AgC4H2(NO)3 crystallizes in the monoclinic P2_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(2), one N(6), and one O(6) atom. The Ag(1)-N(2) bond length is 2.14 Å. The Ag(1)-N(6) bond length is 2.14 Å. The Ag(1)-O(6) bond length is 2.70 Å. In the second Ag site, Ag(2) is bonded in a distorted T-shaped geometry to one N(3), one N(5), and one O(3) atom. The Ag(2)-N(3) bond length is 2.15 Å. The Ag(2)-N(5) bond length is 2.16 Å. The Ag(2)-O(3) bond length is 2.58 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one N(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(3) bond length is 1.41 Å. The C(1)-N(1) bond length is 1.42 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(2), and one H(1) atom. The C(2)-N(2) bond length is 1.32 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(3), and one H(2) atom. The C(3)-N(3) bond length is 1.32 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one N(2), one N(3), and one O(1) atom. The C(4)-N(2) bond length is 1.40 Å. The C(4)-N(3) bond length is 1.39 Å. The C(4)-O(1) bond length is 1.24 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(6), one C(7), and one N(4) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.40 Å. The C(5)-N(4) bond length is 1.42 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(5), and one H(3) atom. The C(6)-N(5) bond length is 1.32 Å. The C(6)-H(3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(6), and one H(4) atom. The C(7)-N(6) bond length is 1.32 Å. The C(7)-H(4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one N(5), one N(6), and one O(4) atom. The C(8)-N(5) bond length is 1.40 Å. The C(8)-N(6) bond length is 1.41 Å. The C(8)-O(4) bond length is 1.24 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one O(2), and one O(3) atom. The N(1)-O(2) bond length is 1.25 Å. The N(1)-O(3) bond length is 1.25 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Ag(1), one C(2), and one C(4) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(2), one C(3), and one C(4) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(5), one O(5), and one O(6) atom. The N(4)-O(5) bond length is 1.26 Å. The N(4)-O(6) bond length is 1.25 Å. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Ag(2), one C(6), and one C(8) atom. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Ag(1), one C(7), and one C(8) atom. There are four 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(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one C(4) atom. In the second O site, O(2) is bonded in a single-bond geometry to one N(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ag(2) and one N(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one N(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Ag(1) and one N(4) atom. Linkers: 4 O=C1N=C[C]([N+](=O)[O-])C=N1. Metal clusters: 4 [Ag].[O][N][O]. The MOF has largest included sphere 1.93 A, density 2.64 g/cm3, surface area 2750.60 m2/g, accessible volume 0.07 cm3/g