AgC9N4H8 crystallizes in the trigonal R-3 space group. Ag(1) is bonded in a rectangular see-saw-like geometry to one N(1), one N(2), one N(3), and one N(4) atom. The Ag(1)-N(1) bond length is 2.32 Å. The Ag(1)-N(2) bond length is 2.37 Å. The Ag(1)-N(3) bond length is 2.49 Å. The Ag(1)-N(4) bond length is 2.26 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 0.95 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(4), and one H(2) atom. The C(2)-C(3) bond length is 1.35 Å. The C(2)-N(4) bond length is 1.30 Å. The C(2)-H(2) bond length is 0.95 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(9), and one N(3) atom. The C(3)-C(9) bond length is 1.53 Å. The C(3)-N(3) bond length is 1.32 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(3) atom. The C(4)-N(3) bond length is 1.29 Å. The C(4)-H(3) bond length is 0.95 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(4) atom. The C(5)-N(2) bond length is 1.31 Å. The C(5)-H(4) bond length is 0.95 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one N(1) atom. The C(6)-C(7) bond length is 1.38 Å. The C(6)-C(9) bond length is 1.48 Å. The C(6)-N(1) bond length is 1.34 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(6), one N(2), and one H(5) atom. The C(7)-N(2) bond length is 1.32 Å. The C(7)-H(5) bond length is 0.95 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one N(4) and one H(6) atom. The C(8)-N(4) bond length is 1.36 Å. The C(8)-H(6) bond length is 0.95 Å. In the ninth C site, C(9) is bonded in a water-like geometry to one C(3), one C(6), one H(7), and one H(8) atom. The C(9)-H(7) bond length is 0.99 Å. The C(9)-H(8) bond length is 0.99 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(1), and one C(6) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ag(1), one C(5), and one C(7) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Ag(1), one C(3), and one C(4) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Ag(1), one C(2), 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 C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) 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(5) 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(9) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. Linkers: 18 c1cnc(Cc2cnccn2)cn1. Metal clusters: 18 [Ag]. The MOF has largest included sphere 8.95 A, density 1.02 g/cm3, surface area 3891.60 m2/g, accessible volume 0.64 cm3/g