K2Cd5H24(C15O8)4(CH)4 crystallizes in the orthorhombic Pbcn space group. The structure consists of sixteen 02329_fluka molecules inside a K2Cd5H24(C15O8)4 framework. In each K2Cd5H24(C15O8)4 framework, there are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent O(14), two equivalent O(16), two equivalent O(4), and two equivalent O(6) atoms. Both K(1)-O(14) bond lengths are 3.06 Å. Both K(1)-O(16) bond lengths are 2.96 Å. Both K(1)-O(4) bond lengths are 2.68 Å. Both K(1)-O(6) bond lengths are 2.83 Å. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent O(16), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms. Both K(2)-O(16) bond lengths are 2.88 Å. Both K(2)-O(6) bond lengths are 2.91 Å. Both K(2)-O(8) bond lengths are 2.99 Å. Both K(2)-O(9) bond lengths are 2.69 Å. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(12), and one O(2) atom. The Cd(1)-O(1) bond length is 2.50 Å. The Cd(1)-O(11) bond length is 2.52 Å. The Cd(1)-O(12) bond length is 2.29 Å. The Cd(1)-O(2) bond length is 2.35 Å. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to one O(15), one O(16), one O(5), and one O(6) atom. The Cd(2)-O(15) bond length is 2.30 Å. The Cd(2)-O(16) bond length is 2.48 Å. The Cd(2)-O(5) bond length is 2.25 Å. The Cd(2)-O(6) bond length is 2.65 Å. In the third Cd site, Cd(3) is bonded in a distorted hexagonal bipyramidal geometry to two equivalent O(10), two equivalent O(3), two equivalent O(4), and two equivalent O(9) atoms. Both Cd(3)-O(10) bond lengths are 2.45 Å. Both Cd(3)-O(3) bond lengths are 2.51 Å. Both Cd(3)-O(4) bond lengths are 2.39 Å. Both Cd(3)-O(9) bond lengths are 2.42 Å. There are thirty inequivalent C sites. In the first C site, C(19) is bonded in a distorted trigonal planar geometry to one C(18), one C(20), and one H(9) atom. The C(19)-C(18) bond length is 1.40 Å. The C(19)-C(20) bond length is 1.40 Å. The C(19)-H(9) bond length is 0.93 Å. In the second 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 1.52 Å. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.26 Å. In the third 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 1.39 Å. The C(2)-C(7) bond length is 1.39 Å. In the fourth C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(3) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(3) bond length is 0.93 Å. In the fifth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(8) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-C(8) bond length is 1.51 Å. In the sixth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(4) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-H(4) bond length is 0.93 Å. In the seventh C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(9) atom. The C(6)-C(7) bond length is 1.41 Å. The C(6)-C(9) bond length is 1.50 Å. In the eighth C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(5) atom. The C(7)-H(5) bond length is 0.93 Å. In the ninth C site, C(8) is bonded in a bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.26 Å. The C(8)-O(4) bond length is 1.24 Å. In the tenth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(6) atom. The C(9)-C(10) bond length is 1.42 Å. The C(9)-C(14) bond length is 1.40 Å. In the eleventh 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 1.39 Å. The C(10)-C(15) bond length is 1.51 Å. In the twelfth C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(16) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(16) bond length is 1.50 Å. In the thirteenth C site, C(12) is bonded in a distorted single-bond geometry to one C(11) and one H(6) atom. The C(12)-H(6) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a single-bond geometry to one C(9) and one H(8) atom. The C(14)-H(8) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(5), and one O(6) atom. The C(15)-O(5) bond length is 1.28 Å. The C(15)-O(6) bond length is 1.25 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(7), and one O(8) atom. The C(16)-O(7) bond length is 1.32 Å. The C(16)-O(8) bond length is 1.20 Å. In the seventeenth C site, C(17) is bonded in a bent 120 degrees geometry to one C(18), one O(10), and one O(9) atom. The C(17)-C(18) bond length is 1.50 Å. The C(17)-O(10) bond length is 1.28 Å. The C(17)-O(9) bond length is 1.23 Å. In the eighteenth C site, C(20) is bonded in a trigonal planar geometry to one C(19), one C(21), and one C(24) atom. The C(20)-C(21) bond length is 1.40 Å. The C(20)-C(24) bond length is 1.49 Å. In the nineteenth C site, C(21) is bonded in a distorted single-bond geometry to one C(20), one C(22), and one H(10) atom. The C(21)-C(22) bond length is 1.41 Å. The