NaC2N3H2O crystallizes in the hexagonal P-62c space group. Na(1) is bonded to two equivalent N(2), two equivalent N(3), and two equivalent O(1) atoms to form distorted face-sharing NaN4O2 octahedra. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. There are three inequivalent N sites. In the first N site, N(3) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one C(2) atom. In the second N site, N(1) is bonded in a bent 120 degrees geometry to two equivalent C(1) atoms. In the third N site, N(2) is bonded to two equivalent Na(1), one C(1), and one C(2) atom to form distorted corner-sharing NNa2C2 tetrahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. O(1) is bonded in a water-like geometry to two equivalent Na(1), one H(1), and one H(2) atom.
NaC2N3H2O crystallizes in the hexagonal P-62c space group. Na(1) is bonded to two equivalent N(2), two equivalent N(3), and two equivalent O(1) atoms to form distorted face-sharing NaN4O2 octahedra. Both Na(1)-N(2) bond lengths are 2.61 Å. Both Na(1)-N(3) bond lengths are 2.44 Å. Both Na(1)-O(1) bond lengths are 2.44 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. The C(1)-N(2) bond length is 1.37 Å. Both C(1)-N(1) bond lengths are 1.35 Å. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. The C(2)-N(2) bond length is 1.30 Å. The C(2)-N(3) bond length is 1.18 Å. There are three inequivalent N sites. In the first N site, N(3) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one C(2) atom. In the second N site, N(1) is bonded in a bent 120 degrees geometry to two equivalent C(1) atoms. In the third N site, N(2) is bonded to two equivalent Na(1), one C(1), and one C(2) atom to form distorted corner-sharing NNa2C2 tetrahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 1.01 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 0.98 Å. O(1) is bonded in a water-like geometry to two equivalent Na(1), one H(1), and one H(2) atom.