La3Ir4Sn13 crystallizes in the cubic Pm-3n space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1) and twelve equivalent Sn(2) atoms. Ir(1) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 2-coordinate geometry to three equivalent La(1), two equivalent Ir(1), and one Sn(1) atom. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.
La3Ir4Sn13 crystallizes in the cubic Pm-3n space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1) and twelve equivalent Sn(2) atoms. All La(1)-Ir(1) bond lengths are 3.47 Å. There are eight shorter (3.45 Å) and four longer (3.46 Å) La(1)-Sn(2) bond lengths. Ir(1) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Sn(2) atoms. All Ir(1)-Sn(2) bond lengths are 2.69 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 2-coordinate geometry to three equivalent La(1), two equivalent Ir(1), and one Sn(1) atom. The Sn(2)-Sn(1) bond length is 3.35 Å. In the second Sn site, Sn(1) is bonded in a cuboctahedral geometry to twelve equivalent Sn(2) atoms.