MgV2(Ag3O4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(4) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. In the second V site, V(2) is bonded in a distorted tetrahedral geometry to two equivalent O(1) and two equivalent O(4) atoms. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one O(4) and two equivalent O(2) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(4) atom. In the third Ag site, Ag(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one V(2), one Ag(2), and one Ag(3) atom to form distorted OMgVAg2 trigonal pyramids that share  a cornercorner with one O(2)VAg3 tetrahedra and  an edgeedge with one O(1)MgVAg2 trigonal pyramid. In the second O site, O(2) is bonded to one V(1), one Ag(3), and two equivalent Ag(1) atoms to form distorted OVAg3 tetrahedra that share corners with three equivalent O(2)VAg3 tetrahedra and  a cornercorner with one O(1)MgVAg2 trigonal pyramid. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one Ag(2), and one Ag(3) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(2), one Ag(1), and one Ag(2) atom.
MgV2(Ag3O4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(4) atoms. Both Mg(1)-O(1) bond lengths are 2.02 Å. Both Mg(1)-O(4) bond lengths are 2.00 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. Both V(1)-O(2) bond lengths are 1.78 Å. Both V(1)-O(3) bond lengths are 1.75 Å. In the second V site, V(2) is bonded in a distorted tetrahedral geometry to two equivalent O(1) and two equivalent O(4) atoms. Both V(2)-O(1) bond lengths are 1.85 Å. Both V(2)-O(4) bond lengths are 1.84 Å. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one O(4) and two equivalent O(2) atoms. The Ag(1)-O(4) bond length is 2.23 Å. There is one shorter (2.25 Å) and one longer (2.55 Å) Ag(1)-O(2) bond length. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(4) atom. The Ag(2)-O(1) bond length is 2.28 Å. The Ag(2)-O(3) bond length is 2.25 Å. The Ag(2)-O(4) bond length is 2.61 Å. In the third Ag site, Ag(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. The Ag(3)-O(1) bond length is 2.51 Å. The Ag(3)-O(2) bond length is 2.34 Å. The Ag(3)-O(3) bond length is 2.37 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one V(2), one Ag(2), and one Ag(3) atom to form distorted OMgVAg2 trigonal pyramids that share  a cornercorner with one O(2)VAg3 tetrahedra and  an edgeedge with one O(1)MgVAg2 trigonal pyramid. In the second O site, O(2) is bonded to one V(1), one Ag(3), and two equivalent Ag(1) atoms to form distorted OVAg3 tetrahedra that share corners with three equivalent O(2)VAg3 tetrahedra and  a cornercorner with one O(1)MgVAg2 trigonal pyramid. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one Ag(2), and one Ag(3) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(2), one Ag(1), and one Ag(2) atom.