AcF3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Ac(1) is bonded to four equivalent F(2) and eight equivalent F(1) atoms to form a mixture of corner, edge, and face-sharing AcF12 cuboctahedra. There are two inequivalent F sites. In the first F site, F(1) is bonded to four equivalent Ac(1) atoms to form a mixture of corner and edge-sharing FAc4 tetrahedra. In the second F site, F(2) is bonded in a square co-planar geometry to four equivalent Ac(1) atoms.
AcF3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Ac(1) is bonded to four equivalent F(2) and eight equivalent F(1) atoms to form a mixture of corner, edge, and face-sharing AcF12 cuboctahedra. All Ac(1)-F(2) bond lengths are 2.82 Å. All Ac(1)-F(1) bond lengths are 2.61 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded to four equivalent Ac(1) atoms to form a mixture of corner and edge-sharing FAc4 tetrahedra. In the second F site, F(2) is bonded in a square co-planar geometry to four equivalent Ac(1) atoms.