C(21)-H(10) 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(25) atom. The C(22)-C(23) bond length is 1.40 Å. The C(22)-C(25) bond length is 1.49 Å. In the twenty-first C site, C(24) is bonded in a distorted trigonal planar geometry to one C(20), one O(11), and one O(12) atom. The C(24)-O(11) bond length is 1.24 Å. The C(24)-O(12) bond length is 1.26 Å. In the twenty-second C site, C(25) is bonded in a trigonal planar geometry to one C(22), one C(26), and one C(30) atom. The C(25)-C(26) bond length is 1.42 Å. The C(25)-C(30) bond length is 1.39 Å. In the twenty-third C site, C(26) is bonded in a trigonal planar geometry to one C(25), one C(27), and one C(32) atom. The C(26)-C(27) bond length is 1.40 Å. The C(26)-C(32) bond length is 1.52 Å. In the twenty-fourth C site, C(27) is bonded in a trigonal planar geometry to one C(26), one C(28), and one C(31) atom. The C(27)-C(28) bond length is 1.39 Å. The C(27)-C(31) bond length is 1.49 Å. In the twenty-fifth C site, C(23) is bonded in a distorted single-bond geometry to one C(18), one C(22), and one H(11) atom. The C(23)-C(18) bond length is 1.39 Å. The C(23)-H(11) bond length is 0.93 Å. In the twenty-sixth C site, C(30) is bonded in a distorted single-bond geometry to one C(25) and one H(14) atom. The C(30)-H(14) bond length is 0.93 Å. In the twenty-seventh C site, C(31) is bonded in a distorted bent 120 degrees geometry to one C(27), one O(13), and one O(14) atom. The C(31)-O(13) bond length is 1.32 Å. The C(31)-O(14) bond length is 1.21 Å. In the twenty-eighth C site, C(32) is bonded in a distorted bent 120 degrees geometry to one C(26), one O(15), and one O(16) atom. The C(32)-O(15) bond length is 1.27 Å. The C(32)-O(16) bond length is 1.25 Å. In the twenty-ninth C site, C(28) is bonded in a distorted single-bond geometry to one C(27) and one H(12) atom. The C(28)-H(12) bond length is 0.93 Å. In the thirtieth C site, C(18) is bonded in a trigonal planar geometry to one C(17), one C(19), and one C(23) atom. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(7) atom. The H(1)-O(7) bond length is 0.84 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(13) atom. The H(2)-O(13) bond length is 0.84 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(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(14) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(19) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(21) atom. In the tenth H site, H(11) is bonded in a single-bond geometry to one C(23) atom. In the eleventh H site, H(12) is bonded in a single-bond geometry to one C(28) atom. In the twelfth H site, H(14) is bonded in a single-bond geometry to one C(30) atom. There are sixteen inequivalent O sites. In the first O site, O(12) is bonded in a water-like geometry to one Cd(1) and one C(24) atom. In the second O site, O(13) is bonded in a bent 120 degrees geometry to one C(31) and one H(2) atom. In the third O site, O(14) is bonded in a single-bond geometry to one K(1) and one C(31) atom. In the fourth O site, O(1) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(1) atom. In the fifth O site, O(15) is bonded in a single-bond geometry to one Cd(2) and one C(32) atom. In the sixth O site, O(2) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(1) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to one Cd(3) and one C(8) atom. In the eighth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Cd(3), and one C(8) atom. In the ninth O site, O(5) is bonded in a single-bond geometry to one Cd(2) and one C(15) atom. In the tenth O site, O(6) is bonded in a single-bond geometry to one K(1), one K(2), one Cd(2), and one C(15) atom. In the eleventh O site, O(16) is bonded in a single-bond geometry to one K(1), one K(2), one Cd(2), and one C(32) atom. In the twelfth O site, O(7) is bonded in a bent 120 degrees geometry to one C(16) and one H(1) atom. In the thirteenth O site, O(8) is bonded in a single-bond geometry to one K(2) and one C(16) atom. In the fourteenth O site, O(9) is bonded in a 3-coordinate geometry to one K(2), one Cd(3), and one C(17) atom. In the fifteenth O site, O(10) is bonded in a distorted single-bond geometry to one Cd(3) and one C(17) atom. In the sixteenth O site, O(11) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(24) atom. Linkers: 8 [O]C(=O)c1cc([C]2O[Cd]3(O2)O[C](c2cc(C([O])=O)cc(-c4cccc(C(=O)O)c4C([O])=O)c2)O3)cc(-c2cccc(C(=O)O)c2C([O])=O)c1. Metal clusters: 8 [K] ,12 [Cd]. The MOF has largest included sphere 6.96 A, density 1.40 g/cm3, surface area 3276.19 m2/g, accessible volume 0.35 cm3/g