AgC4N3H4I crystallizes in the monoclinic P2_1/c 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(1), one N(4), and one I(2) atom. The Ag(1)-N(1) bond length is 2.26 Å. The Ag(1)-N(4) bond length is 2.26 Å. The Ag(1)-I(2) bond length is 3.09 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one N(3), one N(6), and one I(1) atom. The Ag(2)-N(3) bond length is 2.19 Å. The Ag(2)-N(6) bond length is 2.20 Å. The Ag(2)-I(1) bond length is 3.19 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(4), and one I(1) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-C(4) bond length is 1.39 Å. The C(1)-I(1) bond length is 2.08 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(3), and one H(3) atom. The C(2)-N(3) bond length is 1.33 Å. The C(2)-H(3) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(3) atom. The C(3)-N(1) bond length is 1.36 Å. The C(3)-N(2) bond length is 1.33 Å. The C(3)-N(3) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(1), one N(1), and one H(4) atom. The C(4)-N(1) bond length is 1.33 Å. The C(4)-H(4) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(6), one N(6), and one H(7) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-N(6) bond length is 1.32 Å. The C(5)-H(7) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one I(2) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-I(2) bond length is 2.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(6), one N(4), and one H(8) atom. The C(7)-N(4) bond length is 1.33 Å. The C(7)-H(8) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one N(4), one N(5), and one N(6) atom. The C(8)-N(4) bond length is 1.36 Å. The C(8)-N(5) bond length is 1.32 Å. The C(8)-N(6) bond length is 1.35 Å. There are six 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(4) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(3), one H(1), and one H(2) atom. The N(2)-H(1) bond length is 0.86 Å. The N(2)-H(2) bond length is 0.86 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(2), one C(2), and one C(3) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Ag(1), one C(7), and one C(8) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one C(8), one H(5), and one H(6) atom. The N(5)-H(5) bond length is 0.86 Å. The N(5)-H(6) bond length is 0.86 Å. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Ag(2), one C(5), and one C(8) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(5) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(5) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(7) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a water-like geometry to one Ag(2) and one C(1) atom. In the second I site, I(2) is bonded in a water-like geometry to one Ag(1) and one C(6) atom. Linkers: 8 Nc1ncc(I)cn1. Metal clusters: 8 [Ag]. The MOF has largest included sphere 4.98 A, density 1.89 g/cm3, surface area 2671.06 m2/g, accessible volume 0.27 cm3/g