Cd3C6N8H2Cl crystallizes in the cubic Pm-3m space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a square pyramidal geometry to four equivalent N(1) and one Cl(1) atom. All Cd(1)-N(1) bond lengths are 2.31 Å. The Cd(1)-Cl(1) bond length is 2.42 Å. In the second Cd site, Cd(2) is bonded in a 3-coordinate geometry to two equivalent N(2) and one Cl(1) atom. Both Cd(2)-N(2) bond lengths are 2.41 Å. The Cd(2)-Cl(1) bond length is 2.83 Å. There are three inequivalent C sites. In the first C site, C(3) is bonded in a single-bond geometry to two equivalent C(2) and one H(1) atom. Both C(3)-C(2) bond lengths are 1.39 Å. The C(3)-H(1) bond length is 0.93 Å. In the second C site, C(1) is bonded in a distorted water-like geometry to one C(2) and two equivalent N(2) atoms. The C(1)-C(2) bond length is 1.45 Å. Both C(1)-N(2) bond lengths are 1.34 Å. In the third C site, C(2) is bonded in a trigonal planar geometry to one C(1) and two equivalent C(3) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one N(1), and one N(2) atom. The N(1)-N(1) bond length is 1.29 Å. The N(1)-N(2) bond length is 1.33 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Cd(2), one C(1), and one N(1) atom. H(1) is bonded in a single-bond geometry to one C(3) atom. Cl(1) is bonded in a distorted T-shaped geometry to one Cd(1) and two equivalent Cd(2) atoms. Linkers: 8 c1c(C2=NN=N[N]2)cc(C2=NN=N[N]2)cc1C1=NN=N[N]1. Metal clusters: 3 Cl[Cd]123N4[N][Cd][N]N1N1[N][Cd][N]N5N6[N][Cd][N]N7N8[N][Cd][N]N4[Cd]84(Cl)N8[N][Cd][N]N4N4[N][Cd][N]N(N9[N][Cd][N]N(N2[N][Cd][N]N83)[Cd]159Cl)[Cd]746Cl. The MOF has largest included sphere 15.94 A, density 1.55 g/cm3, surface area 2129.73 m2/g, accessible volume 0.43 cm3/g