Pr5Ir2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 2-coordinate geometry to three equivalent Ir(1) atoms. In the second Pr site, Pr(3) is bonded to four equivalent Ir(1) atoms to form distorted edge-sharing PrIr4 tetrahedra. In the third Pr site, Pr(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. Ir(1) is bonded in a 8-coordinate geometry to two equivalent Pr(3), three equivalent Pr(1), and three equivalent Pr(2) atoms.
Pr5Ir2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 2-coordinate geometry to three equivalent Ir(1) atoms. There are a spread of Pr(1)-Ir(1) bond distances ranging from 2.84-3.64 Å. In the second Pr site, Pr(3) is bonded to four equivalent Ir(1) atoms to form distorted edge-sharing PrIr4 tetrahedra. There are two shorter (3.03 Å) and two longer (3.04 Å) Pr(3)-Ir(1) bond lengths. In the third Pr site, Pr(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. There are a spread of Pr(2)-Ir(1) bond distances ranging from 2.89-3.26 Å. Ir(1) is bonded in a 8-coordinate geometry to two equivalent Pr(3), three equivalent Pr(1), and three equivalent Pr(2) atoms.