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Ag3AsO4 crystallizes in the cubic P-43n space group. The structure is three-dimensional. Ag1+ is bonded in a distorted square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.41 Å. As5+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All As–O bond lengths are 1.74 Å. O2- is bonded to three equivalent Ag1+ and one As5+ atom to form corner-sharing OAg3As tetrahedra.
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.