CuC7H6O4 crystallizes in the monoclinic C2/c space group. Cu(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. The Cu(1)-O(1) bond length is 1.98 Å. The Cu(1)-O(2) bond length is 1.97 Å. The Cu(1)-O(3) bond length is 1.99 Å. The Cu(1)-O(4) bond length is 1.97 Å. There are eight inequivalent C sites. In the first C site, C(7) is bonded in a water-like geometry to two equivalent C(2) and two equivalent H(5) atoms. Both C(7)-C(2) bond lengths are 1.54 Å. Both C(7)-H(5) bond lengths are 0.99 Å. In the second C site, C(8) is bonded in a water-like geometry to two equivalent C(4) and two equivalent H(6) atoms. Both C(8)-C(4) bond lengths are 1.55 Å. Both C(8)-H(6) bond lengths are 0.99 Å. In the third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.54 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.26 Å. In the fourth C site, C(2) is bonded to one C(1), one C(3), one C(6), and one C(7) atom to form corner-sharing CC4 tetrahedra. The C(2)-C(3) bond length is 1.54 Å. The C(2)-C(6) bond length is 1.54 Å. In the fifth C site, C(3) is bonded in a water-like geometry to one C(2); one C(4); and two equivalent H(1,2,3) atoms. The C(3)-C(4) bond length is 1.56 Å. Both C(3)-H(1,2,3) bond lengths are 0.99 Å. In the sixth C site, C(4) is bonded to one C(3), one C(5), one C(6), and one C(8) atom to form corner-sharing CC4 tetrahedra. The C(4)-C(5) bond length is 1.54 Å. The C(4)-C(6) bond length is 1.54 Å. In the seventh C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(5)-O(3) bond length is 1.26 Å. The C(5)-O(4) bond length is 1.26 Å. In the eighth C site, C(6) is bonded in a water-like geometry to one C(2); one C(4); one H(1,2,3); and one H(4) atom. The C(6)-H(1,2,3) bond length is 0.99 Å. The C(6)-H(4) bond length is 0.99 Å. There are four inequivalent H sites. In the first H site, H(1,2,3) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(8) 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 distorted bent 120 degrees geometry to one Cu(1) and one C(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(5) atom. Linkers: 2 [O]C(=O)[C@]12C[C@]3(C([O])=O)C[C@](C([O])=O)(C1)C[C@](C([O])=O)(C2)C3. Metal clusters: 2 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: pts. The MOF has largest included sphere 4.68 A, density 1.39 g/cm3, surface area 3176.19 m2/g, accessible volume 0.37 cm3/g