UPt4Ir crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1) and twelve equivalent Pt(1) atoms. Ir(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Pt(1) atoms. Pt(1) is bonded to three equivalent U(1), three equivalent Ir(1), and six equivalent Pt(1) atoms to form a mixture of edge, face, and corner-sharing PtU3Ir3Pt6 cuboctahedra.
UPt4Ir crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1) and twelve equivalent Pt(1) atoms. All U(1)-Ir(1) bond lengths are 3.23 Å. All U(1)-Pt(1) bond lengths are 3.09 Å. Ir(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Pt(1) atoms. All Ir(1)-Pt(1) bond lengths are 3.09 Å. Pt(1) is bonded to three equivalent U(1), three equivalent Ir(1), and six equivalent Pt(1) atoms to form a mixture of edge, face, and corner-sharing PtU3Ir3Pt6 cuboctahedra. There are three shorter (2.63 Å) and three longer (2.65 Å) Pt(1)-Pt(1) bond lengths.