Materials Data on AlTlFe2F2 by Materials Project
Fe2TlAlF2 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Fe is bonded in a 5-coordinate geometry to one Fe, two equivalent Tl, and two equivalent Al atoms. The Fe–Fe bond length is 2.64 Å. Both Fe–Tl bond lengths are 3.32 Å. Both Fe–Al bond lengths are 2.52 Å. Tl is bonded in a 4-coordinate geometry to four equivalent Fe atoms. Al is bonded in a linear geometry to four equivalent Fe and two equivalent F atoms. Both Al–F bond lengths are 1.76 Å. F is bonded in a single-bond geometry to one Al atom.