Materials Data on U2AuF11 by Materials Project
U2AuF11 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. U6+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of U–F bond distances ranging from 2.16–2.31 Å. Au1- is bonded in a square co-planar geometry to four equivalent F1- atoms. All Au–F bond lengths are 2.20 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two equivalent U6+ atoms. In the second F1- site, F1- is bonded in a distorted linear geometry to one U6+ and one Au1- atom. In the third F1- site, F1- is bonded in a linear geometry to two equivalent U6+ atoms. In the fourth F1- site, F1- is bonded in a linear geometry to two equivalent U6+ atoms.