Ag2C9N3H6O4 crystallizes in the triclinic P-1 space group. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted see-saw-like geometry to one N(5), one O(2), one O(5), and one O(7) atom. The Ag(1)-N(5) bond length is 2.28 Å. The Ag(1)-O(2) bond length is 2.42 Å. The Ag(1)-O(5) bond length is 2.49 Å. The Ag(1)-O(7) bond length is 2.34 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one N(2), one O(1), and one O(8) atom. The Ag(2)-N(2) bond length is 2.35 Å. The Ag(2)-O(1) bond length is 2.23 Å. The Ag(2)-O(8) bond length is 2.28 Å. In the third Ag site, Ag(3) is bonded in a 3-coordinate geometry to one N(6), one O(3), and one O(6) atom. The Ag(3)-N(6) bond length is 2.14 Å. The Ag(3)-O(3) bond length is 2.56 Å. The Ag(3)-O(6) bond length is 2.15 Å. In the fourth Ag site, Ag(4) is bonded in a distorted linear geometry to one N(3) and one O(3) atom. The Ag(4)-N(3) bond length is 2.13 Å. The Ag(4)-O(3) bond length is 2.11 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(3) atom. The C(1)-N(1) bond length is 1.34 Å. The C(1)-N(2) bond length is 1.36 Å. The C(1)-N(3) bond length is 1.37 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(1) atom. The C(2)-N(3) bond length is 1.35 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(4) and one H(2) atom. The C(3)-C(4) bond length is 1.39 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(2), and one H(3) atom. The C(4)-N(2) 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 trigonal planar geometry to one N(4), one N(5), and one N(6) atom. The C(5)-N(4) bond length is 1.34 Å. The C(5)-N(5) bond length is 1.36 Å. The C(5)-N(6) bond length is 1.36 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(7), one N(6), and one H(4) atom. The C(6)-C(7) bond length is 1.38 Å. The C(6)-N(6) bond length is 1.34 Å. The C(6)-H(4) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(6), one C(8), and one H(5) atom. The C(7)-C(8) bond length is 1.39 Å. The C(7)-H(5) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one N(5), and one H(6) atom. The C(8)-N(5) bond length is 1.34 Å. The C(8)-H(6) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(3), and one O(4) atom. The C(9)-C(10) bond length is 1.51 Å. The C(9)-O(3) bond length is 1.31 Å. The C(9)-O(4) bond length is 1.24 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(9) atom. The C(10)-C(11) bond length is 1.41 Å. The C(10)-C(12) bond length is 1.40 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(13) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(13) bond length is 1.51 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(10), one C(11), and one H(7) atom. The C(12)-H(7) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(1), and one O(2) atom. The C(13)-O(1) bond length is 1.28 Å. The C(13)-O(2) bond length is 1.27 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(15), one C(16), and one H(8) atom. The C(14)-C(15) bond length is 1.40 Å. The C(14)-C(16) bond length is 1.40 Å. The C(14)-H(8) bond length is 1.09 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(17) atom. The C(15)-C(16) bond length is 1.41 Å. The C(15)-C(17) bond length is 1.50 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(14), one C(15), and one C(18) atom. The C(16)-C(18) bond length is 1.50 Å. In the seventeenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(15), one O(5), and one O(6) atom. The C(17)-O(5) bond length is 1.25 Å. The C(17)-O(6) bond length is 1.30 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(7), and one O(8) atom. The C(18)-O(7) bond length is 1.26 Å. The C(18)-O(8) bond length is 1.29 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 H(10), and one H(9) atom. The N(1)-H(10) bond length is 1.02 Å. The N(1)-H(9) bond length is 1.03 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Ag(2), one C(1), and one C(4) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(4), one C(1), and one C(2) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(5), one H(11), and one H(12) atom. The N(4)-H(11) bond length is 1.02 Å. The N(4)-H(12) bond length is 1.01 Å. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Ag(1), one C(5), and one C(8) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Ag(3), one C(5), and one C(6) atom. There are twelve 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. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(14) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one N(1) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one N(1) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one N(4) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one N(4) 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(13) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ag(1) and one C(13) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ag(3), one Ag(4), and one C(9) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(9) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Ag(1) and one C(17) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ag(3) and one C(17) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Ag(1) and one C(18) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one Ag(2) and one C(18) atom. Linkers: 2 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1C([O])=O ,2 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1[C]=O ,4 Nc1ncccn1. Metal clusters: 2 O=[C]O[Ag].[C]1O[Ag]2[Ag]34O[C]O[Ag]23(O1)O[C]O4. The MOF has largest included sphere 2.52 A, density 2.68 g/cm3, surface area 2432.89 m2/g, accessible volume 0.09 cm3/g