AlF3 crystallizes in the monoclinic C2/c space group. Al(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedral tilt angles range from 4-26°. There are two inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Al(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Al(1) atoms.
AlF3 crystallizes in the monoclinic C2/c space group. Al(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedral tilt angles range from 4-26°. Both Al(1)-F(1) bond lengths are 1.81 Å. There are two shorter (1.81 Å) and two longer (1.85 Å) Al(1)-F(2) bond lengths. There are two inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Al(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Al(1) atoms.