Cu(C6H4NO2)2 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two Cu(C6H4NO2)2 clusters. 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 1.99 Å. The Cu(1)-N(2) bond length is 1.99 Å. The Cu(1)-O(1) bond length is 2.39 Å. The Cu(1)-O(2) bond length is 2.00 Å. The Cu(1)-O(3) bond length is 2.02 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(8), one O(3), and one O(4) atom. The C(1)-C(8) bond length is 1.51 Å. The C(1)-O(3) bond length is 1.29 Å. The C(1)-O(4) bond length is 1.25 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(1), and one O(2) atom. The C(2)-C(4) bond length is 1.51 Å. The C(2)-O(1) bond length is 1.25 Å. The C(2)-O(2) bond length is 1.29 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(8) and one H(1) atom. The C(3)-C(8) bond length is 1.40 Å. The C(3)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(10), one C(2), and one C(5) atom. The C(4)-C(10) bond length is 1.40 Å. The C(4)-C(5) bond length is 1.40 Å. In the fifth 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 1.09 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(3) atom. The C(6)-N(2) bond length is 1.35 Å. The C(6)-H(3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(7)-N(1) bond length is 1.35 Å. The C(7)-H(4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(1), one C(12), and one C(3) atom. The C(8)-C(12) bond length is 1.40 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(5) atom. The C(9)-N(1) bond length is 1.35 Å. The C(9)-H(5) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(4) and one H(6) atom. The C(10)-H(6) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(7) atom. The C(11)-N(2) bond length is 1.35 Å. The C(11)-H(7) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(8) and one H(8) atom. The C(12)-H(8) bond length is 1.09 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(7), and one C(9) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(1), one C(11), and one C(6) 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(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(9) 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(7) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(12) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cu(1) and one C(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(2) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(1) atom. Linkers: 8 [O]C(=O)c1ccncc1. Metal clusters: 2 O=[C]O[Cu]1O[C]O[Cu](O[C]=O)O[C]O1. The MOF has largest included sphere 4.89 A, density 1.30 g/cm3, surface area 3998.35 m2/g, accessible volume 0.30 cm3/g