CeAlO3 crystallizes in the trigonal R-3c space group. Ce(1) is bonded to twelve equivalent O(1) atoms to form distorted CeO12 cuboctahedra that share corners with twelve equivalent Ce(1)O12 cuboctahedra, faces with six equivalent Ce(1)O12 cuboctahedra, and faces with eight equivalent Al(1)O6 octahedra. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Al(1)O6 octahedra and faces with eight equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 11°. O(1) is bonded in a 2-coordinate geometry to four equivalent Ce(1) and two equivalent Al(1) atoms.
CeAlO3 crystallizes in the trigonal R-3c space group. Ce(1) is bonded to twelve equivalent O(1) atoms to form distorted CeO12 cuboctahedra that share corners with twelve equivalent Ce(1)O12 cuboctahedra, faces with six equivalent Ce(1)O12 cuboctahedra, and faces with eight equivalent Al(1)O6 octahedra. There are a spread of Ce(1)-O(1) bond distances ranging from 2.49-2.86 Å. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Al(1)O6 octahedra and faces with eight equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 11°. All Al(1)-O(1) bond lengths are 1.89 Å. O(1) is bonded in a 2-coordinate geometry to four equivalent Ce(1) and two equivalent Al(1) atoms.