Th(IrGe)2 crystallizes in the tetragonal P4/nmm space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ir(2), four equivalent Ge(1), and four equivalent Ge(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to four equivalent Th(1) and four equivalent Ge(2) atoms to form a mixture of distorted edge and face-sharing IrTh4Ge4 tetrahedra. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to four equivalent Th(1), one Ge(2), and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 4-coordinate geometry to four equivalent Th(1) and four equivalent Ir(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent Th(1), one Ir(2), and four equivalent Ir(1) atoms.
Th(IrGe)2 crystallizes in the tetragonal P4/nmm space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ir(2), four equivalent Ge(1), and four equivalent Ge(2) atoms. All Th(1)-Ir(1) bond lengths are 3.37 Å. All Th(1)-Ir(2) bond lengths are 3.23 Å. All Th(1)-Ge(1) bond lengths are 3.25 Å. All Th(1)-Ge(2) bond lengths are 3.27 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to four equivalent Th(1) and four equivalent Ge(2) atoms to form a mixture of distorted edge and face-sharing IrTh4Ge4 tetrahedra. All Ir(1)-Ge(2) bond lengths are 2.51 Å. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to four equivalent Th(1), one Ge(2), and four equivalent Ge(1) atoms. The Ir(2)-Ge(2) bond length is 2.44 Å. All Ir(2)-Ge(1) bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 4-coordinate geometry to four equivalent Th(1) and four equivalent Ir(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent Th(1), one Ir(2), and four equivalent Ir(1) atoms.