10.17188/1304385
None Available
Materials Data on RbAgF3 by Materials Project
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
2020
Specialized Mix
36 MATERIALS SCIENCE
crystal structure
RbAgF3
Ag-F-Rb
The Materials Project
2020
en
RbAgF3 is (Cubic) Perovskite structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Rb1+ is bonded to twelve F1- atoms to form RbF12 cuboctahedra that share corners with twelve equivalent RbF12 cuboctahedra, faces with six equivalent RbF12 cuboctahedra, and faces with eight equivalent AgF6 octahedra. There are eight shorter (3.13 Å) and four longer (3.16 Å) Rb–F bond lengths. Ag2+ is bonded to six F1- atoms to form AgF6 octahedra that share corners with six equivalent AgF6 octahedra and faces with eight equivalent RbF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Ag–F bond distances ranging from 2.17–2.30 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted linear geometry to four equivalent Rb1+ and two equivalent Ag2+ atoms. In the second F1- site, F1- is bonded in a distorted linear geometry to four equivalent Rb1+ and two equivalent Ag2+ atoms.