Co15C156H60(N3O13)4 crystallizes in the tetragonal P4/mbm space group. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), one O(6), and one O(7) atom to form distorted corner-sharing CoO5 tetrahedra. The Co(1)-O(1) bond length is 1.83 Å. The Co(1)-O(2) bond length is 2.46 Å. The Co(1)-O(3) bond length is 1.91 Å. The Co(1)-O(6) bond length is 1.96 Å. The Co(1)-O(7) bond length is 1.97 Å. In the second Co site, Co(2) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent N(2) atoms. Both Co(2)-N(1) bond lengths are 1.91 Å. Both Co(2)-N(2) bond lengths are 1.91 Å. In the third Co site, Co(3) is bonded to one O(7), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing CoO5 square pyramids. The Co(3)-O(7) bond length is 2.08 Å. Both Co(3)-O(4) bond lengths are 2.01 Å. Both Co(3)-O(5) bond lengths are 2.03 Å. In the fourth Co site, Co(4) is bonded in a rectangular see-saw-like geometry to two equivalent N(3) and two equivalent N(4) atoms. Both Co(4)-N(3) bond lengths are 1.95 Å. Both Co(4)-N(4) bond lengths are 2.00 Å. There are twenty-three inequivalent C sites. In the first C site, C(18) is bonded in a trigonal planar geometry to one C(17), one C(19), and one N(2) atom. The C(18)-C(17) bond length is 1.43 Å. The C(18)-C(19) bond length is 1.38 Å. The C(18)-N(2) bond length is 1.43 Å. In the second C site, C(19) is bonded in a trigonal planar geometry to one C(18), one C(20), and one C(22) atom. The C(19)-C(20) bond length is 1.40 Å. The C(19)-C(22) bond length is 1.47 Å. In the third C site, C(20) is bonded in a trigonal planar geometry to one C(19), one C(21), and one N(1) atom. The C(20)-C(21) bond length is 1.46 Å. The C(20)-N(1) bond length is 1.44 Å. In the fourth C site, C(21) is bonded in a distorted single-bond geometry to one C(20) and one H(8) atom. The C(21)-H(8) bond length is 0.95 Å. In the fifth C site, C(22) is bonded in a trigonal planar geometry to one C(19) and two equivalent C(1) atoms. Both C(22)-C(1) bond lengths are 1.37 Å. In the sixth C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(22), and one H(1) atom. The C(1)-C(2) bond length is 1.34 Å. The C(1)-H(1) bond length is 0.95 Å. In the seventh C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(23), and one C(3) atom. The C(2)-C(23) bond length is 1.37 Å. The C(2)-C(3) bond length is 1.52 Å. In the eighth C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(3)-O(1) bond length is 1.29 Å. The C(3)-O(2) bond length is 1.19 Å. In the ninth C site, C(4) is bonded in a bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(4)-C(5) bond length is 1.51 Å. The C(4)-O(3) bond length is 1.21 Å. The C(4)-O(4) bond length is 1.28 Å. In the tenth C site, C(5) is bonded in a trigonal planar geometry to one C(10), one C(4), and one C(6) atom. The C(5)-C(10) bond length is 1.38 Å. The C(5)-C(6) bond length is 1.34 Å. In the eleventh C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one C(7), and one H(2) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-H(2) bond length is 0.95 Å. In the twelfth C site, C(7) is bonded in a trigonal planar geometry to one C(11), one C(6), and one C(8) atom. The C(7)-C(11) bond length is 1.48 Å. The C(7)-C(8) bond length is 1.38 Å. In the thirteenth C site, C(8) is bonded in a distorted single-bond geometry to one C(7), one C(9), and one H(3) atom. The C(8)-C(9) bond length is 1.35 Å. The C(8)-H(3) bond length is 0.95 Å. In the fourteenth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(8) atom. The C(9)-C(10) bond length is 1.38 Å. The C(9)-C(12) bond length is 1.45 Å. In the fifteenth C site, C(10) is bonded in a distorted single-bond geometry to one C(5), one C(9), and one H(4) atom. The C(10)-H(4) bond length is 0.95 Å. In the sixteenth C site, C(11) is bonded in a bent 120 degrees geometry to one C(7), one O(5), and one O(6) atom. The C(11)-O(5) bond length is 1.21 Å. The C(11)-O(6) bond length is 1.23 Å. In the seventeenth C site, C(12) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(9) atom. The C(12)-C(13) bond length is 1.37 Å. The C(12)-C(15) bond length is 1.37 Å. In the eighteenth C site, C(13) is bonded in a trigonal planar geometry to one C(12), one C(14), and one N(3) atom. The C(13)-C(14) bond length is 1.42 Å. The C(13)-N(3) bond length is 1.42 Å. In the nineteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13) and one H(5) atom. The C(14)-H(5) bond length is 0.95 Å. In the twentieth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(12), one C(16), and one N(4) atom. The C(15)-C(16) bond length is 1.42 Å. The C(15)-N(4) bond length is 1.38 Å. In the twenty-first C site, C(16) is bonded in a distorted single-bond geometry to one C(15) and one H(6) atom. The C(16)-H(6) bond length is 0.95 Å. In the twenty-second C site, C(23) is bonded in a distorted trigonal planar geometry to two equivalent C(2) and one H(9) atom. The C(23)-H(9) bond length is 0.95 Å. In the twenty-third C site, C(17) is bonded in a distorted single-bond geometry to one C(18) and one H(7) atom. The C(17)-H(7) bond length is 0.95 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(2) and two equivalent C(20) atoms. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Co(2) and two equivalent C(18) atoms. In the third N site, N(3) is bonded in a trigonal planar geometry to one Co(4) and two equivalent C(13) atoms. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Co(4) and two equivalent C(15) atoms. There are nine inequivalent H sites. In the first H site, H(9) is bonded in a single-bond geometry to one C(23) atom. In the second H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(4) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(5) is bonded in a single-bond geometry to one C(14) atom. In the seventh H site, H(6) is bonded in a single-bond geometry to one C(16) atom. In the eighth H site, H(7) is bonded in a single-bond geometry to one C(17) atom. In the ninth H site, H(8) is bonded in a single-bond geometry to one C(21) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Co(3) and two equivalent Co(1) atoms. In the second O site, O(1) is bonded in a water-like geometry to one Co(1) and one C(3) atom. In the third O site, O(2) is bonded in a single-bond geometry to one Co(1) and one C(3) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one C(4) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Co(3) and one C(4) atom. In the sixth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one C(11) atom. In the seventh O site, O(6) is bonded in a bent 120 degrees geometry to one Co(1) and one C(11) atom. Linkers: 6 [O]C(=O)c1cc(cc(c1)C1=C2C=CC3=[N]2[Co@]24n5c1ccc5C(=C1[N]2=C(C=C1)C(=c1n4c(=C3c2cc(cc(c2)C(=O)[O])C(=O)[O])cc1)c1cc(cc(c1)C(=O)[O])C(=O)[O])c1cc(cc(c1)C(=O)[O])C(=O)[O])C(=O)[O]. Metal clusters: 8 [O][C]O[Co@]12O[C]O[Co]3(O[C]O[Co@](O[C][O])(O[C]O3)O1)O[C]O2. RCSR code: msq. The MOF has largest included sphere 9.58 A, density 0.90 g/cm3, surface area 3542.71 m2/g, accessible volume 0.69 cm3/g