K2C10N4H6O11(CH)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight 02329_fluka molecules inside a K2C10N4H6O11 framework. In the K2C10N4H6O11 framework, there are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and four equivalent O(2) atoms. Both K(1)-O(1) bond lengths are 2.81 Å. Both K(1)-O(3) bond lengths are 3.23 Å. Both K(1)-O(5) bond lengths are 3.05 Å. There are two shorter (2.80 Å) and two longer (2.96 Å) K(1)-O(2) bond lengths. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. The K(2)-O(6) bond length is 2.61 Å. Both K(2)-O(1) bond lengths are 2.78 Å. Both K(2)-O(4) bond lengths are 2.81 Å. Both K(2)-O(5) bond lengths are 3.15 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(2) and one O(1) atom. The C(1)-C(2) bond length is 1.46 Å. The C(1)-O(1) bond length is 1.27 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 1.39 Å. The C(2)-N(1) bond length is 1.44 Å. In the third C site, C(3) is bonded in a distorted trigonal planar 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 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(2) atom. The C(4)-C(5) bond length is 1.42 Å. The C(4)-N(2) bond length is 1.43 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. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(2), one O(2), and one O(3) atom. The N(1)-O(2) bond length is 1.25 Å. The N(1)-O(3) bond length is 1.25 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(4), one O(4), and one O(5) atom. The N(2)-O(4) bond length is 1.25 Å. The N(2)-O(5) bond length is 1.26 Å. There are three 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(4) is bonded in a single-bond geometry to one O(6) atom. The H(4)-O(6) bond length is 0.99 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), 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 N(1) atom. In the third O site, O(5) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one N(2) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to one K(1) and one N(1) atom. In the fifth O site, O(6) is bonded in a distorted water-like geometry to one K(2) and two equivalent H(4) atoms. In the sixth O site, O(4) is bonded in a distorted water-like geometry to one K(2) and one N(2) atom. Linkers: 2 O=C1C=CC([N+](=O)[O-])=C[C]1[N+](=O)[O-] ,2 O=C1C=C[C]([N+](=O)[O-])C=C1[N+](=O)[O-]. Metal clusters: 4 [K]. The MOF has largest included sphere 1.80 A, density 1.78 g/cm3, surface area 2489.14 m2/g, accessible volume 0.06 cm3/g