LaCoIn5 crystallizes in the tetragonal P4/mmm space group. La(1) is bonded to four equivalent In(1) and eight equivalent In(2) atoms to form a mixture of corner and face-sharing LaIn12 cuboctahedra. Co(1) is bonded in a body-centered cubic geometry to eight equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a distorted square co-planar geometry to four equivalent La(1) and eight equivalent In(2) atoms. In the second In site, In(2) is bonded in a 11-coordinate geometry to two equivalent La(1), two equivalent Co(1), two equivalent In(1), and five equivalent In(2) atoms.
LaCoIn5 crystallizes in the tetragonal P4/mmm space group. La(1) is bonded to four equivalent In(1) and eight equivalent In(2) atoms to form a mixture of corner and face-sharing LaIn12 cuboctahedra. All La(1)-In(1) bond lengths are 3.28 Å. All La(1)-In(2) bond lengths are 3.33 Å. Co(1) is bonded in a body-centered cubic geometry to eight equivalent In(2) atoms. All Co(1)-In(2) bond lengths are 2.72 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a distorted square co-planar geometry to four equivalent La(1) and eight equivalent In(2) atoms. All In(1)-In(2) bond lengths are 3.33 Å. In the second In site, In(2) is bonded in a 11-coordinate geometry to two equivalent La(1), two equivalent Co(1), two equivalent In(1), and five equivalent In(2) atoms. There is one shorter (2.86 Å) and four longer (3.28 Å) In(2)-In(2) bond lengths.