Ag7NO8 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. In the second Ag site, Ag(2) is bonded in a 5-coordinate geometry to one N(1) and four equivalent O(1) atoms. N(1) is bonded to six equivalent Ag(2) atoms to form NAg6 octahedra that share corners with twenty-four equivalent O(1)Ag4 tetrahedra. O(1) is bonded to one Ag(1) and three equivalent Ag(2) atoms to form distorted OAg4 tetrahedra that share corners with three equivalent N(1)Ag6 octahedra,  a cornercorner with one O(1)Ag4 tetrahedra, edges with three equivalent O(1)Ag4 tetrahedra, and faces with three equivalent O(1)Ag4 tetrahedra. The corner-sharing octahedral tilt angles are 51°.
Ag7NO8 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. All Ag(1)-O(1) bond lengths are 2.27 Å. In the second Ag site, Ag(2) is bonded in a 5-coordinate geometry to one N(1) and four equivalent O(1) atoms. The Ag(2)-N(1) bond length is 2.19 Å. All Ag(2)-O(1) bond lengths are 2.39 Å. N(1) is bonded to six equivalent Ag(2) atoms to form NAg6 octahedra that share corners with twenty-four equivalent O(1)Ag4 tetrahedra. O(1) is bonded to one Ag(1) and three equivalent Ag(2) atoms to form distorted OAg4 tetrahedra that share corners with three equivalent N(1)Ag6 octahedra,  a cornercorner with one O(1)Ag4 tetrahedra, edges with three equivalent O(1)Ag4 tetrahedra, and faces with three equivalent O(1)Ag4 tetrahedra. The corner-sharing octahedral tilt angles are 51°.