FeF3 crystallizes in the monoclinic C2/c space group. Fe(1) is bonded to two equivalent F(2) and four equivalent F(1) atoms to form corner-sharing FeF6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Fe(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Fe(1) atoms.
FeF3 crystallizes in the monoclinic C2/c space group. Fe(1) is bonded to two equivalent F(2) and four equivalent F(1) atoms to form corner-sharing FeF6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. Both Fe(1)-F(2) bond lengths are 1.94 Å. All Fe(1)-F(1) bond lengths are 1.94 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Fe(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Fe(1) atoms.