Hg(CN)2CHC5H3N3 is Indium-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 02329_fluka molecules, two C5H3N3 clusters, and four Hg(CN)2 clusters. In each C5H3N3 cluster, there are five inequivalent C sites. In the first C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(4) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(4) bond length is 1.09 Å. In the second C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one C(6), and one N(1) atom. The C(5)-C(6) bond length is 1.47 Å. The C(5)-N(1) bond length is 1.35 Å. In the third C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one N(2), and one N(3) atom. The C(6)-N(2) bond length is 1.35 Å. The C(6)-N(3) bond length is 1.35 Å. In the fourth C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the fifth C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(2) atom. The C(2)-H(2) bond length is 1.09 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one C(1) and one C(5) atom. In the second N site, N(2) is bonded in a distorted single-bond geometry to one C(6) and one N(3) atom. The N(2)-N(3) bond length is 1.31 Å. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to one C(6) and one N(2) atom. There are three 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(4) is bonded in a single-bond geometry to one C(4) atom. In each Hg(CN)2 cluster, Hg(1) is bonded in a distorted linear geometry to one C(7) and one C(8) atom. The Hg(1)-C(7) bond length is 2.05 Å. The Hg(1)-C(8) bond length is 2.05 Å. There are two inequivalent C sites. In the first C site, C(7) is bonded in a linear geometry to one Hg(1) and one N(4) atom. The C(7)-N(4) bond length is 1.17 Å. In the second C site, C(8) is bonded in a distorted linear geometry to one Hg(1) and one N(5) atom. The C(8)-N(5) bond length is 1.17 Å. There are two inequivalent N sites. In the first N site, N(4) is bonded in a single-bond geometry to one C(7) atom. In the second N site, N(5) is bonded in a single-bond geometry to one C(8) atom. Linkers: 1 c1ccc(-c2nnc(-c3ccccn3)nn2)nc1 ,2 [C]#N. Metal clusters: . The MOF has largest included sphere 2.81 A, density 2.56 g/cm3, surface area 3134.16 m2/g, accessible volume 0.11 cm3/g