HgC8H10(N2O)2NO3 is Indium-derived structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four nitric acid molecules and four HgC8H10(N2O)2 clusters. In each HgC8H10(N2O)2 cluster, Hg(1) is bonded in a distorted single-bond geometry to one N(7) atom. The Hg(1)-N(7) bond length is 2.23 Å. There are eight inequivalent C sites. In the first C site, C(1,2) is bonded in a tetrahedral geometry to one N(1,2); one H(3,4); one H(5,6); and one H(7,8) atom. The C(1,2)-N(1,2) bond length is 1.46 Å. The C(1,2)-H(3,4) bond length is 1.09 Å. The C(1,2)-H(5,6) bond length is 1.10 Å. The C(1,2)-H(7,8) bond length is 1.09 Å. In the second C site, C(3,4) is bonded in a trigonal planar geometry to one N(1,2); one N(3); and one O(1,2) atom. The C(3,4)-N(1,2) bond length is 1.40 Å. The C(3,4)-N(3) bond length is 1.40 Å. The C(3,4)-O(1,2) bond length is 1.24 Å. In the third C site, C(5,6) is bonded in a tetrahedral geometry to one N(3); one H(11,12); one H(13,14); and one H(9,10) atom. The C(5,6)-N(3) bond length is 1.46 Å. The C(5,6)-H(11,12) bond length is 1.09 Å. The C(5,6)-H(13,14) bond length is 1.10 Å. The C(5,6)-H(9,10) bond length is 1.10 Å. In the fourth C site, C(7) is bonded in a distorted trigonal planar geometry to one C(9), one N(3), and one N(7) atom. The C(7)-C(9) bond length is 1.39 Å. The C(7)-N(3) bond length is 1.37 Å. The C(7)-N(7) bond length is 1.37 Å. In the fifth C site, C(9) is bonded in a distorted single-bond geometry to one C(11,12); one C(7); and one N(5) atom. The C(9)-C(11,12) bond length is 1.43 Å. The C(9)-N(5) bond length is 1.39 Å. In the sixth C site, C(11,12) is bonded in a distorted bent 120 degrees geometry to one C(9); one N(1,2); and one O(3,4) atom. The C(11,12)-N(1,2) bond length is 1.42 Å. The C(11,12)-O(3,4) bond length is 1.24 Å. In the seventh C site, C(13,14) is bonded in a tetrahedral geometry to one N(5); one H(15,16); one H(17,18); and one H(19,20) atom. The C(13,14)-N(5) bond length is 1.46 Å. The C(13,14)-H(15,16) bond length is 1.10 Å. The C(13,14)-H(17,18) bond length is 1.09 Å. The C(13,14)-H(19,20) bond length is 1.10 Å. In the eighth C site, C(15) is bonded in a trigonal planar geometry to one N(5), one N(7), and one H(1) atom. The C(15)-N(5) bond length is 1.34 Å. The C(15)-N(7) bond length is 1.35 Å. The C(15)-H(1) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1,2) is bonded in a trigonal planar geometry to one C(1,2); one C(11,12); and one C(3,4) atom. In the second N site, N(3) is bonded in a trigonal planar geometry to one C(3,4); one C(5,6); and one C(7) atom. In the third N site, N(5) is bonded in a trigonal planar geometry to one C(13,14); one C(15); and one C(9) atom. In the fourth N site, N(7) is bonded in a distorted trigonal planar geometry to one Hg(1), one C(15), and one C(7) atom. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(15) atom. In the second H site, H(3,4) is bonded in a single-bond geometry to one C(1,2) atom. In the third H site, H(5,6) is bonded in a single-bond geometry to one C(1,2) atom. In the fourth H site, H(7,8) is bonded in a single-bond geometry to one C(1,2) atom. In the fifth H site, H(9,10) is bonded in a single-bond geometry to one C(5,6) atom. In the sixth H site, H(11,12) is bonded in a single-bond geometry to one C(5,6) atom. In the seventh H site, H(13,14) is bonded in a single-bond geometry to one C(5,6) atom. In the eighth H site, H(15,16) is bonded in a single-bond geometry to one C(13,14) atom. In the ninth H site, H(17,18) is bonded in a single-bond geometry to one C(13,14) atom. In the tenth H site, H(19,20) is bonded in a single-bond geometry to one C(13,14) atom. There are two inequivalent O sites. In the first O site, O(1,2) is bonded in a single-bond geometry to one C(3,4) atom. In the second O site, O(3,4) is bonded in a single-bond geometry to one C(11,12) atom. Linkers: 4 [O][N+](=O)[O-]. Metal clusters: 4 [Hg]. The MOF has largest included sphere 1.79 A, density 2.57 g/cm3, surface area 3095.13 m2/g, accessible volume 0.09 cm3/g