Th7Ir3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a distorted water-like geometry to two equivalent Ir(1) atoms. In the second Th site, Th(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. In the third Th site, Th(3) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. Ir(1) is bonded in a 6-coordinate geometry to one Th(3), two equivalent Th(1), and three equivalent Th(2) atoms.
Th7Ir3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a distorted water-like geometry to two equivalent Ir(1) atoms. Both Th(1)-Ir(1) bond lengths are 2.88 Å. In the second Th site, Th(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. There are two shorter (2.91 Å) and one longer (3.01 Å) Th(2)-Ir(1) bond length. In the third Th site, Th(3) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. All Th(3)-Ir(1) bond lengths are 3.01 Å. Ir(1) is bonded in a 6-coordinate geometry to one Th(3), two equivalent Th(1), and three equivalent Th(2) atoms.