Ag2CuP2O7 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded in a 6-coordinate geometry to one O(2), two equivalent O(3), and three equivalent O(4) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ag(1), one Cu(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ag(1), one Cu(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Ag(1) and one P(1) atom.
Ag2CuP2O7 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded in a 6-coordinate geometry to one O(2), two equivalent O(3), and three equivalent O(4) atoms. The Ag(1)-O(2) bond length is 2.42 Å. There is one shorter (2.56 Å) and one longer (2.81 Å) Ag(1)-O(3) bond length. There are a spread of Ag(1)-O(4) bond distances ranging from 2.37-2.74 Å. Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Cu(1)-O(2) bond lengths are 1.94 Å. Both Cu(1)-O(3) bond lengths are 1.97 Å. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. The P(1)-O(1) bond length is 1.63 Å. The P(1)-O(2) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.55 Å. The P(1)-O(4) bond length is 1.52 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ag(1), one Cu(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ag(1), one Cu(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Ag(1) and one P(1) atom.