Materials Data on Sb4O5F2 by Materials Project

Sb4O5F2 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one Sb4O5F2 sheet oriented in the (1, 0, 0) direction. there are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded in a distorted rectangular see-saw-like geometry to three O2- and one F1- atom. There are a spread of Sb–O bond distances ranging from 1.99–2.38 Å. The Sb–F bond length is 2.07 Å. In the second Sb3+ site, Sb3+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sb–O bond distances ranging from 1.95–2.26 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to three Sb3+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent Sb3+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to three Sb3+ atoms. F1- is bonded in a single-bond geometry to one Sb3+ atom.