CoH28(C7N2)4 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four CoH28(C7N2)4 clusters. Co(1) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent N(3) atoms. Both Co(1)-N(1) bond lengths are 2.15 Å. Both Co(1)-N(3) bond lengths are 2.13 Å. There are fourteen inequivalent C sites. In the first C site, C(13) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(14) atom. The C(13)-C(11) bond length is 1.50 Å. The C(13)-C(12) bond length is 1.39 Å. The C(13)-C(14) bond length is 1.38 Å. In the second C site, C(14) is bonded in a distorted single-bond geometry to one C(13) and one H(14) atom. The C(14)-H(14) bond length is 0.93 Å. In the third C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(1) atom. The C(1)-N(1) bond length is 1.31 Å. The C(1)-N(2) bond length is 1.34 Å. The C(1)-H(1) bond length is 0.93 Å. In the fourth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(2) atom. The C(2)-N(1) bond length is 1.36 Å. The C(2)-H(2) bond length is 0.93 Å. In the fifth C site, C(3) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(3) atom. The C(3)-N(2) bond length is 1.36 Å. The C(3)-H(3) bond length is 0.93 Å. In the sixth C site, C(4) is bonded in a 3-coordinate geometry to one C(5); one N(2); and two equivalent H(4,5) atoms. The C(4)-C(5) bond length is 1.51 Å. The C(4)-N(2) bond length is 1.46 Å. Both C(4)-H(4,5) bond lengths are 0.97 Å. In the seventh C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-C(7) bond length is 1.39 Å. In the eighth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(6) atom. The C(6)-H(6) bond length is 0.93 Å. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to one C(5) and one H(7) atom. The C(7)-H(7) bond length is 0.93 Å. In the tenth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(8) atom. The C(8)-N(3) bond length is 1.35 Å. The C(8)-H(8) bond length is 0.93 Å. In the eleventh C site, C(9) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(9) atom. The C(9)-N(3) bond length is 1.31 Å. The C(9)-N(4) bond length is 1.33 Å. The C(9)-H(9) bond length is 0.93 Å. In the twelfth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one N(4) and one H(10) atom. The C(10)-N(4) bond length is 1.36 Å. The C(10)-H(10) bond length is 0.93 Å. In the thirteenth C site, C(11) is bonded in a 3-coordinate geometry to one C(13); one N(4); and two equivalent H(11,12) atoms. The C(11)-N(4) bond length is 1.47 Å. Both C(11)-H(11,12) bond lengths are 0.97 Å. In the fourteenth C site, C(12) is bonded in a distorted single-bond geometry to one C(13) and one H(13) atom. The C(12)-H(13) bond length is 0.93 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Co(1), one C(1), and one C(2) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Co(1), one C(8), and one C(9) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(9) atom. There are twelve 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(4,5) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(9) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(10) atom. In the tenth H site, H(11,12) is bonded in a single-bond geometry to one C(11) atom. In the eleventh H site, H(13) is bonded in a single-bond geometry to one C(12) atom. In the twelfth H site, H(14) is bonded in a single-bond geometry to one C(14) atom. Linkers: 8 c1cn(Cc2ccc(Cn3ccnc3)cc2)cn1. Metal clusters: 4 [Co]. The MOF has largest included sphere 7.47 A, density 0.47 g/cm3, surface area 5577.80 m2/g, accessible volume 1.62 cm3/g