CuC15H5O8 crystallizes in the trigonal R-3m space group. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(1)-O(1) bond lengths are 1.97 Å. Both Cu(1)-O(2) bond lengths are 1.96 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.25 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(7) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(7) bond length is 1.39 Å. In the third C site, C(3) is bonded in a single-bond geometry to one C(2), one C(8), and one H(1) atom. The C(3)-C(8) bond length is 1.41 Å. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a 5-coordinate geometry to one C(4), one C(6), one C(9), and two equivalent C(5) atoms. The C(4)-C(4) bond length is 1.64 Å. The C(4)-C(6) bond length is 1.54 Å. The C(4)-C(9) bond length is 1.37 Å. There is one shorter (1.40 Å) and one longer (1.69 Å) C(4)-C(5) bond length. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(9), two equivalent C(4), and one H(2) atom. The C(5)-C(9) bond length is 1.41 Å. The C(5)-H(2) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.15 Å. The C(6)-O(4) bond length is 1.11 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to two equivalent C(2) and one H(3) atom. The C(7)-H(3) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(9) and two equivalent C(3) atoms. The C(8)-C(9) bond length is 1.47 Å. In the ninth C site, C(9) is bonded in a 5-coordinate geometry to one C(8), two equivalent C(4), and two equivalent C(5) atoms. There are three inequivalent H sites. In the first H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the second H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(5) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(6) atom. Linkers: 3 [O]C(=O)[C@]12[CH][C@@]34[CH][C@@]1(C([O])=O)[C@@]21[CH][C@@]3(C([O])=O)[C@@]4(C([O])=O)[CH]1.[O]C(=O)c1c[c]cc(C([O])=O)c1.[O]C(=O)c1c[c]cc(C([O])=O)c1 ,2 [O]C(=O)[C@]12[CH][C@]34[CH][C@@]1(C([O])=O)[C@]21[CH][C@@]3(C([O])=O)[C@@]4(C([O])=O)[CH]1.[O]C(=O)c1c[c]cc(C([O])=O)c1.[O]C(=O)c1c[c]cc(C([O])=O)c1 ,3 [O]C(=O)[C@]12[CH][C@@]34[CH][C@@]1(C([O])=O)[C@]21[CH][C@@]3(C([O])=O)[C@@]4(C([O])=O)[CH]1.[O]C(=O)c1c[c]cc(C([O])=O)c1.[O]C(=O)c1c[c]cc(C([O])=O)c1 ,1 [O]C(=O)[C@@]12[CH][C@@]34[CH][C@]1(C([O])=O)[C@]21[C@@H]2[C@H]1[C@@]3(C([O])=O)[C@@]24C([O])=O.[O]C(=O)c1c[c]cc(C([O])=O)c1.[O]C(=O)c1c[c]cc(C([O])=O)c1 ,1 [O]C(=O)[C@]12[C@@H]3[C@@H]4[C@@]1(C([O])=O)[C@@]21[C@@H]2[C@H]1[C@@]1(C([O])=O)[C@]2(C([O])=O)[C@]431.[O]C(=O)c1c[c]cc(C([O])=O)c1.[O]C(=O)c1c[c]cc(C([O])=O)c1. Metal clusters: 9 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: nbo. The MOF has largest included sphere 10.94 A, density 0.97 g/cm3, surface area 3596.87 m2/g, accessible volume 0.67 cm3/g