CoC8H4O4(C4NH2)2 is Indium-derived structured and crystallizes in the cubic Im-3m space group. The structure is zero-dimensional and consists of sixteen C4NH2 clusters and six CoC8H4O4 clusters. In each C4NH2 cluster, there are three inequivalent C sites. In the first C site, C(2) is bonded in a single-bond geometry to one C(5) and one H(2) atom. The C(2)-C(5) bond length is 1.35 Å. The C(2)-H(2) bond length is 0.93 Å. In the second C site, C(5) is bonded in a trigonal planar geometry to one C(6) and two equivalent C(2) atoms. The C(5)-C(6) bond length is 1.48 Å. In the third C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5) and two equivalent N(1) atoms. Both C(6)-N(1) bond lengths are 1.31 Å. N(1) is bonded in a bent 120 degrees geometry to two equivalent C(6) atoms. H(2) is bonded in a single-bond geometry to one C(2) atom. In each CoC8H4O4 cluster, Co(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. All Co(1)-O(1) bond lengths are 1.96 Å. There are three inequivalent C sites. In the first C site, C(3) is bonded in a bent 120 degrees geometry to one C(4) and two equivalent O(1) atoms. The C(3)-C(4) bond length is 1.48 Å. Both C(3)-O(1) bond lengths are 1.19 Å. In the second C site, C(4) is bonded in a trigonal planar geometry to one C(3) and two equivalent C(1) atoms. Both C(4)-C(1) bond lengths are 1.38 Å. In the third C site, C(1) is bonded in a distorted single-bond geometry to one C(4) and one H(1) atom. The C(1)-H(1) bond length is 0.93 Å. H(1) is bonded in a single-bond geometry to one C(1) atom. O(1) is bonded in a bent 150 degrees geometry to one Co(1) and one C(3) atom. Linkers: 9 [O]C(=O)c1ccc(cc1)C1=NC(=[N]=C([N]1)c1ccc(cc1)C(=O)[O])c1ccc(cc1)C(=O)[O]. Metal clusters: 3 [C]1O[Co]23O[C]O[Co]4(O1)O[C]O[Co]1(O[C]O4)O[C]O[Co](O[C]O2)(O[C]O3)O[C]O1. RCSR code: the. The MOF has largest included sphere 15.37 A, density 0.85 g/cm3, surface area 4121.80 m2/g, accessible volume 0.75 cm3/g