LaIrGe3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 17-coordinate geometry to five equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(1) atoms. Ir(1) is bonded in a 5-coordinate geometry to five equivalent La(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 La(1), two equivalent Ir(1), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent La(1), one Ir(1), and four equivalent Ge(1) atoms.
LaIrGe3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 17-coordinate geometry to five equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(1) atoms. There is one shorter (3.43 Å) and four longer (3.54 Å) La(1)-Ir(1) bond lengths. All La(1)-Ge(2) bond lengths are 3.24 Å. There are four shorter (3.26 Å) and four longer (3.47 Å) La(1)-Ge(1) bond lengths. Ir(1) is bonded in a 5-coordinate geometry to five equivalent La(1), one Ge(2), and four equivalent Ge(1) atoms. The Ir(1)-Ge(2) bond length is 2.41 Å. All Ir(1)-Ge(1) bond lengths are 2.46 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent La(1), two equivalent Ir(1), and two equivalent Ge(2) atoms. Both Ge(1)-Ge(2) bond lengths are 2.74 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to four equivalent La(1), one Ir(1), and four equivalent Ge(1) atoms.