Ce2In crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to six equivalent Ce(2) and five equivalent In(1) atoms to form a mixture of face and corner-sharing CeCe6In5 trigonal bipyramids. In the second Ce site, Ce(2) is bonded in a 14-coordinate geometry to two equivalent Ce(2), six equivalent Ce(1), and six equivalent In(1) atoms. In(1) is bonded in a 11-coordinate geometry to five equivalent Ce(1) and six equivalent Ce(2) atoms.
Ce2In crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to six equivalent Ce(2) and five equivalent In(1) atoms to form a mixture of face and corner-sharing CeCe6In5 trigonal bipyramids. All Ce(1)-Ce(2) bond lengths are 3.62 Å. There are three shorter (3.21 Å) and two longer (3.37 Å) Ce(1)-In(1) bond lengths. In the second Ce site, Ce(2) is bonded in a 14-coordinate geometry to two equivalent Ce(2), six equivalent Ce(1), and six equivalent In(1) atoms. Both Ce(2)-Ce(2) bond lengths are 3.37 Å. All Ce(2)-In(1) bond lengths are 3.62 Å. In(1) is bonded in a 11-coordinate geometry to five equivalent Ce(1) and six equivalent Ce(2) atoms.