FeNiN crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded in a square co-planar geometry to four equivalent N(1) atoms. Ni(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded to four equivalent Fe(1) and two equivalent Ni(1) atoms to form a mixture of corner and edge-sharing NFe4Ni2 octahedra. The corner-sharing octahedra are not tilted.
FeNiN crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded in a square co-planar geometry to four equivalent N(1) atoms. All Fe(1)-N(1) bond lengths are 1.98 Å. Ni(1) is bonded in a linear geometry to two equivalent N(1) atoms. Both Ni(1)-N(1) bond lengths are 1.87 Å. N(1) is bonded to four equivalent Fe(1) and two equivalent Ni(1) atoms to form a mixture of corner and edge-sharing NFe4Ni2 octahedra. The corner-sharing octahedra are not tilted.