NaC3N2HO3(CH)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of eight 02329_fluka molecules inside a NaC3N2HO3 framework. In the NaC3N2HO3 framework, Na(1) is bonded in a 6-coordinate geometry to one N(2), one O(1), one O(3), and three equivalent O(2) atoms. The Na(1)-N(2) bond length is 2.49 Å. The Na(1)-O(1) bond length is 2.37 Å. The Na(1)-O(3) bond length is 2.41 Å. There are a spread of Na(1)-O(2) bond distances ranging from 2.36-2.77 Å. There are three inequivalent C sites. In the first C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(3) atom. The C(5)-N(2) bond length is 1.32 Å. The C(5)-H(3) bond length is 1.09 Å. In the second C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one N(2) atom. The C(1)-C(2) bond length is 1.45 Å. The C(1)-N(1) bond length is 1.44 Å. The C(1)-N(2) bond length is 1.35 Å. In the third C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one O(2) atom. The C(2)-O(2) bond length is 1.29 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one O(1), and one O(3) atom. The N(1)-O(1) bond length is 1.26 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 Na(1), one C(1), and one C(5) atom. H(3) is bonded in a single-bond geometry to one C(5) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(1) and one N(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one C(2) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Na(1) and one N(1) atom. Linkers: 4 [O]c1cccnc1[N+](=O)[O-]. Metal clusters: 4 [Na]. The MOF has largest included sphere 1.71 A, density 1.80 g/cm3, surface area 2752.52 m2/g, accessible volume 0.03 cm3/g