Co5C36H38(N13O7)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to two equivalent N(2), two equivalent N(5), and two equivalent N(9) atoms. Both Co(1)-N(2) bond lengths are 1.95 Å. Both Co(1)-N(5) bond lengths are 1.95 Å. Both Co(1)-N(9) bond lengths are 1.94 Å. In the second Co site, Co(2) is bonded in a tetrahedral geometry to one N(11), one N(3), one O(3), and one O(5) atom. The Co(2)-N(11) bond length is 1.97 Å. The Co(2)-N(3) bond length is 1.95 Å. The Co(2)-O(3) bond length is 1.91 Å. The Co(2)-O(5) bond length is 1.90 Å. In the third Co site, Co(3) is bonded in an octahedral geometry to one N(1), one N(10), one N(6), one O(1), one O(2), and one O(7) atom. The Co(3)-N(1) bond length is 2.02 Å. The Co(3)-N(10) bond length is 2.05 Å. The Co(3)-N(6) bond length is 1.96 Å. The Co(3)-O(1) bond length is 2.20 Å. The Co(3)-O(2) bond length is 2.15 Å. The Co(3)-O(7) bond length is 2.16 Å. There are eighteen 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 1.48 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.29 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 1.40 Å. The C(2)-C(7) 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(1) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(1) 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(9) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-C(9) bond length is 1.50 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar 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 1.09 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 1.40 Å. The C(6)-C(8) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(2), one C(6), and one H(3) atom. The C(7)-H(3) bond length is 1.09 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 1.30 Å. The C(8)-O(6) bond length is 1.26 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 1.29 Å. The C(9)-O(4) bond length is 1.26 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 1.37 Å. The C(10)-N(7) bond length is 1.35 Å. The C(10)-N(8) bond length is 1.35 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 1.34 Å. The C(11)-N(7) bond length is 1.34 Å. The C(11)-H(4) bond length is 1.09 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 1.35 Å. The C(12)-N(11) bond length is 1.37 Å. The C(12)-N(12) bond length is 1.35 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 1.36 Å. The C(13)-N(9) bond length is 1.33 Å. The C(13)-H(5) bond length is 1.08 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 1.35 Å. The C(14)-N(3) bond length is 1.37 Å. The C(14)-N(4) bond length is 1.34 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 1.32 Å. The C(15)-N(3) bond length is 1.36 Å. The C(15)-H(6) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one N(13), one H(7), and one O(7) atom. The C(16)-N(13) bond length is 1.34 Å. The C(16)-H(7) bond length is 1.10 Å. The C(16)-O(7) bond length is 1.26 Å. In the seventeenth C site, C(17) is bonded to one N(13), one H(10), one H(8), and one H(9) atom to form corner-sharing CH3N tetrahedra. The C(17)-N(13) bond length is 1.46 Å. The C(17)-H(10) bond length is 1.10 Å. The C(17)-H(8) bond length is 1.09 Å. The C(17)-H(9) bond length is 1.10 Å. In the eighteenth C site, C(18) is bonded to one N(13), one H(11), one H(12), and one H(13) atom to form corner-sharing CH3N tetrahedra. The C(18)-N(13) bond length is 1.46 Å. The C(18)-H(11) bond length is 1.10 Å. The C(18)-H(12) bond length is 1.10 Å. The C(18)-H(13) bond length is 1.10 Å. There are thirteen inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Co(3), 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 distorted trigonal planar geometry to one Co(1), 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(2), 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), one H(14), and one H(15) atom. The N(4)-H(14) bond length is 1.01 Å. The N(4)-H(15) bond length is 1.03 Å. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Co(1), 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(3), 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), one H(16), and one H(17) atom. The N(8)-H(16) bond length is 1.02 Å. The N(8)-H(17) bond length is 1.01 Å. In the ninth N site, N(9) is bonded in a distorted trigonal planar geometry to one Co(1), one C(13), and one N(10) atom. The N(9)-N(10) bond length is 1.38 Å. In the tenth N site, N(10) is bonded in a distorted trigonal planar geometry to one Co(3), 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(2), 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), one H(18), and one H(19) atom. The N(12)-H(18) bond length is 1.03 Å. The N(12)-H(19) bond length is 1.02 Å. In the thirteenth N site, N(13) is bonded in a trigonal planar geometry to one C(16), one C(17), and one C(18) atom. There are nineteen 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) is bonded in a single-bond geometry to one C(16) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(17) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(17) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(17) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(18) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(18) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(18) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one N(4) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one N(4) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one N(8) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one N(8) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one N(12) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one N(12) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Co(3) and one C(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Co(3) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(2) 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(2) and one C(8) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Co(3) and one C(16) atom. Linkers: 1 NC1=NN=C[N]1 ,1 NC1=NC=N[N]1 ,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: 3 [Co]. The MOF has largest included sphere 5.92 A, density 1.41 g/cm3, surface area 3661.61 m2/g, accessible volume 0.23 cm3/g