CdC17NH9O4(CH)2 crystallizes in the monoclinic C2/c space group. The structure consists of sixteen 02329_fluka molecules inside a CdC17NH9O4 framework. In the CdC17NH9O4 framework, there are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(4) atoms to form corner-sharing CdN2O4 octahedra. The corner-sharing octahedral tilt angles are 77°. Both Cd(1)-N(1) bond lengths are 2.38 Å. Both Cd(1)-O(1) bond lengths are 2.30 Å. Both Cd(1)-O(4) bond lengths are 2.29 Å. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles are 77°. Both Cd(2)-O(1) bond lengths are 2.39 Å. Both Cd(2)-O(2) bond lengths are 2.23 Å. Both Cd(2)-O(3) bond lengths are 2.32 Å. There are seventeen inequivalent C sites. In the first C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one H(6) atom. The C(18)-C(4) bond length is 1.41 Å. The C(18)-N(1) bond length is 1.32 Å. The C(18)-H(6) bond length is 0.93 Å. In the second C site, C(19) is bonded in a trigonal planar geometry to one C(10), one C(15), and one C(7) atom. The C(19)-C(10) bond length is 1.50 Å. The C(19)-C(15) bond length is 1.39 Å. The C(19)-C(7) bond length is 1.40 Å. In the third C site, C(1) is bonded in a trigonal planar geometry to one C(12), one C(3), and one C(4) atom. The C(1)-C(12) bond length is 1.39 Å. The C(1)-C(3) bond length is 1.38 Å. The C(1)-C(4) bond length is 1.50 Å. In the fourth C site, C(2) is bonded in a single-bond geometry to one C(14) and one H(8) atom. The C(2)-C(14) bond length is 1.40 Å. The C(2)-H(8) bond length is 0.93 Å. In the fifth C site, C(3) is bonded in a single-bond geometry to one C(1), one C(13), and one H(5) atom. The C(3)-C(13) bond length is 1.38 Å. The C(3)-H(5) bond length is 0.93 Å. In the sixth C site, C(4) is bonded in a trigonal planar geometry to one C(1), one C(18), and one C(7) atom. The C(4)-C(7) bond length is 1.37 Å. In the seventh C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(2), and one O(4) atom. The C(5)-C(14) bond length is 1.49 Å. The C(5)-O(2) bond length is 1.27 Å. The C(5)-O(4) bond length is 1.25 Å. In the eighth C site, C(6) is bonded in a distorted single-bond geometry to one C(10) and one H(4) atom. The C(6)-C(10) bond length is 1.40 Å. The C(6)-H(4) bond length is 0.93 Å. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to one C(19), one C(4), and one H(1) atom. The C(7)-H(1) bond length is 0.93 Å. In the tenth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(1), and one O(3) atom. The C(9)-C(13) bond length is 1.50 Å. The C(9)-O(1) bond length is 1.28 Å. The C(9)-O(3) bond length is 1.25 Å. In the eleventh C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(19), and one C(6) atom. The C(10)-C(11) bond length is 1.39 Å. In the twelfth C site, C(11) is bonded in a single-bond geometry to one C(10), one C(14), and one H(11) atom. The C(11)-C(14) bond length is 1.41 Å. The C(11)-H(11) bond length is 0.93 Å. In the thirteenth C site, C(12) is bonded in a distorted single-bond geometry to one C(1) and one H(10) atom. The C(12)-H(10) bond length is 0.93 Å. In the fourteenth C site, C(13) is bonded in a trigonal planar geometry to one C(16), one C(3), and one C(9) atom. The C(13)-C(16) bond length is 1.40 Å. In the fifteenth C site, C(14) is bonded in a trigonal planar geometry to one C(11), one C(2), and one C(5) atom. In the sixteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(19), one N(1), and one H(2) atom. The C(15)-N(1) bond length is 1.34 Å. The C(15)-H(2) bond length is 0.93 Å. In the seventeenth C site, C(16) is bonded in a single-bond geometry to one C(13) and one H(7) atom. The C(16)-H(7) bond length is 0.93 Å. N(1) is bonded in a trigonal planar geometry to one Cd(1), one C(15), and one C(18) atom. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(7) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(15) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(18) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(16) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(2) atom. In the eighth H site, H(10) is bonded in a single-bond geometry to one C(12) atom. In the ninth H site, H(11) is bonded in a single-bond geometry to one C(11) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one Cd(2), and one C(9) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cd(2) and one C(5) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Cd(2) and one C(9) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Cd(1) and one C(5) atom. Linkers: 2 [O]C(=O)c1cccc(-c2cncc(-c3cc[c]c([C]=O)c3)c2)c1 ,4 [O]C(=O)c1cccc(-c2cncc(-c3cccc(C([O])=O)c3)c2)c1 ,2 [O]C(=O)c1c[c]cc(-c2cncc(-c3cccc(C([O])=O)c3)c2)c1. Metal clusters: 4 [Cd]. The MOF has largest included sphere 4.88 A, density 1.72 g/cm3, surface area 3612.30 m2/g, accessible volume 0.15 cm3/g