U2PN2 crystallizes in the trigonal P-3m1 space group. U(1) is bonded in a 7-coordinate geometry to three equivalent P(1) and four equivalent N(1) atoms. P(1) is bonded to six equivalent U(1) atoms to form PU6 octahedra that share corners with twelve equivalent N(1)U4 tetrahedra, edges with six equivalent P(1)U6 octahedra, and edges with six equivalent N(1)U4 tetrahedra. N(1) is bonded to four equivalent U(1) atoms to form NU4 tetrahedra that share corners with six equivalent P(1)U6 octahedra, corners with six equivalent N(1)U4 tetrahedra, edges with three equivalent P(1)U6 octahedra, and edges with three equivalent N(1)U4 tetrahedra. The corner-sharing octahedral tilt angles range from 25-50°.
U2PN2 crystallizes in the trigonal P-3m1 space group. U(1) is bonded in a 7-coordinate geometry to three equivalent P(1) and four equivalent N(1) atoms. All U(1)-P(1) bond lengths are 2.86 Å. There are three shorter (2.28 Å) and one longer (2.30 Å) U(1)-N(1) bond length. P(1) is bonded to six equivalent U(1) atoms to form PU6 octahedra that share corners with twelve equivalent N(1)U4 tetrahedra, edges with six equivalent P(1)U6 octahedra, and edges with six equivalent N(1)U4 tetrahedra. N(1) is bonded to four equivalent U(1) atoms to form NU4 tetrahedra that share corners with six equivalent P(1)U6 octahedra, corners with six equivalent N(1)U4 tetrahedra, edges with three equivalent P(1)U6 octahedra, and edges with three equivalent N(1)U4 tetrahedra. The corner-sharing octahedral tilt angles range from 25-50°.