CdC9N3H6O2Cl crystallizes in the orthorhombic Pna2_1 space group. Cd(1) is bonded to one N(1), one N(2), one O(1), one O(2), and two equivalent Cl(1) atoms to form distorted corner-sharing CdN2Cl2O2 octahedra. The corner-sharing octahedral tilt angles are 75°. The Cd(1)-N(1) bond length is 2.34 Å. The Cd(1)-N(2) bond length is 2.43 Å. The Cd(1)-O(1) bond length is 2.34 Å. The Cd(1)-O(2) bond length is 2.57 Å. There is one shorter (2.55 Å) and one longer (2.61 Å) Cd(1)-Cl(1) bond length. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(1) atom. The C(1)-N(2) bond length is 1.32 Å. The C(1)-N(3) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.08 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(2) atom. The C(2)-N(1) bond length is 1.32 Å. The C(2)-N(3) bond length is 1.37 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(4), one C(8), and one N(3) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.39 Å. The C(3)-N(3) bond length is 1.44 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(3) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(4) atom. The C(5)-H(4) 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(5) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-H(5) 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 1.50 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(3), one C(7), and one H(6) atom. The C(8)-H(6) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(1), and one O(2) atom. The C(9)-O(1) bond length is 1.29 Å. The C(9)-O(2) bond length is 1.27 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(2), and one N(2) atom. The N(1)-N(2) bond length is 1.37 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(1), and one N(1) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(3) atom. 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(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(9) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(9) atom. Cl(1) is bonded in a water-like geometry to two equivalent Cd(1) atoms. Linkers: 4 [O]C(=O)c1cccc(-n2cnnc2)c1. Metal clusters: 4 [Cd]. The MOF has largest included sphere 1.67 A, density 2.20 g/cm3, surface area 3375.21 m2/g, accessible volume 0.10 cm3/g