CeCoAl4 crystallizes in the orthorhombic Pmma space group. Ce(1) is bonded in a 13-coordinate geometry to one Co(1), two equivalent Al(2), two equivalent Al(3), and eight equivalent Al(1) atoms. Co(1) is bonded in a 9-coordinate geometry to one Ce(1), two equivalent Al(2), two equivalent Al(3), and four equivalent Al(1) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a 12-coordinate geometry to four equivalent Ce(1), two equivalent Co(1), two equivalent Al(1), two equivalent Al(2), and two equivalent Al(3) atoms. In the second Al site, Al(2) is bonded in a distorted linear geometry to two equivalent Ce(1), two equivalent Co(1), four equivalent Al(1), and four equivalent Al(3) atoms. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Co(1), four equivalent Al(1), and four equivalent Al(2) atoms.
CeCoAl4 crystallizes in the orthorhombic Pmma space group. Ce(1) is bonded in a 13-coordinate geometry to one Co(1), two equivalent Al(2), two equivalent Al(3), and eight equivalent Al(1) atoms. The Ce(1)-Co(1) bond length is 2.93 Å. Both Ce(1)-Al(2) bond lengths are 3.24 Å. Both Ce(1)-Al(3) bond lengths are 3.09 Å. There are four shorter (3.21 Å) and four longer (3.28 Å) Ce(1)-Al(1) bond lengths. Co(1) is bonded in a 9-coordinate geometry to one Ce(1), two equivalent Al(2), two equivalent Al(3), and four equivalent Al(1) atoms. Both Co(1)-Al(2) bond lengths are 2.30 Å. Both Co(1)-Al(3) bond lengths are 2.56 Å. All Co(1)-Al(1) bond lengths are 2.55 Å. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a 12-coordinate geometry to four equivalent Ce(1), two equivalent Co(1), two equivalent Al(1), two equivalent Al(2), and two equivalent Al(3) atoms. There is one shorter (2.73 Å) and one longer (2.98 Å) Al(1)-Al(1) bond length. Both Al(1)-Al(2) bond lengths are 2.92 Å. There is one shorter (2.69 Å) and one longer (2.99 Å) Al(1)-Al(3) bond length. In the second Al site, Al(2) is bonded in a distorted linear geometry to two equivalent Ce(1), two equivalent Co(1), four equivalent Al(1), and four equivalent Al(3) atoms. All Al(2)-Al(3) bond lengths are 2.78 Å. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Co(1), four equivalent Al(1), and four equivalent Al(2) atoms.