AgC5H3(NO)2 crystallizes in the orthorhombic Pna2_1 space group. Ag(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), and two equivalent O(2) atoms. The Ag(1)-N(1) bond length is 2.25 Å. The Ag(1)-N(2) bond length is 2.19 Å. There is one shorter (2.34 Å) and one longer (2.60 Å) Ag(1)-O(2) bond length. There are five inequivalent C sites. In the first C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(5)-C(1) bond length is 1.52 Å. The C(5)-O(1) bond length is 1.26 Å. The C(5)-O(2) bond length is 1.28 Å. In the second 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)-N(1) bond length is 1.35 Å. In the third 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 fourth 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 fifth 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. There are two 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. 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 two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one C(5) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Ag(1) and one C(5) atom. Linkers: 4 [O]C(=O)c1cnccn1. Metal clusters: 4 [Ag]. The MOF has largest included sphere 1.42 A, density 2.78 g/cm3, surface area 2639.26 m2/g, accessible volume 0.04 cm3/g