Materials Data on AlAg3F6 by Materials Project

Abstract

Ag3AlF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded to twelve equivalent F1- atoms to form AgF12 cuboctahedra that share corners with twelve equivalent AgF12 cuboctahedra, faces with six equivalent AgF12 cuboctahedra, faces with four equivalent AgF6 octahedra, and faces with four equivalent AlF6 octahedra. All Ag–F bond lengths are 2.98 Å. In the second Ag1+ site, Ag1+ is bonded to six equivalent F1- atoms to form AgF6 octahedra that share corners with six equivalent AlF6 octahedra and faces with eight equivalent AgF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ag–F bond lengths are 2.37 Å. Al3+ is bonded to six equivalent F1- atoms to form AlF6 octahedra that share corners with six equivalent AgF6 octahedra and faces with eight equivalent AgF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Al–F bond lengths are 1.82 Å. F1- is bonded in a 2-coordinate geometry to five Ag1+ and one Al3+ atom.