PrCoIn5 crystallizes in the tetragonal P4/mmm space group. Pr(1) is bonded to four equivalent In(1) and eight equivalent In(2) atoms to form a mixture of face and corner-sharing PrIn12 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 Pr(1) and eight equivalent In(2) atoms. In the second In site, In(2) is bonded in a 11-coordinate geometry to two equivalent Pr(1), two equivalent Co(1), two equivalent In(1), and five equivalent In(2) atoms.
PrCoIn5 crystallizes in the tetragonal P4/mmm space group. Pr(1) is bonded to four equivalent In(1) and eight equivalent In(2) atoms to form a mixture of face and corner-sharing PrIn12 cuboctahedra. All Pr(1)-In(1) bond lengths are 3.25 Å. All Pr(1)-In(2) bond lengths are 3.30 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 2.71 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 Pr(1) and eight equivalent In(2) atoms. All In(1)-In(2) bond lengths are 3.30 Å. In the second In site, In(2) is bonded in a 11-coordinate geometry to two equivalent Pr(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 (3.25 Å) In(2)-In(2) bond lengths.