ZnC5N2H8O5CH2 crystallizes in the orthorhombic Imm2 space group. The structure consists of four 02329_fluka molecules inside a ZnC5N2H8O5 framework. In the ZnC5N2H8O5 framework, Zn(1) is bonded to one N(1), one O(3), two equivalent O(1), and two equivalent O(2) atoms to form ZnNO5 octahedra that share  a cornercorner with one C(3)H2N2 tetrahedra and corners with two equivalent C(4)H2N2 tetrahedra. The Zn(1)-N(1) bond length is 2.20 Å. The Zn(1)-O(3) bond length is 2.14 Å. Both Zn(1)-O(1) bond lengths are 2.14 Å. Both Zn(1)-O(2) bond lengths are 2.14 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(3) is bonded to two equivalent N(1) and two equivalent H(3) atoms to form CH2N2 tetrahedra that share corners with two equivalent Zn(1)NO5 octahedra and corners with four equivalent C(4)H2N2 tetrahedra. The corner-sharing octahedral tilt angles are 69°. Both C(3)-N(1) bond lengths are 1.49 Å. Both C(3)-H(3) bond lengths are 1.09 Å. In the third C site, C(4) is bonded to one N(1), one N(2), one H(4), and one H(5) atom to form CH2N2 tetrahedra that share  a cornercorner with one Zn(1)NO5 octahedra,  a cornercorner with one C(3)H2N2 tetrahedra,  a cornercorner with one C(5)H2N2 tetrahedra, and corners with two equivalent C(4)H2N2 tetrahedra. The corner-sharing octahedral tilt angles are 69°. The C(4)-N(1) bond length is 1.50 Å. The C(4)-N(2) bond length is 1.46 Å. The C(4)-H(4) bond length is 1.10 Å. The C(4)-H(5) bond length is 1.10 Å. In the fourth C site, C(5) is bonded to two equivalent N(2) and two equivalent H(6) atoms to form corner-sharing CH2N2 tetrahedra. Both C(5)-N(2) bond lengths are 1.47 Å. Both C(5)-H(6) bond lengths are 1.10 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Zn(1), one C(3), and two equivalent C(4) atoms to form corner-sharing NZnC3 tetrahedra. In the second N site, N(2) is bonded in a trigonal non-coplanar geometry to one C(5) and two equivalent C(4) atoms. There are five inequivalent H sites. In the first H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(7) is bonded in a distorted single-bond geometry to one O(1) and one O(3) atom. The H(7)-O(1) bond length is 1.67 Å. The H(7)-O(3) bond length is 1.00 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(1), and one H(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Zn(1) and two equivalent H(7) atoms. Linkers: 1 C1N2CN3CN1CN(C2)C3 ,2 [O]C(=O)CC([O])=O. Metal clusters: 2 [Zn]. RCSR code: hcb. The MOF has largest included sphere 2.32 A, density 2.03 g/cm3, surface area 3317.46 m2/g, accessible volume 0.06 cm3/g