Materials Data on Na2AgAsF6 by Materials Project

Na2AgAsF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Na1+ is bonded to twelve equivalent F1- atoms to form distorted NaF12 cuboctahedra that share corners with twelve equivalent NaF12 cuboctahedra, faces with six equivalent NaF12 cuboctahedra, faces with four equivalent AgF6 octahedra, and faces with four equivalent AsF6 octahedra. All Na–F bond lengths are 3.13 Å. Ag1+ is bonded to six equivalent F1- atoms to form AgF6 octahedra that share corners with six equivalent AsF6 octahedra and faces with eight equivalent NaF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ag–F bond lengths are 2.37 Å. As3+ is bonded to six equivalent F1- atoms to form AsF6 octahedra that share corners with six equivalent AgF6 octahedra and faces with eight equivalent NaF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All As–F bond lengths are 2.05 Å. F1- is bonded in a linear geometry to four equivalent Na1+, one Ag1+, and one As3+ atom.