Cd7C78H30(NO4)6 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 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. All Cd(1)-O(1) bond lengths are 2.34 Å. All Cd(1)-O(2) bond lengths are 2.41 Å. In the second Cd site, Cd(2) is bonded in a distorted pentagonal planar geometry to one Cd(2) and four equivalent N(1) atoms. The Cd(2)-Cd(2) bond length is 1.71 Å. All Cd(2)-N(1) bond lengths are 2.32 Å. There are eight inequivalent C sites. In the first C site, C(6) is bonded in a trigonal planar geometry to one C(7) and two equivalent C(4) atoms. The C(6)-C(7) bond length is 1.49 Å. Both C(6)-C(4) bond lengths are 1.40 Å. In the second C site, C(7) is bonded in a trigonal planar geometry to one C(6) and two equivalent C(2) atoms. Both C(7)-C(2) bond lengths are 1.38 Å. In the third C site, C(8) is bonded in a distorted trigonal planar geometry to two equivalent C(1) and one H(3) atom. Both C(8)-C(1) bond lengths are 1.37 Å. The C(8)-H(3) bond length is 0.93 Å. In the fourth C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(8) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(3) bond length is 1.49 Å. In the fifth C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(7), and one H(1) atom. The C(2)-H(1) bond length is 0.93 Å. In the sixth C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(3)-O(1) bond length is 1.18 Å. The C(3)-O(2) bond length is 1.22 Å. In the seventh C site, C(4) is bonded in a distorted trigonal planar geometry to one C(5), one C(6), and one N(1) atom. The C(4)-C(5) bond length is 1.47 Å. The C(4)-N(1) bond length is 1.39 Å. In the eighth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(2) atom. The C(5)-H(2) bond length is 0.93 Å. N(1) is bonded in a 4-coordinate geometry to two equivalent Cd(2) and two equivalent C(4) atoms. There are three inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(1) 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(8) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Cd(1) and one C(3) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Cd(1) and one C(3) atom. Linkers: 5 [O]C(=O)c1cc(C([O])=O)cc(/C2=C3\C=C/C(=C(\c4cc(C([O])=O)cc(C([O])=O)c4)C4=N/C(=C(/c5cc(C([O])=O)cc(C([O])=O)c5)C5=CC=C([N]5)/C(c5cc(C([O])=O)cc(C([O])=O)c5)=C5/C=CC2=N5)C=C4)[N]3)c1. Metal clusters: 8 [C]1O[Cd]23(O1)(O[C]O2)O[C]O3 ,1 [N][Cd]([N])([N])([N])[Cd] ,1 [N][Cd][Cd]([N])([N])[N] ,1 [N][Cd]([N])[Cd]([N])[N]. RCSR code: the. The MOF has largest included sphere 17.65 A, density 0.65 g/cm3, surface area 3409.96 m2/g, accessible volume 1.15 cm3/g