Co3C18H9O11(CH)2 crystallizes in the orthorhombic P2_12_12 space group. The structure consists of sixteen 02329_fluka molecules inside a Co3C18H9O11 framework. In the Co3C18H9O11 framework, there are six inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(12), one O(13), one O(15), one O(4), and one O(7) atom to form edge-sharing CoO6 octahedra. The Co(1)-O(1) bond length is 2.06 Å. The Co(1)-O(12) bond length is 2.04 Å. The Co(1)-O(13) bond length is 2.16 Å. The Co(1)-O(15) bond length is 2.28 Å. The Co(1)-O(4) bond length is 2.04 Å. The Co(1)-O(7) bond length is 2.10 Å. In the second Co site, Co(2) is bonded to one O(10), one O(13), one O(15), one O(17), one O(19), and one O(2) atom to form CoO6 octahedra that share  a cornercorner with one Co(5)O4 tetrahedra and  an edgeedge with one Co(1)O6 octahedra. The Co(2)-O(10) bond length is 2.12 Å. The Co(2)-O(13) bond length is 2.23 Å. The Co(2)-O(15) bond length is 2.14 Å. The Co(2)-O(17) bond length is 2.01 Å. The Co(2)-O(19) bond length is 2.02 Å. The Co(2)-O(2) bond length is 2.11 Å. In the third Co site, Co(3) is bonded in a distorted rectangular see-saw-like geometry to one O(18), one O(2), one O(20), and one O(22) atom. The Co(3)-O(18) bond length is 2.04 Å. The Co(3)-O(2) bond length is 2.07 Å. The Co(3)-O(20) bond length is 2.06 Å. The Co(3)-O(22) bond length is 2.09 Å. In the fourth Co site, Co(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(11), one O(3), and one O(5) atom. The Co(4)-O(1) bond length is 2.08 Å. The Co(4)-O(11) bond length is 2.05 Å. The Co(4)-O(3) bond length is 2.06 Å. The Co(4)-O(5) bond length is 2.06 Å. In the fifth Co site, Co(5) is bonded to one O(16), one O(2), one O(21), and one O(8) atom to form corner-sharing CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 71°. The Co(5)-O(16) bond length is 1.96 Å. The Co(5)-O(2) bond length is 1.94 Å. The Co(5)-O(21) bond length is 1.94 Å. The Co(5)-O(8) bond length is 1.94 Å. In the sixth Co site, Co(6) is bonded in a 4-coordinate geometry to one O(1), one O(14), one O(6), and one O(9) atom. The Co(6)-O(1) bond length is 2.04 Å. The Co(6)-O(14) bond length is 1.99 Å. The Co(6)-O(6) bond length is 2.00 Å. The Co(6)-O(9) bond length is 1.99 Å. There are thirty-six inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(3) bond length is 1.26 Å. The C(1)-O(4) bond length is 1.27 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 1.37 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(5) is bonded in a distorted single-bond geometry to one C(6) and one H(5) atom. The C(5)-C(6) bond length is 1.36 Å. The C(5)-H(5) bond length is 0.93 Å. In the fifth 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 1.39 Å. The C(6)-C(8) bond length is 1.49 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(6) atom. The C(7)-H(6) bond length is 0.93 Å. In the seventh 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 1.21 Å. The C(8)-O(6) bond length is 1.23 Å. In the eighth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(7), and one O(8) atom. The C(9)-C(10) bond length is 1.52 Å. The C(9)-O(7) bond length is 1.20 Å. The C(9)-O(8) bond length is 1.27 Å. In the ninth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(9) atom. The C(10)-C(11) bond length is 1.41 Å. The C(10)-C(15) bond length is 1.37 Å. In the tenth C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(7) atom. The C(11)-C(12) bond length is 1.35 Å. The C(11)-H(7) bond length is 0.93 Å. In the eleventh C site, C(12) is bonded in a distorted single-bond geometry to one C(11), one C(13), and one H(8) atom. The C(12)-C(13) bond length is 1.41 Å. The C(12)-H(8) bond length is 0.93 Å. In the twelfth C site, C(13) is bonded in a distorted single-bond geometry to one C(12), one C(14), and one