Cd2C9N12H7O2Cl crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one N(2), one N(5), one N(7), one N(9), one O(2), and one Cl(1) atom to form corner-sharing CdN4ClO octahedra. The corner-sharing octahedral tilt angles range from 75-81°. The Cd(1)-N(2) bond length is 2.33 Å. The Cd(1)-N(5) bond length is 2.45 Å. The Cd(1)-N(7) bond length is 2.47 Å. The Cd(1)-N(9) bond length is 2.48 Å. The Cd(1)-O(2) bond length is 2.34 Å. The Cd(1)-Cl(1) bond length is 2.66 Å. In the second Cd site, Cd(2) is bonded to one N(10), one N(4), one N(6), one O(1), and two equivalent Cl(1) atoms to form CdN3Cl2O octahedra that share corners with two equivalent Cd(2)N3Cl2O octahedra and corners with two equivalent Cd(1)N4ClO octahedra. The corner-sharing octahedral tilt angles range from 61-81°. The Cd(2)-N(10) bond length is 2.42 Å. The Cd(2)-N(4) bond length is 2.33 Å. The Cd(2)-N(6) bond length is 2.43 Å. The Cd(2)-O(1) bond length is 2.33 Å. There is one shorter (2.63 Å) and one longer (2.64 Å) Cd(2)-Cl(1) bond length. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted water-like geometry to one C(2), one N(1), and one N(4) atom. The C(1)-C(2) bond length is 1.46 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-N(4) bond length is 1.36 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(9) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(9) bond length is 1.39 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(1) bond length is 1.09 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(6) atom. The C(4)-C(5) bond length is 1.46 Å. The C(4)-C(6) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted water-like geometry to one C(4), one N(5), and one N(8) atom. The C(5)-N(5) bond length is 1.35 Å. The C(5)-N(8) bond length is 1.34 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4), 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 1.46 Å. The C(7)-C(9) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one N(12), and one N(9) atom. The C(8)-N(12) bond length is 1.35 Å. The C(8)-N(9) bond length is 1.36 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(2), one C(7), and one H(3) atom. The C(9)-H(3) bond length is 1.08 Å. There are twelve inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to one C(1) and one N(2) atom. The N(1)-N(2) bond length is 1.34 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cd(1), one N(1), and one N(3) atom. The N(2)-N(3) bond length is 1.32 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 1.34 Å. In the fourth N site, N(4) is bonded in a 3-coordinate geometry to one Cd(2), one C(1), 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(5), 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 1.32 Å. In the seventh N site, N(7) is bonded in a trigonal planar geometry to one Cd(1), one N(6), and one N(8) atom. The N(7)-N(8) bond length is 1.33 Å. In the eighth N site, N(8) is bonded in a distorted single-bond geometry to one C(5), one N(7), and one H(4) atom. The N(8)-H(4) bond length is 1.76 Å. In the ninth N site, N(9) is bonded in a 3-coordinate geometry to one Cd(1), one C(8), and one N(10) atom. The N(9)-N(10) bond length is 1.35 Å. In the tenth N site, N(10) is bonded in a trigonal planar geometry to one Cd(2), one N(11), and one N(9) atom. The N(10)-N(11) bond length is 1.31 Å. In the eleventh N site, N(11) is bonded in a distorted trigonal planar geometry to one N(10), one N(12), and one H(6) atom. The N(11)-N(12) bond length is 1.33 Å. The N(11)-H(6) bond length is 1.69 Å. In the twelfth N site, N(12) is bonded in a distorted single-bond geometry to one C(8) and one N(11) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) 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(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(8) and one O(2) atom. The H(4)-O(2) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(1) atom. The H(5)-O(1) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one N(11) and one O(1) atom. The H(6)-O(1) bond length is 1.01 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(2) atom. The H(7)-O(2) bond length is 1.01 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted water-like geometry to one Cd(1), one H(4), and one H(7) atom. In the second O site, O(1) is bonded in a distorted water-like geometry to one Cd(2), one H(5), and one H(6) atom. Cl(1) is bonded in a trigonal non-coplanar geometry to one Cd(1) and two equivalent Cd(2) atoms. Linkers: 4 c1c(C2=NN=N[N]2)cc(C2=NN=N[N]2)cc1C1=NN=N[N]1. Metal clusters: 8 [Cd]. The MOF has largest included sphere 1.97 A, density 2.67 g/cm3, surface area 2590.59 m2/g, accessible volume 0.06 cm3/g