LaNiIn crystallizes in the hexagonal P-62m space group. La(1) is bonded in a 11-coordinate geometry to one Ni(2), four equivalent Ni(1), and six equivalent In(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent In(1) atoms. In the second Ni site, Ni(1) is bonded in a 9-coordinate geometry to six equivalent La(1) and three equivalent In(1) atoms. In(1) is bonded in a 12-coordinate geometry to six equivalent La(1), two equivalent Ni(1), two equivalent Ni(2), and two equivalent In(1) atoms.
LaNiIn crystallizes in the hexagonal P-62m space group. La(1) is bonded in a 11-coordinate geometry to one Ni(2), four equivalent Ni(1), and six equivalent In(1) atoms. The La(1)-Ni(2) bond length is 3.14 Å. All La(1)-Ni(1) bond lengths are 3.05 Å. There are two shorter (3.29 Å) and four longer (3.41 Å) La(1)-In(1) bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent In(1) atoms. All Ni(2)-In(1) bond lengths are 2.73 Å. In the second Ni site, Ni(1) is bonded in a 9-coordinate geometry to six equivalent La(1) and three equivalent In(1) atoms. All Ni(1)-In(1) bond lengths are 2.92 Å. In(1) is bonded in a 12-coordinate geometry to six equivalent La(1), two equivalent Ni(1), two equivalent Ni(2), and two equivalent In(1) atoms. Both In(1)-In(1) bond lengths are 3.13 Å.