KC8H(N2O)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 9-coordinate geometry to one N(3), two equivalent N(2), three equivalent N(4), one O(2), and two equivalent O(1) atoms. The K(1)-N(3) bond length is 2.90 Å. There is one shorter (2.96 Å) and one longer (3.02 Å) K(1)-N(2) bond length. There are a spread of K(1)-N(4) bond distances ranging from 2.95-3.15 Å. The K(1)-O(2) bond length is 3.05 Å. There is one shorter (2.86 Å) and one longer (2.90 Å) K(1)-O(1) bond length. There are eight inequivalent C sites. In the first C site, C(7) is bonded in a distorted linear geometry to one C(6) and one N(3) atom. The C(7)-C(6) bond length is 1.41 Å. The C(7)-N(3) bond length is 1.17 Å. In the second C site, C(8) is bonded in a distorted linear geometry to one C(6) and one N(4) atom. The C(8)-C(6) bond length is 1.41 Å. The C(8)-N(4) bond length is 1.17 Å. In the third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one O(2) atom. The C(1)-C(2) bond length is 1.46 Å. The C(1)-N(1) bond length is 1.41 Å. The C(1)-O(2) bond length is 1.23 Å. In the fourth C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(5) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(5) bond length is 1.40 Å. In the fifth C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-C(6) bond length is 1.40 Å. In the sixth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(1), and one O(1) atom. The C(4)-N(1) bond length is 1.37 Å. The C(4)-O(1) bond length is 1.23 Å. In the seventh C site, C(5) is bonded in a distorted linear geometry to one C(2) and one N(2) atom. The C(5)-N(2) bond length is 1.17 Å. In the eighth C site, C(6) is bonded in a trigonal planar geometry to one C(3), one C(7), and one C(8) atom. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one C(4), and one H(1) atom. The N(1)-H(1) bond length is 1.03 Å. In the second N site, N(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(5) atom. In the third N site, N(3) is bonded in a distorted single-bond geometry to one K(1) and one C(7) atom. In the fourth N site, N(4) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(8) atom. H(1) is bonded in a single-bond geometry to one N(1) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a single-bond geometry to one K(1) and one C(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(4) atom. Linkers: 4 N#C[C](C#N)C1=C(C#N)C(=O)NC1=O. Metal clusters: 4 [K]. The MOF has largest included sphere 1.36 A, density 1.76 g/cm3, surface area 2555.65 m2/g, accessible volume 0.03 cm3/g