Sr(FeN)2 crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent N(1) atoms to form distorted SrN6 octahedra that share corners with twelve equivalent Fe(1)N4 tetrahedra, edges with six equivalent Sr(1)N6 octahedra, and edges with six equivalent Fe(1)N4 tetrahedra. Fe(1) is bonded to four equivalent N(1) atoms to form FeN4 tetrahedra that share corners with six equivalent Sr(1)N6 octahedra, corners with six equivalent Fe(1)N4 tetrahedra, edges with three equivalent Sr(1)N6 octahedra, and edges with three equivalent Fe(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-47°. N(1) is bonded in a 7-coordinate geometry to three equivalent Sr(1) and four equivalent Fe(1) atoms.
Sr(FeN)2 crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent N(1) atoms to form distorted SrN6 octahedra that share corners with twelve equivalent Fe(1)N4 tetrahedra, edges with six equivalent Sr(1)N6 octahedra, and edges with six equivalent Fe(1)N4 tetrahedra. All Sr(1)-N(1) bond lengths are 2.71 Å. Fe(1) is bonded to four equivalent N(1) atoms to form FeN4 tetrahedra that share corners with six equivalent Sr(1)N6 octahedra, corners with six equivalent Fe(1)N4 tetrahedra, edges with three equivalent Sr(1)N6 octahedra, and edges with three equivalent Fe(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-47°. There is one shorter (1.94 Å) and three longer (2.06 Å) Fe(1)-N(1) bond lengths. N(1) is bonded in a 7-coordinate geometry to three equivalent Sr(1) and four equivalent Fe(1) atoms.