H(9) atom. The C(13)-C(14) bond length is 1.39 Å. The C(13)-H(9) bond length is 0.93 Å. In the thirteenth C site, C(14) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(16) atom. The C(14)-C(15) bond length is 1.40 Å. The C(14)-C(16) bond length is 1.49 Å. In the fourteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(10), one C(14), and one H(10) atom. The C(15)-H(10) bond length is 0.93 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(10), and one O(9) atom. The C(16)-O(10) bond length is 1.23 Å. The C(16)-O(9) bond length is 1.27 Å. In the sixteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(18), one O(11), and one O(12) atom. The C(17)-C(18) bond length is 1.49 Å. The C(17)-O(11) bond length is 1.28 Å. The C(17)-O(12) bond length is 1.25 Å. In the seventeenth C site, C(18) is bonded in a trigonal planar geometry to one C(17), one C(19), and one C(23) atom. The C(18)-C(19) bond length is 1.40 Å. The C(18)-C(23) bond length is 1.37 Å. In the eighteenth C site, C(19) is bonded in a distorted single-bond geometry to one C(18) and one H(11) atom. The C(19)-H(11) bond length is 0.93 Å. In the nineteenth C site, C(21) is bonded in a distorted single-bond geometry to one C(22) and one H(13) atom. The C(21)-C(22) bond length is 1.35 Å. The C(21)-H(13) bond length is 0.93 Å. In the twentieth C site, C(22) is bonded in a trigonal planar geometry to one C(21), one C(23), and one C(24) atom. The C(22)-C(23) bond length is 1.40 Å. The C(22)-C(24) bond length is 1.49 Å. In the twenty-first C site, C(23) is bonded in a distorted single-bond geometry to one C(18), one C(22), and one H(14) atom. The C(23)-H(14) bond length is 0.93 Å. In the twenty-second C site, C(24) is bonded in a distorted bent 120 degrees geometry to one C(22), one O(13), and one O(14) atom. The C(24)-O(13) bond length is 1.26 Å. The C(24)-O(14) bond length is 1.25 Å. In the twenty-third C site, C(25) is bonded in a distorted bent 120 degrees geometry to one C(26), one O(15), and one O(16) atom. The C(25)-C(26) bond length is 1.48 Å. The C(25)-O(15) bond length is 1.28 Å. The C(25)-O(16) bond length is 1.25 Å. In the twenty-fourth C site, C(26) is bonded in a trigonal planar geometry to one C(25), one C(27), and one C(31) atom. The C(26)-C(27) bond length is 1.38 Å. The C(26)-C(31) bond length is 1.40 Å. In the twenty-fifth C site, C(27) is bonded in a distorted single-bond geometry to one C(26) and one H(15) atom. The C(27)-H(15) bond length is 0.93 Å. In the twenty-sixth C site, C(29) is bonded in a distorted single-bond geometry to one C(30) and one H(17) atom. The C(29)-C(30) bond length is 1.40 Å. The C(29)-H(17) bond length is 0.93 Å. In the twenty-seventh C site, C(30) is bonded in a trigonal planar geometry to one C(29), one C(31), and one C(32) atom. The C(30)-C(31) bond length is 1.38 Å. The C(30)-C(32) bond length is 1.50 Å. In the twenty-eighth C site, C(31) is bonded in a distorted single-bond geometry to one C(26), one C(30), and one H(18) atom. The C(31)-H(18) bond length is 0.93 Å. In the twenty-ninth C site, C(32) is bonded in a distorted bent 120 degrees geometry to one C(30), one O(17), and one O(18) atom. The C(32)-O(17) bond length is 1.25 Å. The C(32)-O(18) bond length is 1.27 Å. In the thirtieth C site, C(33) is bonded in a distorted bent 120 degrees geometry to one C(34), one O(19), and one O(20) atom. The C(33)-C(34) bond length is 1.51 Å. The C(33)-O(19) bond length is 1.26 Å. The C(33)-O(20) bond length is 1.25 Å. In the thirty-first C site, C(34) is bonded in a trigonal planar geometry to one C(33), one C(35), and one C(39) atom. The C(34)-C(35) bond length is 1.36 Å. The C(34)-C(39) bond length is 1.38 Å. In the thirty-second C site, C(35) is bonded in a single-bond geometry to one