HgC14H14(N2I)2 is BCT5 structured and crystallizes in the tetragonal P4_2/n space group. The structure is zero-dimensional and consists of four HgC14H14(N2I)2 clusters. Hg(1) is bonded in a distorted trigonal pyramidal geometry to two equivalent N(1) and two equivalent I(1) atoms. Both Hg(1)-N(1) bond lengths are 2.48 Å. Both Hg(1)-I(1) bond lengths are 2.70 Å. There are seven inequivalent C sites. In the first C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(2) atom. The C(2)-C(1) bond length is 1.39 Å. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(2) bond length is 1.09 Å. In the second C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(2), and one H(5) atom. The C(6)-C(3) bond length is 1.47 Å. The C(6)-N(2) bond length is 1.28 Å. The C(6)-H(5) bond length is 1.10 Å. In the third 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)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the fourth C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(5)-N(1) bond length is 1.35 Å. The C(5)-H(4) bond length is 1.09 Å. In the sixth C site, C(7) is bonded in a distorted trigonal non-coplanar geometry to one N(2), one H(6), and one H(7) atom. The C(7)-N(2) bond length is 1.45 Å. The C(7)-H(6) bond length is 1.10 Å. The C(7)-H(7) bond length is 1.11 Å. In the seventh C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(3) atom. The C(4)-H(3) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a bent 120 degrees geometry to one C(6) and one C(7) atom. In the second N site, N(1) is bonded in a distorted trigonal planar geometry to one Hg(1), one C(1), and one C(5) atom. There are seven 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(5) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the seventh H site, H(4) is bonded in a single-bond geometry to one C(5) atom. I(1) is bonded in a single-bond geometry to one Hg(1) atom. Linkers: 1 C(=N/CC/N=C/c1ccncc1)\c1ccncc1. Metal clusters: . The MOF has largest included sphere 2.59 A, density 2.50 g/cm3, surface area 3195.86 m2/g, accessible volume 0.13 cm3/g