La3Ir2 crystallizes in the trigonal R-3 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in an octahedral geometry to six equivalent Ir(1) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Ir(1) atoms. In the third La site, La(3) is bonded in a 5-coordinate geometry to five equivalent Ir(1) atoms. Ir(1) is bonded in a 8-coordinate geometry to one La(1), two equivalent La(2), and five equivalent La(3) atoms.
La3Ir2 crystallizes in the trigonal R-3 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in an octahedral geometry to six equivalent Ir(1) atoms. All La(1)-Ir(1) bond lengths are 3.11 Å. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Ir(1) atoms. There are three shorter (2.96 Å) and three longer (3.17 Å) La(2)-Ir(1) bond lengths. In the third La site, La(3) is bonded in a 5-coordinate geometry to five equivalent Ir(1) atoms. There are a spread of La(3)-Ir(1) bond distances ranging from 2.91-3.26 Å. Ir(1) is bonded in a 8-coordinate geometry to one La(1), two equivalent La(2), and five equivalent La(3) atoms.