Materials Data on Ag3AsO4 by Materials Project

Ag3AsO4 crystallizes in the trigonal R3c space group. The structure is three-dimensional. Ag1+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Ag–O bond distances ranging from 2.38–2.45 Å. As5+ is bonded in a tetrahedral geometry to four O2- atoms. All As–O bond lengths are 1.74 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Ag1+ and one As5+ atom to form corner-sharing OAg3As tetrahedra. In the second O2- site, O2- is bonded to three equivalent Ag1+ and one As5+ atom to form distorted corner-sharing OAg3As tetrahedra.