Co3C22H14(N2O3)4 crystallizes in the monoclinic C2/c space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a tetrahedral geometry to one N(1), one N(3), one O(1), and one O(4) atom. The Co(1)-N(1) bond length is 1.97 Å. The Co(1)-N(3) bond length is 1.97 Å. The Co(1)-O(1) bond length is 1.91 Å. The Co(1)-O(4) bond length is 1.91 Å. In the second Co site, Co(2) is bonded in a tetrahedral geometry to two equivalent N(2) and two equivalent O(5) atoms. Both Co(2)-N(2) bond lengths are 1.94 Å. Both Co(2)-O(5) bond lengths are 2.00 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.25 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(9) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(9) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(4) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-H(4) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(6) atom. The C(4)-C(5) bond length is 1.46 Å. The C(4)-C(6) bond length is 1.41 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(5), and one O(6) atom. The C(5)-O(5) bond length is 1.25 Å. The C(5)-O(6) bond length is 1.34 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4), one C(7), and one H(5) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-H(5) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6), one C(8), and one C(9) atom. The C(7)-C(8) bond length is 1.51 Å. The C(7)-C(9) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a bent 120 degrees geometry to one C(7), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.24 Å. The C(8)-O(4) bond length is 1.30 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(2), one C(7), and one H(6) atom. The C(9)-H(6) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(7) atom. The C(10)-N(2) bond length is 1.37 Å. The C(10)-N(3) bond length is 1.32 Å. The C(10)-H(7) bond length is 1.08 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(4) atom. The C(11)-N(1) bond length is 1.35 Å. The C(11)-N(2) bond length is 1.38 Å. The C(11)-N(4) bond length is 1.34 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Co(1), one C(11), and one N(3) atom. The N(1)-N(3) bond length is 1.39 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Co(2), one C(10), and one C(11) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Co(1), one C(10), and one N(1) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(11), one H(2), and one H(3) atom. The N(4)-H(2) bond length is 1.04 Å. The N(4)-H(3) bond length is 1.01 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(6) atom. The H(1)-O(6) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one N(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one N(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(10) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Co(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Co(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(2) and one C(5) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one C(5) and one H(1) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(C(=O)O)c1 ,4 NC1=NN=C[N]1. Metal clusters: 2 O=[C]O[Co]1(O[C]=O)[N][N][Co](O[C]=O)(O[C]=O)[N][N]1 ,2 O[C]O[Co]O[C]O. The MOF has largest included sphere 9.22 A, density 0.89 g/cm3, surface area 3782.29 m2/g, accessible volume 0.71 cm3/g