CoH8(C2N)4(H5(C4N)2)4 is Indium-derived structured and crystallizes in the orthorhombic Fddd space group. The structure is zero-dimensional and consists of eight CoH8(C2N)4 clusters and sixteen H5(C4N)2 clusters. In each CoH8(C2N)4 cluster, Co(1) is bonded in a square co-planar geometry to four equivalent N(1) atoms. All Co(1)-N(1) bond lengths are 2.17 Å. There are two inequivalent C sites. In the first C site, C(8) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(5) atom. The C(8)-N(1) bond length is 1.33 Å. The C(8)-H(5) bond length is 0.93 Å. In the second C site, C(10) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(7) atom. The C(10)-N(1) bond length is 1.34 Å. The C(10)-H(7) bond length is 0.93 Å. N(1) is bonded in a trigonal planar geometry to one Co(1), one C(10), and one C(8) atom. There are two inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the second H site, H(7) is bonded in a single-bond geometry to one C(10) atom. In each H5(C4N)2 cluster, there are eight inequivalent C sites. In the first C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(7) atom. The C(2)-C(1) bond length is 1.48 Å. The C(2)-C(4) bond length is 1.38 Å. The C(2)-C(7) bond length is 1.39 Å. In the second C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(5), and one C(9) atom. The C(1)-C(5) bond length is 1.41 Å. The C(1)-C(9) bond length is 1.34 Å. In the third C site, C(4) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one N(2) atom. The C(4)-C(3) bond length is 1.39 Å. The C(4)-N(2) bond length is 1.42 Å. In the fourth C site, C(5) is bonded in a single-bond geometry to one C(1) and one H(2) atom. The C(5)-H(2) bond length is 0.93 Å. In the fifth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(3) atom. The C(6)-N(3) bond length is 1.29 Å. The C(6)-H(3) bond length is 0.93 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(4) atom. The C(7)-H(4) bond length is 0.93 Å. In the seventh C site, C(9) is bonded in a distorted single-bond geometry to one C(1) and one H(6) atom. The C(9)-H(6) bond length is 0.93 Å. In the eighth C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(3), and one H(1) atom. The C(3)-N(3) bond length is 1.34 Å. The C(3)-H(1) bond length is 0.93 Å. There are two inequivalent N sites. In the first N site, N(3) is bonded in a bent 120 degrees geometry to one C(3) and one C(6) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one C(4) and one N(2) atom. The N(2)-N(2) bond length is 1.24 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. Linkers: 17 c1cc(-c2ccncc2[N][N]c2cnccc2-c2ccncc2)ccn1. Metal clusters: 8 [Co]. The MOF has largest included sphere 4.64 A, density 1.06 g/cm3, surface area 4967.51 m2/g, accessible volume 0.37 cm3/g