Sm5Ir2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 2-coordinate geometry to three equivalent Ir(1) atoms. In the second Sm site, Sm(3) is bonded to four equivalent Ir(1) atoms to form distorted edge-sharing SmIr4 tetrahedra. In the third Sm site, Sm(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 Sm(3), three equivalent Sm(1), and three equivalent Sm(2) atoms.
Sm5Ir2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 2-coordinate geometry to three equivalent Ir(1) atoms. There are a spread of Sm(1)-Ir(1) bond distances ranging from 2.78-3.51 Å. In the second Sm site, Sm(3) is bonded to four equivalent Ir(1) atoms to form distorted edge-sharing SmIr4 tetrahedra. There are two shorter (2.95 Å) and two longer (2.99 Å) Sm(3)-Ir(1) bond lengths. In the third Sm site, Sm(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. There are a spread of Sm(2)-Ir(1) bond distances ranging from 2.85-3.16 Å. Ir(1) is bonded in a 8-coordinate geometry to two equivalent Sm(3), three equivalent Sm(1), and three equivalent Sm(2) atoms.