CuC24H18(NO)4 crystallizes in the trigonal R-3m space group. Cu(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(1)-O(1) bond lengths are 1.94 Å. Both Cu(1)-O(2) bond lengths are 1.94 Å. There are twelve inequivalent C sites. In the first 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 1.52 Å. The C(1)-O(1) bond length is 1.28 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 1.36 Å. The C(2)-C(7) bond length is 1.43 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(1) bond length is 0.95 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(11), one C(3), and one C(5) atom. The C(4)-C(11) bond length is 1.51 Å. The C(4)-C(5) bond length is 1.43 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(6) atom. The C(5)-C(5) bond length is 1.47 Å. The C(5)-C(6) bond length is 1.48 Å. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(5) and one C(7) atom. The C(6)-C(7) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(2) atom. The C(7)-H(2) bond length is 0.95 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(9), one N(2), and one H(3) atom. The C(8)-C(9) bond length is 1.34 Å. The C(8)-N(2) bond length is 1.37 Å. The C(8)-H(3) bond length is 0.95 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(8), one N(1), and one H(4) atom. The C(9)-N(1) bond length is 1.37 Å. The C(9)-H(4) bond length is 0.95 Å. In the tenth C site, C(10) is bonded in a tetrahedral geometry to one N(2); one H(6); and two equivalent H(5,7) atoms. The C(10)-N(2) bond length is 1.47 Å. The C(10)-H(6) bond length is 0.98 Å. Both C(10)-H(5,7) bond lengths are 0.98 Å. In the eleventh C site, C(11) is bonded in a 3-coordinate geometry to one C(4), one N(1), one H(8), and one H(9) atom. The C(11)-N(1) bond length is 1.48 Å. The C(11)-H(8) bond length is 0.99 Å. The C(11)-H(9) bond length is 0.99 Å. In the twelfth C site, C(12) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. The C(12)-N(1) bond length is 1.33 Å. The C(12)-N(2) bond length is 1.33 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one C(11), one C(12), and one C(9) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one C(10), one C(12), and one C(8) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(5,7) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(11) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(1) atom. Linkers: 6 CN1[C]N(Cc2cc(C([O])=O)c[c]c2-c2[c]cc(C([O])=O)cc2CN2[C]N(C)C=C2)C=C1. Metal clusters: 3 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: nbo. The MOF has largest included sphere 12.85 A, density 0.72 g/cm3, surface area 4912.39 m2/g, accessible volume 0.77 cm3/g