AgC5N5H3O3 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded in a 5-coordinate geometry to one N(1), one N(2), one N(3), one O(1), and one O(3) atom. The Ag(1)-N(1) bond length is 2.23 Å. The Ag(1)-N(2) bond length is 2.23 Å. The Ag(1)-N(3) bond length is 2.51 Å. The Ag(1)-O(1) bond length is 2.40 Å. The Ag(1)-O(3) bond length is 2.63 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(5), and one N(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(5) bond length is 1.47 Å. The C(1)-N(1) bond length is 1.35 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(2), and one H(1) atom. The C(2)-N(2) bond length is 1.34 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(4), one N(2), and one H(2) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-N(2) bond length is 1.35 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one H(3) atom. The C(4)-N(1) bond length is 1.34 Å. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(3), and one N(4) atom. The C(5)-N(3) bond length is 1.35 Å. The C(5)-N(4) bond length is 1.35 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Ag(1), one C(1), and one C(4) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ag(1), one C(2), and one C(3) atom. In the third N site, N(3) is bonded in a distorted single-bond geometry to one Ag(1), one C(5), and one N(4) atom. The N(3)-N(4) bond length is 1.31 Å. In the fourth N site, N(4) is bonded in a distorted bent 120 degrees geometry to one C(5) and one N(3) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The N(5)-O(1) bond length is 1.29 Å. The N(5)-O(2) bond length is 1.25 Å. The N(5)-O(3) bond length is 1.27 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Ag(1) and one N(5) atom. In the second O site, O(2) is bonded in a single-bond geometry to one N(5) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ag(1) and one N(5) atom. Linkers: 1 c1cnc(-c2nnc(-c3cnccn3)nn2)cn1 ,1 c1cnc(C2=N[N]C(c3cnccn3)=N[N]2)cn1. Metal clusters: 4 [Ag]. The MOF has largest included sphere 1.80 A, density 2.49 g/cm3, surface area 2923.33 m2/g, accessible volume 0.10 cm3/g