FeAg2H8(C2N)8 crystallizes in the monoclinic C2/m space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in an octahedral geometry to two equivalent N(1), two equivalent N(3), and two equivalent N(4) atoms. Both Fe(1)-N(1) bond lengths are 1.97 Å. Both Fe(1)-N(3) bond lengths are 1.88 Å. Both Fe(1)-N(4) bond lengths are 1.89 Å. In the second Fe site, Fe(2) is bonded in an octahedral geometry to two equivalent N(2) and four equivalent N(5) atoms. Both Fe(2)-N(2) bond lengths are 1.97 Å. All Fe(2)-N(5) bond lengths are 1.88 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a bent 150 degrees geometry to one C(11) and one C(13) atom. The Ag(1)-C(11) bond length is 2.02 Å. The Ag(1)-C(13) bond length is 2.03 Å. In the second Ag site, Ag(2) is bonded in a distorted linear geometry to two equivalent C(12) atoms. Both Ag(2)-C(12) bond lengths are 2.03 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(6), one C(7), and one C(9) atom. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.40 Å. The C(1)-C(9) bond length is 1.47 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(10) and two equivalent C(8) atoms. The C(2)-C(10) bond length is 1.48 Å. Both C(2)-C(8) bond lengths are 1.40 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(6), one N(1), and one H(1) atom. The C(3)-C(6) bond length is 1.39 Å. The C(3)-N(1) bond length is 1.35 Å. The C(3)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one N(1) and one H(2) atom. The C(4)-N(1) bond length is 1.36 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(8), one N(2), and one H(3) atom. The C(5)-C(8) bond length is 1.39 Å. The C(5)-N(2) bond length is 1.35 Å. The C(5)-H(3) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(4) atom. 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(1) and one H(5) atom. The C(7)-H(5) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(2), one C(5), and one H(6) atom. The C(8)-H(6) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(1), one N(6), and one N(7) atom. The C(9)-N(6) bond length is 1.35 Å. The C(9)-N(7) bond length is 1.35 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(2) and two equivalent N(6) atoms. Both C(10)-N(6) bond lengths are 1.35 Å. In the eleventh C site, C(11) is bonded in a bent 150 degrees geometry to one Ag(1) and one N(3) atom. The C(11)-N(3) bond length is 1.17 Å. In the twelfth C site, C(12) is bonded in a linear geometry to one Ag(2) and one N(4) atom. The C(12)-N(4) bond length is 1.17 Å. In the thirteenth C site, C(13) is bonded in a bent 150 degrees geometry to one Ag(1) and one N(5) atom. The C(13)-N(5) bond length is 1.17 Å. There are seven inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Fe(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 Fe(2) and two equivalent C(5) atoms. In the third N site, N(3) is bonded in a linear geometry to one Fe(1) and one C(11) atom. In the fourth N site, N(4) is bonded in a linear geometry to one Fe(1) and one C(12) atom. In the fifth N site, N(5) is bonded in a linear geometry to one Fe(2) and one C(13) atom. In the sixth N site, N(6) is bonded in a bent 120 degrees geometry to one C(10) and one C(9) atom. In the seventh N site, N(7) is bonded in a bent 120 degrees geometry to two equivalent C(9) atoms. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) 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. Linkers: 1 n1ccc(cc1)C1=NC(=[N]=C([N]1)c1ccncc1)c1ccncc1. Metal clusters: 3 [Fe]. The MOF has largest included sphere 4.04 A, density 1.71 g/cm3, surface area 3115.13 m2/g, accessible volume 0.26 cm3/g