CuC10H8(NO2)2CH(CH3)2 crystallizes in the trigonal R-3 space group. The structure consists of eighteen 02329_fluka molecules and thirty-six 02329_fluka molecules inside a CuC10H8(NO2)2 framework. In the CuC10H8(NO2)2 framework, Cu(1) is bonded in a square pyramidal geometry to one N(1), one N(2), one O(1), one O(2), and one O(3) atom. The Cu(1)-N(1) bond length is 2.02 Å. The Cu(1)-N(2) bond length is 1.95 Å. The Cu(1)-O(1) bond length is 2.33 Å. The Cu(1)-O(2) bond length is 1.89 Å. The Cu(1)-O(3) bond length is 1.97 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(7), and one O(2) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-C(7) bond length is 1.46 Å. The C(1)-O(2) bond length is 1.31 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.46 Å. The C(2)-N(1) bond length is 1.34 Å. In the third C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one C(2), one H(1), one H(2), and one H(3) atom. The C(3)-H(1) bond length is 1.04 Å. The C(3)-H(2) bond length is 1.00 Å. The C(3)-H(3) bond length is 1.05 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(5), one N(1), and one H(4) atom. The C(4)-C(5) bond length is 1.33 Å. The C(4)-N(1) bond length is 1.35 Å. The C(4)-H(4) bond length is 1.08 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.58 Å. The C(5)-C(7) bond length is 1.46 Å. In the sixth C site, C(6) is bonded in a distorted trigonal non-coplanar geometry to one C(5), one H(5), one H(6), and one O(1) atom. The C(6)-H(5) bond length is 1.04 Å. The C(6)-H(6) bond length is 1.05 Å. The C(6)-O(1) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(1), one C(5), and one C(8) atom. The C(7)-C(8) bond length is 1.41 Å. In the eighth C site, C(8) is bonded in a distorted L-shaped geometry to one C(7), one N(2), and one H(7) atom. The C(8)-N(2) bond length is 1.34 Å. The C(8)-H(7) bond length is 1.28 Å. In the ninth C site, C(9) is bonded in a 2-coordinate geometry to one N(2) and one H(8) atom. The C(9)-N(2) bond length is 1.45 Å. The C(9)-H(8) bond length is 1.08 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(10)-O(3) bond length is 1.32 Å. The C(10)-O(4) bond length is 1.21 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(2), and one C(4) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(1), one C(8), and one C(9) 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(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) 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(6) 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. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(10) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(10) atom. Linkers: 3 Cc1ncc(C[O])c(/[C]=N/[C@@H](C([O])=O)C(C)C)c1[O] ,3 Cc1ncc(C[O])c(/[C]=N/[C@H](C([O])=O)C(C)C)c1[O]. Metal clusters: 6 [Cu]. The MOF has largest included sphere 7.21 A, density 1.29 g/cm3, surface area 4409.89 m2/g, accessible volume 0.30 cm3/g