K2CuC14H10(NO5)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The K(1)-O(1) bond length is 3.13 Å. There is one shorter (2.61 Å) and one longer (2.69 Å) K(1)-O(2) bond length. There is one shorter (2.88 Å) and one longer (2.97 Å) K(1)-O(3) bond length. There is one shorter (2.72 Å) and one longer (2.92 Å) K(1)-O(4) bond length. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent N(1) and two equivalent O(1) atoms. Both Cu(1)-N(1) bond lengths are 1.97 Å. Both Cu(1)-O(1) bond lengths are 1.98 Å. There are seven 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 1.50 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.25 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(7), and one N(1) atom. The C(2)-C(7) bond length is 1.39 Å. The C(2)-N(1) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(3)-N(1) bond length is 1.34 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(5), one C(6), and one C(7) atom. The C(4)-C(5) bond length is 1.52 Å. The C(4)-C(6) bond length is 1.40 Å. The C(4)-C(7) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(4), and one O(5) atom. The C(5)-O(4) bond length is 1.26 Å. The C(5)-O(5) bond length is 1.28 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4) and one H(2) atom. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(3) atom. The C(7)-H(3) bond length is 1.09 Å. N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(2), and one C(3) atom. There are five 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(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(3) atom. The H(4)-O(3) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) atom. The H(5)-O(3) bond length is 0.99 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one K(1), one Cu(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent K(1), one H(4), and one H(5) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(5) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(5) atom. Linkers: 4 [O]C(=O)c1ccnc(C([O])=O)c1. Metal clusters: 4 [K] ,2 [Cu]. The MOF has largest included sphere 1.56 A, density 1.92 g/cm3, surface area 2526.58 m2/g, accessible volume 0.06 cm3/g