U3Ir3Sb4 crystallizes in the cubic I-43d space group. U(1) is bonded in a 12-coordinate geometry to four equivalent Ir(1) and eight equivalent Sb(1) atoms. Ir(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Ir(1) atoms.
U3Ir3Sb4 crystallizes in the cubic I-43d space group. U(1) is bonded in a 12-coordinate geometry to four equivalent Ir(1) and eight equivalent Sb(1) atoms. All U(1)-Ir(1) bond lengths are 2.94 Å. There are four shorter (3.28 Å) and four longer (3.37 Å) U(1)-Sb(1) bond lengths. Ir(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(1) atoms. All Ir(1)-Sb(1) bond lengths are 2.71 Å. Sb(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Ir(1) atoms.