TbIrGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 15-coordinate geometry to six equivalent Ir(1), one Ge(3), two equivalent Ge(2), and six equivalent Ge(1) atoms. In the second Tb site, Tb(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. Ir(1) is bonded in a 10-coordinate geometry to two equivalent Tb(2), three equivalent Tb(1), one Ge(2), one Ge(3), and three equivalent Ge(1) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Tb(2), three equivalent Tb(1), three equivalent Ir(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), two equivalent Ir(1), and one Ge(2) atom. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to one Tb(1), four equivalent Tb(2), and two equivalent Ir(1) atoms.
TbIrGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 15-coordinate geometry to six equivalent Ir(1), one Ge(3), two equivalent Ge(2), and six equivalent Ge(1) atoms. There are four shorter (3.23 Å) and two longer (3.25 Å) Tb(1)-Ir(1) bond lengths. The Tb(1)-Ge(3) bond length is 3.49 Å. Both Tb(1)-Ge(2) bond lengths are 2.97 Å. There are four shorter (2.94 Å) and two longer (3.07 Å) Tb(1)-Ge(1) bond lengths. In the second Tb site, Tb(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. All Tb(2)-Ir(1) bond lengths are 3.17 Å. Both Tb(2)-Ge(1) bond lengths are 3.37 Å. All Tb(2)-Ge(2) bond lengths are 3.24 Å. All Tb(2)-Ge(3) bond lengths are 3.39 Å. Ir(1) is bonded in a 10-coordinate geometry to two equivalent Tb(2), three equivalent Tb(1), one Ge(2), one Ge(3), and three equivalent Ge(1) atoms. The Ir(1)-Ge(2) bond length is 2.48 Å. The Ir(1)-Ge(3) bond length is 2.45 Å. There are two shorter (2.46 Å) and one longer (2.62 Å) Ir(1)-Ge(1) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Tb(2), three equivalent Tb(1), three equivalent Ir(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.72 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), two equivalent Ir(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.47 Å. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to one Tb(1), four equivalent Tb(2), and two equivalent Ir(1) atoms.