CoH10(C9O2)2 is Indium-like structured and crystallizes in the trigonal P3_221 space group. The structure is zero-dimensional and consists of three CoH10(C9O2)2 clusters. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form distorted corner-sharing CoO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 69°. The Co(1)-O(1) bond length is 2.06 Å. The Co(1)-O(2) bond length is 2.23 Å. The Co(1)-O(3) bond length is 1.97 Å. The Co(1)-O(5) bond length is 1.97 Å. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form corner-sharing CoO6 octahedra. Both Co(2)-O(2) bond lengths are 2.10 Å. Both Co(2)-O(4) bond lengths are 2.14 Å. Both Co(2)-O(6) bond lengths are 2.12 Å. There are twenty-seven 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 1.50 Å. The C(1)-O(1) bond length is 1.28 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(7) atom. The C(2)-C(3) bond length is 1.34 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) and one H(1) atom. The C(3)-H(1) bond length is 0.95 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-H(2) bond length is 0.95 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(22), one C(4), and one C(6) atom. The C(5)-C(22) bond length is 1.46 Å. The C(5)-C(6) bond length is 1.42 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(6)-H(3) bond length is 0.95 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 0.95 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(3), and one O(4) atom. The C(8)-C(9) bond length is 1.51 Å. The C(8)-O(3) bond length is 1.28 Å. The C(8)-O(4) bond length is 1.23 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(8) atom. The C(9)-C(10) bond length is 1.39 Å. The C(9)-C(14) bond length is 1.37 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(9), and one H(5) atom. The C(10)-C(11) bond length is 1.37 Å. The C(10)-H(5) bond length is 0.95 Å. In the eleventh C site, C(11) is bonded in a single-bond geometry to one C(10), one C(12), and one H(6) atom. The C(11)-C(12) bond length is 1.42 Å. The C(11)-H(6) bond length is 0.95 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(24) atom. The C(12)-C(13) bond length is 1.38 Å. The C(12)-C(24) bond length is 1.49 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(12), one C(14), and one H(7) atom. The C(13)-C(14) bond length is 1.38 Å. The C(13)-H(7) bond length is 0.95 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13), one C(9), and one H(8) atom. The C(14)-H(8) bond length is 0.95 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(5), and one O(6) atom. The C(15)-C(16) bond length is 1.52 Å. The C(15)-O(5) bond length is 1.24 Å. The C(15)-O(6) bond length is 1.25 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(21) atom. The C(16)-C(17) bond length is 1.43 Å. The C(16)-C(21) bond length is 1.36 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(16) and one H(9) atom. The C(17)-H(9) bond length is 0.95 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(19) and one H(10) atom. The C(18)-C(19) bond length is 1.39 Å. The C(18)-H(10) bond length is 0.95 Å. In the nineteenth C site, C(19) is bonded in a trigonal planar geometry to one C(18), one C(20), and one C(27) atom. The C(19)-C(20) bond length is 1.42 Å. The C(19)-C(27) bond length is 1.48 Å. In the twentieth C site, C(20) is bonded in a single-bond geometry to one C(19) and one H(11) atom. The C(20)-H(11) bond length is 0.95 Å. In the twenty-first C site, C(21) is bonded in a distorted single-bond geometry to one C(16) and one H(12) atom. The C(21)-H(12) bond length is 0.95 Å. In the twenty-second C site, C(22) is bonded in a trigonal planar geometry to one C(23), one C(26), and one C(5) atom. The C(22)-C(23) bond length is 1.44 Å. The C(22)-C(26) bond length is 1.38 Å. In the twenty-third C site, C(23) is bonded in a distorted single-bond geometry to one C(22), one C(24), and one H(13) atom. The C(23)-C(24) bond length is 1.40 Å. The C(23)-H(13) bond length is 0.95 Å. In the twenty-fourth C site, C(24) is bonded in a trigonal planar geometry to one C(12), one C(23), and one C(25) atom. The C(24)-C(25) bond length is 1.37 Å. In the twenty-fifth C site, C(25) is bonded in a single-bond geometry to one C(24), one C(27), and one H(14) atom. The C(25)-C(27) bond length is 1.43 Å. The C(25)-H(14) bond length is 0.95 Å. In the twenty-sixth C site, C(26) is bonded in a distorted single-bond geometry to one C(22), one C(27), and one H(15) atom. The C(26)-C(27) bond length is 1.40 Å. The C(26)-H(15) bond length is 0.95 Å. In the twenty-seventh C site, C(27) is bonded in a trigonal planar geometry to one C(19), one C(25), and one C(26) atom. There are fifteen 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(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(13) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(14) 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(18) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(20) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(21) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(23) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(25) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(26) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Co(1) and one C(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Co(1), 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(8) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(15) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Co(2) and one C(15) atom. Linkers: 6 [O]C(=O)c1ccc(-c2cc(-c3ccc(C([O])=O)cc3)cc(-c3ccc(C([O])=O)cc3)c2)cc1. Metal clusters: 3 [C]1O[Co]2O[C]O[Co]34(O1)(O[C]O2)O[C]O[Co](O[C]O3)O[C]O4. The MOF has largest included sphere 9.06 A, density 0.71 g/cm3, surface area 4439.79 m2/g, accessible volume 0.93 cm3/g