Cd2C9N8H7O5CH crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules inside a Cd2C9N8H7O5 framework. In the Cd2C9N8H7O5 framework, there are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in an octahedral geometry to one N(1), one N(4), one N(5), one N(8), one O(2), and one O(5) atom. The Cd(1)-N(1) bond length is 2.36 Å. The Cd(1)-N(4) bond length is 2.32 Å. The Cd(1)-N(5) bond length is 2.41 Å. The Cd(1)-N(8) bond length is 2.36 Å. The Cd(1)-O(2) bond length is 2.38 Å. The Cd(1)-O(5) bond length is 2.40 Å. In the second Cd site, Cd(2) is bonded in a 7-coordinate geometry to one N(2), one N(6), one O(1), one O(2), one O(4), and two equivalent O(3) atoms. The Cd(2)-N(2) bond length is 2.36 Å. The Cd(2)-N(6) bond length is 2.30 Å. The Cd(2)-O(1) bond length is 2.26 Å. The Cd(2)-O(2) bond length is 2.65 Å. The Cd(2)-O(4) bond length is 2.56 Å. There is one shorter (2.34 Å) and one longer (2.45 Å) Cd(2)-O(3) bond length. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.49 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(1) atom. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(3) bond length is 1.09 Å. In the fourth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(8) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(8) bond length is 1.49 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(4) atom. The C(6)-H(4) bond length is 1.09 Å. In the sixth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.29 Å. The C(7)-O(2) bond length is 1.27 Å. In the seventh C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.30 Å. The C(8)-O(4) bond length is 1.26 Å. In the eighth C site, C(9) is bonded in a trigonal planar geometry to one N(1), one N(4), and one H(5) atom. The C(9)-N(1) bond length is 1.34 Å. The C(9)-N(4) bond length is 1.34 Å. The C(9)-H(5) bond length is 1.08 Å. In the ninth C site, C(10) is bonded in a trigonal planar geometry to one N(5), one N(8), and one H(6) atom. The C(10)-N(5) bond length is 1.34 Å. The C(10)-N(8) bond length is 1.35 Å. The C(10)-H(6) bond length is 1.08 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Cd(1), one C(9), and one N(2) atom. The N(1)-N(2) bond length is 1.35 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cd(2), one N(1), and one N(3) atom. The N(2)-N(3) bond length is 1.30 Å. In the third N site, N(3) is bonded in a water-like geometry to one N(2) and one N(4) atom. The N(3)-N(4) bond length is 1.35 Å. In the fourth N site, N(4) is bonded in a 3-coordinate geometry to one Cd(1), one C(9), and one N(3) atom. In the fifth N site, N(5) is bonded in a 3-coordinate geometry to one Cd(1), one C(10), and one N(6) atom. The N(5)-N(6) bond length is 1.34 Å. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Cd(2), one N(5), and one N(7) atom. The N(6)-N(7) bond length is 1.31 Å. In the seventh N site, N(7) is bonded in a water-like geometry to one N(6) and one N(8) atom. The N(7)-N(8) bond length is 1.35 Å. In the eighth N site, N(8) is bonded in a 3-coordinate geometry to one Cd(1), one C(10), and one N(7) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(4) 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(9) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one O(5) atom. The H(7)-O(5) bond length is 0.99 Å. In the seventh H site, H(8) is bonded in a single-bond geometry to one O(5) atom. The H(8)-O(5) bond length is 0.98 Å. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted water-like geometry to one Cd(1), one H(7), and one H(8) atom. In the second O site, O(1) is bonded in a distorted water-like geometry to one Cd(2) and one C(7) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1), one Cd(2), and one C(7) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Cd(2) and one C(8) atom. In the fifth O site, O(4) is bonded in a single-bond geometry to one Cd(2) and one C(8) atom. Linkers: 4 [O]C(=O)c1cccc(C([O])=O)c1 ,8 C1=NN=N[N]1. Metal clusters: 2 O.O.O=[C]O[Cd@@]12[N][N][Cd](N=N1)O[C]O2.O=[C]O[Cd@]12[N][N][Cd](N=N1)O[C]O2. The MOF has largest included sphere 2.32 A, density 2.47 g/cm3, surface area 3075.69 m2/g, accessible volume 0.11 cm3/g