Th2(IrGe)3 crystallizes in the tetragonal P4/mmm space group. Th(1) is bonded in a 6-coordinate geometry to four equivalent Th(1), one Ir(1), and one Ge(1) atom. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a distorted linear geometry to one Th(1) and one Ge(2) atom. In the second Ir site, Ir(2) is bonded in a distorted linear geometry to two equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Th(1), one Ir(2), and four equivalent Ge(1) atoms to form a mixture of distorted corner and edge-sharing GeThGe4Ir octahedra. The corner-sharing octahedra are not tilted. In the second Ge site, Ge(2) is bonded in a distorted linear geometry to two equivalent Ir(1) atoms.
Th2(IrGe)3 crystallizes in the tetragonal P4/mmm space group. Th(1) is bonded in a 6-coordinate geometry to four equivalent Th(1), one Ir(1), and one Ge(1) atom. All Th(1)-Th(1) bond lengths are 2.95 Å. The Th(1)-Ir(1) bond length is 2.53 Å. The Th(1)-Ge(1) bond length is 3.16 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a distorted linear geometry to one Th(1) and one Ge(2) atom. The Ir(1)-Ge(2) bond length is 2.48 Å. In the second Ir site, Ir(2) is bonded in a distorted linear geometry to two equivalent Ge(1) atoms. Both Ir(2)-Ge(1) bond lengths are 2.37 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Th(1), one Ir(2), and four equivalent Ge(1) atoms to form a mixture of distorted corner and edge-sharing GeThGe4Ir octahedra. The corner-sharing octahedra are not tilted. All Ge(1)-Ge(1) bond lengths are 2.95 Å. In the second Ge site, Ge(2) is bonded in a distorted linear geometry to two equivalent Ir(1) atoms.