UFe4P12 crystallizes in the cubic Im-3 space group. U(1) is bonded to twelve equivalent P(1) atoms to form UP12 cuboctahedra that share faces with eight equivalent Fe(1)P6 octahedra. Fe(1) is bonded to six equivalent P(1) atoms to form FeP6 octahedra that share corners with six equivalent Fe(1)P6 octahedra and faces with two equivalent U(1)P12 cuboctahedra. The corner-sharing octahedral tilt angles are 59°. P(1) is bonded in a distorted bent 120 degrees geometry to one U(1), two equivalent Fe(1), and two equivalent P(1) atoms.
UFe4P12 crystallizes in the cubic Im-3 space group. U(1) is bonded to twelve equivalent P(1) atoms to form UP12 cuboctahedra that share faces with eight equivalent Fe(1)P6 octahedra. All U(1)-P(1) bond lengths are 2.95 Å. Fe(1) is bonded to six equivalent P(1) atoms to form FeP6 octahedra that share corners with six equivalent Fe(1)P6 octahedra and faces with two equivalent U(1)P12 cuboctahedra. The corner-sharing octahedral tilt angles are 59°. All Fe(1)-P(1) bond lengths are 2.22 Å. P(1) is bonded in a distorted bent 120 degrees geometry to one U(1), two equivalent Fe(1), and two equivalent P(1) atoms. There is one shorter (2.32 Å) and one longer (2.34 Å) P(1)-P(1) bond length.