VAgP2O7 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. Ag(1) is bonded in a 3-coordinate geometry to one O(2), one O(4), and one O(6) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-48°. In the second P site, P(2) is bonded to one O(2), one O(3), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-52°. There are seven inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(2) atom. In the third O site, O(7) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(1) is bonded in a 2-coordinate geometry to one V(1) and one P(1) atom. In the fifth O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(2) atom. In the sixth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(1) and one P(2) atom. In the seventh O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(1) atom.
VAgP2O7 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. The V(1)-O(1) bond length is 2.01 Å. The V(1)-O(2) bond length is 2.02 Å. The V(1)-O(3) bond length is 2.06 Å. The V(1)-O(4) bond length is 2.05 Å. The V(1)-O(5) bond length is 2.04 Å. The V(1)-O(6) bond length is 2.11 Å. Ag(1) is bonded in a 3-coordinate geometry to one O(2), one O(4), and one O(6) atom. The Ag(1)-O(2) bond length is 2.50 Å. The Ag(1)-O(4) bond length is 2.41 Å. The Ag(1)-O(6) bond length is 2.50 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-48°. The P(1)-O(1) bond length is 1.53 Å. The P(1)-O(4) bond length is 1.55 Å. The P(1)-O(5) bond length is 1.50 Å. The P(1)-O(7) bond length is 1.63 Å. In the second P site, P(2) is bonded to one O(2), one O(3), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-52°. The P(2)-O(2) bond length is 1.53 Å. The P(2)-O(3) bond length is 1.53 Å. The P(2)-O(6) bond length is 1.54 Å. The P(2)-O(7) bond length is 1.63 Å. There are seven inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(2) atom. In the third O site, O(7) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(1) is bonded in a 2-coordinate geometry to one V(1) and one P(1) atom. In the fifth O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(2) atom. In the sixth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(1) and one P(2) atom. In the seventh O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Ag(1), and one P(1) atom.