CoH24(C5N3)6 is alpha structured and crystallizes in the trigonal R-3c space group. The structure is zero-dimensional and consists of six CoH24(C5N3)6 clusters. Co(1) is bonded in an octahedral geometry to six equivalent N(1) atoms. All Co(1)-N(1) bond lengths are 2.16 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.35 Å. The C(1)-N(1) bond length is 1.36 Å. The C(1)-H(1) bond length is 0.93 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(2), and one H(2) atom. The C(2)-N(2) bond length is 1.37 Å. The C(2)-H(2) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(3) atom. The C(3)-N(1) bond length is 1.31 Å. The C(3)-N(2) bond length is 1.35 Å. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(5), one N(2), and one N(3) atom. The C(4)-C(5) bond length is 1.36 Å. The C(4)-N(2) bond length is 1.42 Å. The C(4)-N(3) bond length is 1.29 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(4) atom. The C(5)-H(4) bond length is 0.93 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Co(1), one C(1), and one C(3) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(4) atom. In the third N site, N(3) is bonded in a single-bond geometry to one C(4) atom. There are four 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(2) is bonded in a single-bond geometry to one C(2) 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(5) atom. Linkers: 18 c1cn(-c2ccc(-n3ccnc3)nn2)cn1. Metal clusters: 6 [Co]. The MOF has largest included sphere 7.57 A, density 0.71 g/cm3, surface area 4889.39 m2/g, accessible volume 0.90 cm3/g