CeCuAl crystallizes in the hexagonal P-62m space group. Ce(1) is bonded in a 11-coordinate geometry to one Cu(2), four equivalent Cu(1), and six equivalent Al(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Ce(1) and six equivalent Al(1) atoms. In the second Cu site, Cu(1) is bonded in a 9-coordinate geometry to six equivalent Ce(1) and three equivalent Al(1) atoms. Al(1) is bonded to six equivalent Ce(1), two equivalent Cu(1), two equivalent Cu(2), and two equivalent Al(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlCe6Al2Cu4 cuboctahedra.
CeCuAl crystallizes in the hexagonal P-62m space group. Ce(1) is bonded in a 11-coordinate geometry to one Cu(2), four equivalent Cu(1), and six equivalent Al(1) atoms. The Ce(1)-Cu(2) bond length is 3.04 Å. All Ce(1)-Cu(1) bond lengths are 2.97 Å. There are two shorter (3.24 Å) and four longer (3.34 Å) Ce(1)-Al(1) bond lengths. There are two inequivalent Cu sites. In the first Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Ce(1) and six equivalent Al(1) atoms. All Cu(2)-Al(1) bond lengths are 2.62 Å. In the second Cu site, Cu(1) is bonded in a 9-coordinate geometry to six equivalent Ce(1) and three equivalent Al(1) atoms. All Cu(1)-Al(1) bond lengths are 2.85 Å. Al(1) is bonded to six equivalent Ce(1), two equivalent Cu(1), two equivalent Cu(2), and two equivalent Al(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlCe6Al2Cu4 cuboctahedra. Both Al(1)-Al(1) bond lengths are 2.81 Å.