CdC18N2H12O5(CH)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight 02329_fluka molecules inside a CdC18N2H12O5 framework. In the CdC18N2H12O5 framework, Cd(1) 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 69°. Both Cd(1)-O(1) bond lengths are 2.35 Å. Both Cd(1)-O(2) bond lengths are 2.26 Å. Both Cd(1)-O(3) bond lengths are 2.36 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.32 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(10), one C(2), and one C(4) atom. The C(3)-C(10) bond length is 1.52 Å. The C(3)-C(4) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(9) atom. The C(4)-C(5) bond length is 1.42 Å. The C(4)-C(9) bond length is 1.44 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(3) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-H(3) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(4) atom. The C(6)-H(4) bond length is 1.09 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one H(6) atom. The C(8)-C(9) bond length is 1.42 Å. The C(8)-H(6) bond length is 1.09 Å. In the eighth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(4), one C(8), and one N(1) atom. The C(9)-N(1) bond length is 1.37 Å. In the ninth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(2), and one O(3) atom. The C(10)-O(2) bond length is 1.27 Å. The C(10)-O(3) bond length is 1.27 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(9), and one H(7) atom. The N(1)-H(7) bond length is 1.61 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(7) is bonded in a linear geometry to one N(1) and one O(1) atom. The H(7)-O(1) bond length is 1.04 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to two equivalent Cd(1) and two equivalent H(7) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one C(10) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one C(10) atom. Linkers: 4 [O]C(=O)c1ccnc2ccccc12 ,2 O. Metal clusters: 2 [Cd]. The MOF has largest included sphere 1.91 A, density 1.86 g/cm3, surface area 3979.69 m2/g, accessible volume 0.10 cm3/g