CdC2N3H2Cl crystallizes in the orthorhombic Cmc2_1 space group. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a rectangular see-saw-like geometry to one N(5), two equivalent N(1), and one Cl(1) atom. The Cd(1)-N(5) bond length is 2.35 Å. Both Cd(1)-N(1) bond lengths are 2.31 Å. The Cd(1)-Cl(1) bond length is 2.60 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to one N(6), two equivalent N(3), one Cl(1), one Cl(2), and one Cl(3) atom. The Cd(2)-N(6) bond length is 2.28 Å. Both Cd(2)-N(3) bond lengths are 2.26 Å. The Cd(2)-Cl(1) bond length is 2.80 Å. The Cd(2)-Cl(2) bond length is 3.11 Å. The Cd(2)-Cl(3) bond length is 2.63 Å. In the third Cd site, Cd(3) is bonded in a trigonal bipyramidal geometry to one N(4), two equivalent N(2), one Cl(2), and one Cl(3) atom. The Cd(3)-N(4) bond length is 2.36 Å. Both Cd(3)-N(2) bond lengths are 2.25 Å. The Cd(3)-Cl(2) bond length is 2.48 Å. The Cd(3)-Cl(3) bond length is 2.66 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(1) atom. The C(1)-N(1) bond length is 1.33 Å. The C(1)-N(3) bond length is 1.35 Å. The C(1)-H(1) bond length is 0.93 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(2) atom. The C(2)-N(2) bond length is 1.33 Å. The C(2)-N(3) bond length is 1.35 Å. The C(2)-H(2) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(4), one N(6), and one H(3) atom. The C(3)-N(4) bond length is 1.30 Å. The C(3)-N(6) bond length is 1.39 Å. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one N(5), one N(6), and one H(4) atom. The C(4)-N(5) bond length is 1.28 Å. The C(4)-N(6) bond length is 1.36 Å. The C(4)-H(4) bond length is 0.93 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(1), and one N(2) atom. The N(1)-N(2) bond length is 1.40 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Cd(3), one C(2), and one N(1) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Cd(2), one C(1), and one C(2) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cd(3), one C(3), and one N(5) atom. The N(4)-N(5) bond length is 1.36 Å. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(4), and one N(4) atom. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Cd(2), one C(3), and one C(4) atom. There are four 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(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one Cd(2) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to one Cd(2) and one Cd(3) atom. In the third Cl site, Cl(3) is bonded in a water-like geometry to one Cd(2) and one Cd(3) atom. Linkers: 2 [N]1=CN=NC=1 ,4 C1=NN=C[N]1. Metal clusters: 6 [Cd]. The MOF has largest included sphere 5.23 A, density 1.81 g/cm3, surface area 2856.02 m2/g, accessible volume 0.27 cm3/g