NiC12H14(NO2)2 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four NiC12H14(NO2)2 clusters. Ni(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent O(1), and two equivalent O(2) atoms. Both Ni(1)-N(1) bond lengths are 2.05 Å. Both Ni(1)-O(1) bond lengths are 2.06 Å. Both Ni(1)-O(2) bond lengths are 2.28 Å. There are six inequivalent C sites. In the first C site, C(2) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(2)-C(1) bond length is 1.49 Å. The C(2)-O(1) bond length is 1.28 Å. The C(2)-O(2) bond length is 1.28 Å. In the second C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(2), and one H(3) atom. The C(3)-N(1) bond length is 1.48 Å. The C(3)-H(2) bond length is 1.10 Å. The C(3)-H(3) bond length is 1.10 Å. In the third C site, C(4) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(4), and one H(5) atom. The C(4)-N(1) bond length is 1.48 Å. The C(4)-H(4) bond length is 1.10 Å. The C(4)-H(5) bond length is 1.10 Å. In the fourth C site, C(5) is bonded in a distorted single-bond geometry to one C(1) and one H(6) atom. The C(5)-C(1) bond length is 1.40 Å. The C(5)-H(6) bond length is 1.09 Å. In the fifth C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(5), and one C(6) atom. The C(1)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1) and one H(7) atom. The C(6)-H(7) bond length is 1.09 Å. N(1) is bonded in a 4-coordinate geometry to one Ni(1), one C(3), one C(4), and one H(1) atom. The N(1)-H(1) bond length is 1.04 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(6) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Ni(1) and one C(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ni(1) and one C(2) atom. Linkers: 2 [O]C(=O)c1ccc(C([O])=O)cc1 ,2 C1CNCCN1. Metal clusters: 2 [NH][Ni]12([NH])(O[C]O1)O[C]O2. The MOF has largest included sphere 2.69 A, density 1.63 g/cm3, surface area 4170.79 m2/g, accessible volume 0.15 cm3/g