Nd(IrGe)2 crystallizes in the tetragonal P4/nmm space group. Nd(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 in a 4-coordinate geometry to four equivalent Nd(1) and four equivalent Ge(2) atoms. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to four equivalent Nd(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 8-coordinate geometry to four equivalent Nd(1) and four equivalent Ir(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ir(2), and four equivalent Ir(1) atoms.
Nd(IrGe)2 crystallizes in the tetragonal P4/nmm space group. Nd(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 Nd(1)-Ir(1) bond lengths are 3.34 Å. All Nd(1)-Ir(2) bond lengths are 3.24 Å. All Nd(1)-Ge(1) bond lengths are 3.25 Å. All Nd(1)-Ge(2) bond lengths are 3.27 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 4-coordinate geometry to four equivalent Nd(1) and four equivalent Ge(2) atoms. 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 Nd(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 2.48 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1) and four equivalent Ir(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ir(2), and four equivalent Ir(1) atoms.