AgC3N5H2O6 crystallizes in the monoclinic P2_1/c space group. Ag(1) is bonded in a 6-coordinate geometry to one N(1), one O(3), one O(5), one O(6), and two equivalent O(1) atoms. The Ag(1)-N(1) bond length is 2.21 Å. The Ag(1)-O(3) bond length is 2.85 Å. The Ag(1)-O(5) bond length is 2.57 Å. The Ag(1)-O(6) bond length is 2.71 Å. There is one shorter (2.34 Å) and one longer (2.56 Å) Ag(1)-O(1) bond length. There are three inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(2), and one N(3) atom. The C(1)-C(2) bond length is 1.45 Å. The C(1)-N(2) bond length is 1.32 Å. The C(1)-N(3) bond length is 1.38 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.45 Å. The C(2)-N(1) bond length is 1.32 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one N(4), and one N(5) atom. The C(3)-N(4) bond length is 1.39 Å. The C(3)-N(5) bond length is 1.39 Å. There are five inequivalent N sites. In the first N site, N(3) is bonded in a distorted bent 120 degrees geometry to one C(1) and one N(3) atom. The N(3)-N(3) bond length is 1.27 Å. In the second N site, N(4) is bonded in a trigonal planar geometry to one C(3), one O(3), and one O(4) atom. The N(4)-O(3) bond length is 1.28 Å. The N(4)-O(4) bond length is 1.25 Å. In the third N site, N(5) is bonded in a trigonal planar geometry to one C(3), one O(5), and one O(6) atom. The N(5)-O(5) bond length is 1.26 Å. The N(5)-O(6) bond length is 1.27 Å. In the fourth N site, N(1) is bonded in a distorted trigonal planar geometry to one Ag(1), one C(2), and one O(2) atom. The N(1)-O(2) bond length is 1.41 Å. In the fifth N site, N(2) is bonded in a water-like geometry to one C(1) and one O(2) atom. The N(2)-O(2) bond length is 1.35 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 1.00 Å. There are six inequivalent O sites. In the first O site, O(6) is bonded in a single-bond geometry to one Ag(1) and one N(5) atom. In the second O site, O(1) is bonded in a distorted water-like geometry to two equivalent Ag(1), one H(1), and one H(2) atom. In the third O site, O(5) is bonded in a distorted single-bond geometry to one Ag(1) and one N(5) atom. In the fourth O site, O(2) is bonded in a water-like geometry to one N(1) and one N(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Ag(1) and one N(4) atom. In the sixth O site, O(4) is bonded in a single-bond geometry to one N(4) atom. Linkers: 2 O=[N+]([O-])[C](c1nonc1[N][N]c1nonc1[C]([N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-]. Metal clusters: 4 [Ag]. The MOF has largest included sphere 2.09 A, density 2.47 g/cm3, surface area 2773.28 m2/g, accessible volume 0.12 cm3/g