faces with eight equivalent La(1)La8Ce4 cuboctahedra.
CeLa3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ce(1) is bonded to four equivalent La(2) and eight equivalent La(1) atoms to form CeLa12 cuboctahedra that share corners with four equivalent Ce(1)La12 cuboctahedra, corners with eight equivalent La(2)La8Ce4 cuboctahedra, edges with eight equivalent Ce(1)La12 cuboctahedra, edges with sixteen equivalent La(1)La8Ce4 cuboctahedra, faces with four equivalent Ce(1)La12 cuboctahedra, faces with six equivalent La(2)La8Ce4 cuboctahedra, and faces with eight equivalent La(1)La8Ce4 cuboctahedra. All Ce(1)-La(2) bond lengths are 3.57 Å. All Ce(1)-La(1) bond lengths are 3.64 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded to four equivalent Ce(1), four equivalent La(1), and four equivalent La(2) atoms to form LaLa8Ce4 cuboctahedra that share corners with twelve equivalent La(1)La8Ce4 cuboctahedra, edges with eight equivalent Ce(1)La12 cuboctahedra, edges with eight equivalent La(1)La8Ce4 cuboctahedra, edges with eight equivalent La(2)La8Ce4 cuboctahedra, faces with four equivalent Ce(1)La12 cuboctahedra, faces with four equivalent La(2)La8Ce4 cuboctahedra, and faces with ten equivalent La(1)La8Ce4 cuboctahedra. All La(1)-La(1) bond lengths are 3.57 Å. All La(1)-La(2) bond lengths are 3.64 Å. In the second La site, La(2) is bonded to four equivalent Ce(1) and eight equivalent La(1) atoms to form LaLa8Ce4 cuboctahedra that share corners with four equivalent La(2)La8Ce4 cuboctahedra, corners with eight equivalent Ce(1)La12 cuboctahedra, edges with eight equivalent La(2)La8Ce4 cuboctahedra, edges with sixteen equivalent La(1)La8Ce4 cuboctahedra, faces with four equivalent La(2)La8Ce4 cuboctahedra, faces with six equivalent Ce(1)La12 cuboctahedra, and faces with eight equivalent La(1)La8Ce4 cuboctahedra.