Co3H20(C3O)12 crystallizes in the cubic Im-3 space group. The structure consists of a Co3H20(C3O)12 framework. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form distorted CoO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O5 square pyramid, and  a faceface with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 65°. The Co(1)-O(3) bond length is 1.77 Å. The Co(1)-O(5) bond length is 2.14 Å. Both Co(1)-O(1) bond lengths are 2.06 Å. Both Co(1)-O(4) bond lengths are 2.18 Å. In the second Co site, Co(2) is bonded to one O(3) and four equivalent O(2) atoms to form corner-sharing CoO5 square pyramids. The corner-sharing octahedral tilt angles are 57°. The Co(2)-O(3) bond length is 2.12 Å. All Co(2)-O(2) bond lengths are 2.05 Å. There are nine 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 1.55 Å. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.20 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 1.42 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 1.33 Å. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.42 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(8) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-C(8) bond length is 1.51 Å. In the sixth C site, C(6) is bonded in a single-bond geometry to one C(5) and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(4) atom. The C(7)-H(4) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(5) and two equivalent C(9) atoms. There is one shorter (1.36 Å) and one longer (1.42 Å) C(8)-C(9) bond length. In the ninth C site, C(9) is bonded in a single-bond geometry to two equivalent C(8) and one H(5) atom. The C(9)-H(5) bond length is 0.93 Å. There are five 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in an L-shaped geometry to two equivalent Co(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Co(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(1) atom. In the fourth O site, O(3) is bonded in a trigonal planar geometry to one Co(2) and two equivalent Co(1) atoms. In the fifth O site, O(4) is bonded in an L-shaped geometry to two equivalent Co(1) atoms. Linkers: 8 [O]C(=O)c1ccc(-c2cc(-c3ccc(C([O])=O)cc3)cc(-c3ccc(C([O])=O)cc3)c2)cc1. Metal clusters: 3 [C]1O[Co]23O[C]O[Co]45(O1)OO[Co](O[C]O2)(O[C]O3)(O4)O[Co]123O[C]O[Co]4(O[C]O[Co](O[C]O4)(OO1)(O2)O5)O[C]O3. RCSR code: the. The MOF has largest included sphere 16.83 A, density 0.81 g/cm3, surface area 3933.54 m2/g, accessible volume 0.80 cm3/g