UGdN2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. U(1) is bonded to six equivalent N(1) atoms to form UN6 octahedra that share corners with six equivalent Gd(1)N6 octahedra, edges with six equivalent U(1)N6 octahedra, and edges with six equivalent Gd(1)N6 octahedra. The corner-sharing octahedral tilt angles are 3°. Gd(1) is bonded to six equivalent N(1) atoms to form GdN6 octahedra that share corners with six equivalent U(1)N6 octahedra, edges with six equivalent U(1)N6 octahedra, and edges with six equivalent Gd(1)N6 octahedra. The corner-sharing octahedral tilt angles are 3°. N(1) is bonded to three equivalent U(1) and three equivalent Gd(1) atoms to form a mixture of corner and edge-sharing NGd3U3 octahedra. The corner-sharing octahedra are not tilted.
UGdN2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. U(1) is bonded to six equivalent N(1) atoms to form UN6 octahedra that share corners with six equivalent Gd(1)N6 octahedra, edges with six equivalent U(1)N6 octahedra, and edges with six equivalent Gd(1)N6 octahedra. The corner-sharing octahedral tilt angles are 3°. All U(1)-N(1) bond lengths are 2.43 Å. Gd(1) is bonded to six equivalent N(1) atoms to form GdN6 octahedra that share corners with six equivalent U(1)N6 octahedra, edges with six equivalent U(1)N6 octahedra, and edges with six equivalent Gd(1)N6 octahedra. The corner-sharing octahedral tilt angles are 3°. All Gd(1)-N(1) bond lengths are 2.51 Å. N(1) is bonded to three equivalent U(1) and three equivalent Gd(1) atoms to form a mixture of corner and edge-sharing NGd3U3 octahedra. The corner-sharing octahedra are not tilted.