FeAg2(C4N3)2 crystallizes in the orthorhombic Cmcm space group. The structure consists of a FeAg2(C4N3)2 framework. Fe(1) is bonded in an octahedral geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Both Fe(1)-N(1) bond lengths are 1.98 Å. Both Fe(1)-N(2) bond lengths are 1.91 Å. Both Fe(1)-N(3) bond lengths are 1.98 Å. Ag(1) is bonded in a linear geometry to one C(3) and one C(4) atom. The Ag(1)-C(3) bond length is 2.08 Å. The Ag(1)-C(4) bond length is 2.03 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(1) and one N(1) atom. The C(1)-C(1) bond length is 1.38 Å. The C(1)-N(1) bond length is 1.32 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one N(1) atom. The C(2)-N(1) bond length is 1.35 Å. In the third C site, C(3) is bonded in a linear geometry to one Ag(1) and one N(2) atom. The C(3)-N(2) bond length is 1.16 Å. In the fourth C site, C(4) is bonded in a linear geometry to one Ag(1) and one N(3) atom. The C(4)-N(3) bond length is 1.14 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Fe(1), one C(1), and one C(2) atom. In the second N site, N(2) is bonded in a linear geometry to one Fe(1) and one C(3) atom. In the third N site, N(3) is bonded in a linear geometry to one Fe(1) and one C(4) atom. Linkers: 4 [c]1[c]n[c][c]n1. Metal clusters: 4 [Fe]. The MOF has largest included sphere 3.83 A, density 2.16 g/cm3, surface area 2907.03 m2/g, accessible volume 0.13 cm3/g