Cd2C27N2H15O9(CH)2 crystallizes in the triclinic P-1 space group. The structure consists of four 02329_fluka molecules inside a Cd2C27N2H15O9 framework. In the Cd2C27N2H15O9 framework, there are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(1), one O(2), one O(4), one O(7), one O(9), and two equivalent O(8) atoms to form distorted CdO7 pentagonal bipyramids that share  a cornercorner with one Cd(2)NO4 trigonal bipyramid and  an edgeedge with one Cd(1)O7 pentagonal bipyramid. The Cd(1)-O(1) bond length is 2.56 Å. The Cd(1)-O(2) bond length is 2.37 Å. The Cd(1)-O(4) bond length is 2.32 Å. The Cd(1)-O(7) bond length is 2.35 Å. The Cd(1)-O(9) bond length is 2.31 Å. There is one shorter (2.38 Å) and one longer (2.62 Å) Cd(1)-O(8) bond length. In the second Cd site, Cd(2) is bonded to one N(1), one O(1), one O(6), and two equivalent O(3) atoms to form distorted CdNO4 trigonal bipyramids that share  a cornercorner with one Cd(1)O7 pentagonal bipyramid and  an edgeedge with one Cd(2)NO4 trigonal bipyramid. The Cd(2)-N(1) bond length is 2.22 Å. The Cd(2)-O(1) bond length is 2.29 Å. The Cd(2)-O(6) bond length is 2.19 Å. There is one shorter (2.39 Å) and one longer (2.40 Å) Cd(2)-O(3) bond length. 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 1.26 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(8) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-C(8) bond length is 1.40 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-C(5) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(4)-O(3) bond length is 1.29 Å. The C(4)-O(4) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(3) and one H(1) atom. The C(5)-H(1) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(7) and one H(2) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6), one C(8), and one C(9) atom. The C(7)-C(8) bond length is 1.40 Å. The C(7)-C(9) bond length is 1.49 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(2), one C(7), and one H(3) atom. The C(8)-H(3) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(7), and one O(5) atom. The C(9)-C(10) bond length is 1.49 Å. The C(9)-O(5) bond length is 1.24 Å. In the tenth 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 1.40 Å. The C(10)-C(15) bond length is 1.40 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(4) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-H(4) bond length is 1.09 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(16) atom. The C(12)-C(13) bond length is 1.41 Å. The C(12)-C(16) bond length is 1.50 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(12), one C(14), and one C(17) atom. The C(13)-C(14) bond length is 1.40 Å. The C(13)-C(17) bond length is 1.51 Å. In the fourteenth 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 1.09 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(10) and one H(6) atom. The C(15)-H(6) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(6), and one O(7) atom. The C(16)-O(6) bond length is 1.28 Å. The C(16)-O(7) bond length is 1.27 Å. In the seventeenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(8), and one O(9) atom. The C(17)-O(8) bond length is 1.28 Å. The C(17)-O(9) bond length is 1.27 Å. In the eighteenth C site, C(18) is bonded in a distorted trigonal non-coplanar geometry to one C(19), one H(7), one H(8), and one H(9) atom. The C(18)-C(19) bond length is 1.48 Å. The C(18)-H(7) bond length is 1.09 Å. The C(18)-H(8) bond length is 1.10 Å. The C(18)-H(9) bond length is 1.10 Å. In the nineteenth C site, C(19) is bonded in a distorted trigonal planar geometry to one C(18), one N(1), and one N(2) atom. The C(19)-N(1) bond length is 1.34 Å. The C(19)-N(2) bond length is 1.37 Å. In the twentieth C site, C(20) is bonded in a distorted single-bond geometry to one C(21), one C(25), and one N(1) atom. The C(20)-C(21) bond length is 1.40 Å. The C(20)-C(25) bond length is 1.41 Å. The C(20)-N(1) bond length is 1.39 Å. In the twenty-first C site, C(21) is bonded in a distorted single-bond geometry to one C(20) and one H(10) atom. The C(21)-H(10) bond length is 1.09 Å. In the twenty-second C site, C(24) is bonded in a distorted single-bond geometry to one C(25) and one H(13) atom. The C(24)-C(25) bond length is 1.39 Å. The C(24)-H(13) bond length is 1.09 Å. In the twenty-third C site, C(25) is bonded in a distorted single-bond geometry to one C(20), one C(24), and one N(2) atom. The C(25)-N(2) bond length is 1.39 Å. In the twenty-fourth C site, C(26) is bonded in a distorted trigonal non-coplanar geometry to one C(27), one N(2), one H(14), and one H(15) atom. The C(26)-C(27) bond length is 1.51 Å. The C(26)-N(2) bond length is 1.46 Å. The C(26)-H(14) bond length is 1.10 Å. The C(26)-H(15) bond length is 1.10 Å. In the twenty-fifth C site, C(27) is bonded in a trigonal planar geometry to one C(26), one C(28), and one C(29) atom. The C(27)-C(28) bond length is 1.40 Å. The C(27)-C(29) bond length is 1.40 Å. In the twenty-sixth C site, C(28) is bonded in a distorted single-bond geometry to one C(27) and one H(16) atom. The C(28)-H(16) bond length is 1.09 Å. In the twenty-seventh C site, C(29) is bonded in a distorted single-bond geometry to one C(27) and one H(17) atom. The C(29)-H(17) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(2), one C(19), and one C(20) atom. In the second N site, N(2) 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(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(14) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(15) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(18) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(18) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(18) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(21) atom. In the eleventh H site, H(13) is bonded in a single-bond geometry to one C(24) atom. In the twelfth H site, H(14) is bonded in a single-bond geometry to one C(26) atom. In the thirteenth H site, H(15) is bonded in a single-bond geometry to one C(26) atom. In the fourteenth H site, H(16) is bonded in a single-bond geometry to one C(28) atom. In the fifteenth H site, H(17) is bonded in a single-bond geometry to one C(29) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cd(1), one Cd(2), and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Cd(2) and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(9) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Cd(2) and one C(16) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one C(16) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Cd(1) and one C(17) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Cd(1) and one C(17) atom. Linkers: 1 Cc1nc2ccccc2n1Cc1ccc(Cn2c(C)nc3ccccc32)cc1 ,2 [CH]c1[c]nc(C)n1Cc1ccc(Cn2c(C)nc3ccccc32)cc1 ,2 [O]C(=O)c1ccc(C(=O)c2ccc(C([O])=O)c(C([O])=O)c2)cc1C([O])=O. Metal clusters: 4 [Cd]. The MOF has largest included sphere 2.36 A, density 2.07 g/cm3, surface area 3474.74 m2/g, accessible volume 0.12 cm3/g