V2FeAg3O8 crystallizes in the monoclinic C2/c space group. V(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form VO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with five equivalent Ag(2)O5 trigonal bipyramids, and corners with two equivalent Ag(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 29-58°. Fe(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with six equivalent V(1)O4 tetrahedra, corners with two equivalent Ag(2)O5 trigonal bipyramids, corners with two equivalent Ag(1)O4 trigonal pyramids, and edges with two equivalent Ag(2)O5 trigonal bipyramids. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form distorted AgO4 trigonal pyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent V(1)O4 tetrahedra, and corners with six equivalent Ag(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 69°. In the second Ag site, Ag(2) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted AgO5 trigonal bipyramids that share  a cornercorner with one Fe(1)O6 octahedra, corners with five equivalent V(1)O4 tetrahedra, corners with two equivalent Ag(2)O5 trigonal bipyramids, corners with three equivalent Ag(1)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. There are four inequivalent O sites. In the first O site, O(3) is bonded to one V(1), one Fe(1), one Ag(1), and one Ag(2) atom to form distorted corner-sharing OVFeAg2 trigonal pyramids. In the second O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Fe(1), and one Ag(2) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to one V(1), one Ag(1), and two equivalent Ag(2) atoms. In the fourth O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Fe(1), and one Ag(2) atom.
V2FeAg3O8 crystallizes in the monoclinic C2/c space group. V(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form VO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with five equivalent Ag(2)O5 trigonal bipyramids, and corners with two equivalent Ag(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 29-58°. The V(1)-O(1) bond length is 1.73 Å. The V(1)-O(2) bond length is 1.74 Å. The V(1)-O(3) bond length is 1.79 Å. The V(1)-O(4) bond length is 1.77 Å. Fe(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with six equivalent V(1)O4 tetrahedra, corners with two equivalent Ag(2)O5 trigonal bipyramids, corners with two equivalent Ag(1)O4 trigonal pyramids, and edges with two equivalent Ag(2)O5 trigonal bipyramids. Both Fe(1)-O(2) bond lengths are 2.03 Å. Both Fe(1)-O(3) bond lengths are 2.06 Å. Both Fe(1)-O(4) bond lengths are 2.00 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form distorted AgO4 trigonal pyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent V(1)O4 tetrahedra, and corners with six equivalent Ag(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 69°. Both Ag(1)-O(1) bond lengths are 2.44 Å. Both Ag(1)-O(3) bond lengths are 2.35 Å. In the second Ag site, Ag(2) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted AgO5 trigonal bipyramids that share  a cornercorner with one Fe(1)O6 octahedra, corners with five equivalent V(1)O4 tetrahedra, corners with two equivalent Ag(2)O5 trigonal bipyramids, corners with three equivalent Ag(1)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. The Ag(2)-O(2) bond length is 2.56 Å. The Ag(2)-O(3) bond length is 2.56 Å. The Ag(2)-O(4) bond length is 2.43 Å. There is one shorter (2.34 Å) and one longer (2.57 Å) Ag(2)-O(1) bond length. There are four inequivalent O sites. In the first O site, O(3) is bonded to one V(1), one Fe(1), one Ag(1), and one Ag(2) atom to form distorted corner-sharing OVFeAg2 trigonal pyramids. In the second O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Fe(1), and one Ag(2) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to one V(1), one Ag(1), and two equivalent Ag(2) atoms. In the fourth O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Fe(1), and one Ag(2) atom.