Co5C30H24(N2O)12 crystallizes in the triclinic P-1 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a tetrahedral geometry to one N(11), one N(3), one O(3), and one O(5) atom. The Co(1)-N(11) bond length is 1.99 Å. The Co(1)-N(3) bond length is 1.99 Å. The Co(1)-O(3) bond length is 1.92 Å. The Co(1)-O(5) bond length is 1.93 Å. In the second Co site, Co(2) is bonded in a square pyramidal geometry to one N(1), one N(10), one N(6), one O(1), and one O(2) atom. The Co(2)-N(1) bond length is 2.08 Å. The Co(2)-N(10) bond length is 2.07 Å. The Co(2)-N(6) bond length is 2.08 Å. The Co(2)-O(1) bond length is 2.16 Å. The Co(2)-O(2) bond length is 2.18 Å. In the third Co site, Co(3) is bonded in an octahedral geometry to two equivalent N(2), two equivalent N(5), and two equivalent N(9) atoms. Both Co(3)-N(2) bond lengths are 2.12 Å. Both Co(3)-N(5) bond lengths are 2.16 Å. Both Co(3)-N(9) bond lengths are 2.13 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.52 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.26 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(7) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-C(7) bond length is 1.39 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(1) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(1) bond length is 0.93 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(9) atom. The C(4)-C(5) bond length is 1.35 Å. The C(4)-C(9) bond length is 1.52 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(2) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-H(2) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.36 Å. The C(6)-C(8) bond length is 1.49 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(3) atom. The C(7)-H(3) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(5), and one O(6) atom. The C(8)-O(5) bond length is 1.28 Å. The C(8)-O(6) bond length is 1.23 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(9)-O(3) bond length is 1.27 Å. The C(9)-O(4) bond length is 1.22 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(6), one N(7), and one N(8) atom. The C(10)-N(6) bond length is 1.34 Å. The C(10)-N(7) bond length is 1.34 Å. The C(10)-N(8) bond length is 1.32 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one N(5), one N(7), and one H(4) atom. The C(11)-N(5) bond length is 1.29 Å. The C(11)-N(7) bond length is 1.35 Å. The C(11)-H(4) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one N(10), one N(11), and one N(12) atom. The C(12)-N(10) bond length is 1.36 Å. The C(12)-N(11) bond length is 1.33 Å. The C(12)-N(12) bond length is 1.36 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one N(11), one N(9), and one H(5) atom. The C(13)-N(11) bond length is 1.35 Å. The C(13)-N(9) bond length is 1.27 Å. The C(13)-H(5) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one N(2), one N(3), and one N(4) atom. The C(14)-N(2) bond length is 1.32 Å. The C(14)-N(3) bond length is 1.37 Å. The C(14)-N(4) bond length is 1.38 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(6) atom. The C(15)-N(1) bond length is 1.31 Å. The C(15)-N(3) bond length is 1.35 Å. The C(15)-H(6) bond length is 0.93 Å. There are twelve inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Co(2), one C(15), and one N(2) atom. The N(1)-N(2) bond length is 1.38 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Co(3), one C(14), and one N(1) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Co(1), one C(14), and one C(15) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(14) and two equivalent H(7,8) atoms. Both N(4)-H(7,8) bond lengths are 0.86 Å. In the fifth N site, N(5) is bonded in a 3-coordinate geometry to one Co(3), one C(11), and one N(6) atom. The N(5)-N(6) bond length is 1.38 Å. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Co(2), one C(10), and one N(5) atom. In the seventh N site, N(7) is bonded in a water-like geometry to one C(10) and one C(11) atom. In the eighth N site, N(8) is bonded in a trigonal planar geometry to one C(10) and two equivalent H(9,10) atoms. Both N(8)-H(9,10) bond lengths are 0.86 Å. In the ninth N site, N(9) is bonded in a 3-coordinate geometry to one Co(3), one C(13), and one N(10) atom. The N(9)-N(10) bond length is 1.40 Å. In the tenth N site, N(10) is bonded in a distorted trigonal planar geometry to one Co(2), one C(12), and one N(9) atom. In the eleventh N site, N(11) is bonded in a trigonal planar geometry to one Co(1), one C(12), and one C(13) atom. In the twelfth N site, N(12) is bonded in a trigonal planar geometry to one C(12) and two equivalent H(11,12) atoms. Both N(12)-H(11,12) bond lengths are 0.86 Å. There are nine 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(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(13) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(15) atom. In the seventh H site, H(7,8) is bonded in a single-bond geometry to one N(4) atom. In the eighth H site, H(9,10) is bonded in a single-bond geometry to one N(8) atom. In the ninth H site, H(11,12) is bonded in a single-bond geometry to one N(12) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Co(2) and one C(1) atom. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one Co(2) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(9) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(9) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(8) atom. Linkers: 1 NC1=NN=C[N]1 ,1 NC1=N[N]C=N1 ,1 Nc1nncn1[Co]1(n2cnnc2N)OC(=O)c2cc(C([O])=O)cc(c2)C(=O)O[Co](n2cnnc2N)(n2cnnc2N)OC(=O)c2cc(C([O])=O)cc(c2)C(=O)O1. Metal clusters: 1 [C]1O[Co]23(N=N[Co]45(N=N2)(N=N3)N=N[Co]2(N=N4)(N=N5)O[C]O2)O1. The MOF has largest included sphere 6.25 A, density 1.21 g/cm3, surface area 3475.23 m2/g, accessible volume 0.38 cm3/g