Pr5Ir3 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 5-coordinate geometry to two equivalent Ir(2) and three equivalent Ir(1) atoms. In the second Pr site, Pr(2) is bonded to four equivalent Ir(1) atoms to form edge-sharing PrIr4 tetrahedra. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to two equivalent Pr(2) and six equivalent Pr(1) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to eight equivalent Pr(1) atoms.
Pr5Ir3 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 5-coordinate geometry to two equivalent Ir(2) and three equivalent Ir(1) atoms. There is one shorter (3.00 Å) and one longer (3.10 Å) Pr(1)-Ir(2) bond length. There are a spread of Pr(1)-Ir(1) bond distances ranging from 2.95-3.32 Å. In the second Pr site, Pr(2) is bonded to four equivalent Ir(1) atoms to form edge-sharing PrIr4 tetrahedra. All Pr(2)-Ir(1) bond lengths are 2.96 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to two equivalent Pr(2) and six equivalent Pr(1) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to eight equivalent Pr(1) atoms.