La7Ir3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. In the second La site, La(3) is bonded in a distorted water-like geometry to two equivalent Ir(1) atoms. In the third La site, La(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. Ir(1) is bonded in a 6-coordinate geometry to one La(1), two equivalent La(3), and three equivalent La(2) atoms.
La7Ir3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. All La(1)-Ir(1) bond lengths are 2.94 Å. In the second La site, La(3) is bonded in a distorted water-like geometry to two equivalent Ir(1) atoms. Both La(3)-Ir(1) bond lengths are 2.93 Å. In the third La site, La(2) is bonded in a 3-coordinate geometry to three equivalent Ir(1) atoms. There are two shorter (2.99 Å) and one longer (3.05 Å) La(2)-Ir(1) bond length. Ir(1) is bonded in a 6-coordinate geometry to one La(1), two equivalent La(3), and three equivalent La(2) atoms.