Ag2C9N3H8O5 crystallizes in the triclinic P-1 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one N(3), one O(1), and one O(4) atom. The Ag(1)-N(3) bond length is 2.25 Å. The Ag(1)-O(1) bond length is 2.22 Å. The Ag(1)-O(4) bond length is 2.35 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one N(2), one O(2), and one O(3) atom. The Ag(2)-N(2) bond length is 2.17 Å. The Ag(2)-O(2) bond length is 2.60 Å. The Ag(2)-O(3) bond length is 2.18 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(7), one N(2), and one H(1) atom. The C(1)-C(7) bond length is 1.38 Å. The C(1)-N(2) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(4), and one O(5) atom. The C(2)-C(9) bond length is 1.51 Å. The C(2)-O(4) bond length is 1.27 Å. The C(2)-O(5) bond length is 1.28 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(2), and one H(2) atom. The C(3)-C(5) bond length is 1.42 Å. The C(3)-N(2) bond length is 1.33 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(6), one C(9), and one H(3) atom. The C(4)-C(6) bond length is 1.40 Å. The C(4)-C(9) bond length is 1.40 Å. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one N(3) atom. The C(5)-N(1) bond length is 1.35 Å. The C(5)-N(3) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(4), one C(8), and one C(9) atom. The C(6)-C(8) bond length is 1.50 Å. The C(6)-C(9) bond length is 1.41 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(1), one N(3), and one H(4) atom. The C(7)-N(3) bond length is 1.35 Å. The C(7)-H(4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(8)-O(1) bond length is 1.29 Å. The C(8)-O(2) bond length is 1.27 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(5), one H(5), and one H(6) atom. The N(1)-H(5) bond length is 1.04 Å. The N(1)-H(6) bond length is 1.01 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ag(2), one C(1), and one C(3) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(1), one C(5), and one C(7) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) 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. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(1) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(1) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(1) and one O(3) atom. The H(7)-O(1) bond length is 1.74 Å. The H(7)-O(3) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a linear geometry to one O(3) and one O(5) atom. The H(8)-O(3) bond length is 1.02 Å. The H(8)-O(5) bond length is 1.56 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ag(1), one C(8), and one H(7) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ag(2) and one C(8) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Ag(2), one H(7), and one H(8) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ag(1) and one C(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one C(2) and one H(8) atom. Linkers: 1 Nc1cnccn1 ,1 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1C([O])=O. Metal clusters: 4 [Ag]. The MOF has largest included sphere 3.09 A, density 2.37 g/cm3, surface area 2708.94 m2/g, accessible volume 0.11 cm3/g