Ag3C12H5(NO2)4 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a rectangular see-saw-like geometry to one N(1), one N(3), one N(4), and one O(5) atom. The Ag(1)-N(1) bond length is 2.20 Å. The Ag(1)-N(3) bond length is 2.41 Å. The Ag(1)-N(4) bond length is 2.26 Å. The Ag(1)-O(5) bond length is 2.47 Å. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one N(2), one O(1), and two equivalent O(7) atoms. The Ag(2)-N(2) bond length is 2.24 Å. The Ag(2)-O(1) bond length is 2.44 Å. There is one shorter (2.27 Å) and one longer (2.45 Å) Ag(2)-O(7) bond length. In the third Ag site, Ag(3) is bonded in a 4-coordinate geometry to one O(2), one O(5), one O(6), and one O(8) atom. The Ag(3)-O(2) bond length is 2.20 Å. The Ag(3)-O(5) bond length is 2.30 Å. The Ag(3)-O(6) bond length is 2.75 Å. The Ag(3)-O(8) bond length is 2.44 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.52 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(2) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-N(2) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one N(1) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-N(1) bond length is 1.35 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(4)-O(3) bond length is 1.23 Å. The C(4)-O(4) bond length is 1.32 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(6), one N(1), and one H(2) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-N(1) bond length is 1.34 Å. The C(5)-H(2) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one N(2), and one H(3) atom. The C(6)-N(2) bond length is 1.34 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(8), one O(5), and one O(6) atom. The C(7)-C(8) bond length is 1.51 Å. The C(7)-O(5) bond length is 1.28 Å. The C(7)-O(6) bond length is 1.26 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one N(4) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-N(4) bond length is 1.35 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10), one C(8), and one N(3) atom. The C(9)-C(10) bond length is 1.51 Å. The C(9)-N(3) bond length is 1.34 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(7), and one O(8) atom. The C(10)-O(7) bond length is 1.27 Å. The C(10)-O(8) bond length is 1.27 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(12), one N(3), and one H(4) atom. The C(11)-C(12) bond length is 1.39 Å. The C(11)-N(3) bond length is 1.34 Å. The C(11)-H(4) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(11), one N(4), and one H(5) atom. The C(12)-N(4) bond length is 1.34 Å. The C(12)-H(5) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Ag(1), one C(3), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ag(2), one C(2), and one C(6) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(1), one C(11), and one C(9) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Ag(1), one C(12), and one C(8) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(4) and one O(8) atom. The H(1)-O(4) bond length is 1.04 Å. The H(1)-O(8) bond length is 1.50 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(5) 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(11) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(12) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ag(2) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Ag(3) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one C(4) and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Ag(1), one Ag(3), and one C(7) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Ag(3) and one C(7) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Ag(2) and one C(10) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ag(3), one C(10), and one H(1) atom. Linkers: 4 [O]C(=O)c1nccnc1C(=O)O ,4 [O]C(=O)c1nccnc1C([O])=O. Metal clusters: 12 [Ag]. The MOF has largest included sphere 1.87 A, density 2.99 g/cm3, surface area 2307.65 m2/g, accessible volume 0.04 cm3/g