Materials Data on CsAu2F7 by Materials Project
CsAu2F7 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Cs1+ is bonded in a 10-coordinate geometry to ten F1- atoms. There are a spread of Cs–F bond distances ranging from 3.13–3.41 Å. Au3+ is bonded in a rectangular see-saw-like geometry to four F1- atoms. There are a spread of Au–F bond distances ranging from 1.94–2.04 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Au3+ atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Cs1+ and one Au3+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Cs1+ and one Au3+ atom. In the fourth F1- site, F1- is bonded in a bent 120 degrees geometry to two equivalent Au3+ atoms.