C(34) and one H(19) atom. The C(35)-H(19) bond length is 0.93 Å. In the thirty-third C site, C(37) is bonded in a distorted single-bond geometry to one C(38) and one H(21) atom. The C(37)-C(38) bond length is 1.39 Å. The C(37)-H(21) bond length is 0.93 Å. In the thirty-fourth C site, C(38) is bonded in a trigonal planar geometry to one C(37), one C(39), and one C(40) atom. The C(38)-C(39) bond length is 1.38 Å. The C(38)-C(40) bond length is 1.52 Å. In the thirty-fifth C site, C(39) is bonded in a distorted single-bond geometry to one C(34), one C(38), and one H(22) atom. The C(39)-H(22) bond length is 0.93 Å. In the thirty-sixth C site, C(40) is bonded in a distorted bent 120 degrees geometry to one C(38), one O(21), and one O(22) atom. The C(40)-O(21) bond length is 1.25 Å. The C(40)-O(22) bond length is 1.23 Å. There are eighteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(13) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(15) atom. In the tenth H site, H(11) is bonded in a single-bond geometry to one C(19) atom. In the eleventh H site, H(13) is bonded in a single-bond geometry to one C(21) atom. In the twelfth H site, H(14) is bonded in a single-bond geometry to one C(23) atom. In the thirteenth H site, H(15) is bonded in a single-bond geometry to one C(27) atom. In the fourteenth H site, H(17) is bonded in a single-bond geometry to one C(29) atom. In the fifteenth H site, H(18) is bonded in a single-bond geometry to one C(31) atom. In the sixteenth H site, H(19) is bonded in a single-bond geometry to one C(35) atom. In the seventeenth H site, H(21) is bonded in a single-bond geometry to one C(37) atom. In the eighteenth H site, H(22) is bonded in a single-bond geometry to one C(39) atom. There are twenty-two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Co(1), one Co(4), one Co(6), and one H(1) atom. In the second O site, O(2) is bonded in a distorted tetrahedral geometry to one Co(2), one Co(3), one Co(5), and one H(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Co(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Co(4) and one C(8) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Co(6) and one C(8) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(9) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Co(5) and one C(9) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Co(6) and one C(16) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Co(2) and one C(16) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Co(4) and one C(17) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(17) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one C(24) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Co(6) and one C(24) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Co(1), one Co(2), and one C(25) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Co(5) and one C(25) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 150 degrees geometry to one Co(2) and one C(32) atom. In the eighteenth O site, O(18) is bonded in a distorted single-bond geometry to one Co(3) and one C(32) atom. In the nineteenth O site, O(19) is bonded in a bent 120 degrees geometry to one Co(2) and one C(33) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Co(3) and one C(33) atom. In the twenty-first O site, O(21) is bonded in a bent 120 degrees geometry to one Co(5) and one C(40) atom. In the twenty-second O site, O(22) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one C(40) atom. Linkers: 20 [O]C(=O)c1cccc(C([O])=O)c1. Metal clusters: 4 O[Co@]12O[C]O[Co]3O[C]O[Co](O[C]O3)(O[C]O1)O[C]O[Co@]1(O)O[C]O[Co]3O[C]O[Co](O[C]O3)(O[C]O2)O[C]O1. RCSR code: pcu. The MOF has largest included sphere 5.56 A, density 1.22 g/cm3, surface area 3320.21 m2/g, accessible volume 0.43 cm3/g