ZnC3N3H2O2CH3 crystallizes in the orthorhombic Pmn2_1 space group. The structure consists of four 02329_fluka molecules inside a ZnC3N3H2O2 framework. In the ZnC3N3H2O2 framework, there are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a tetrahedral geometry to two equivalent N(2), one O(1), and one O(4) atom. Both Zn(1)-N(2) bond lengths are 2.03 Å. The Zn(1)-O(1) bond length is 1.96 Å. The Zn(1)-O(4) bond length is 1.97 Å. In the second Zn site, Zn(2) is bonded in an octahedral geometry to two equivalent N(1), two equivalent N(3), one O(2), and one O(3) atom. Both Zn(2)-N(1) bond lengths are 2.15 Å. Both Zn(2)-N(3) bond lengths are 2.13 Å. The Zn(2)-O(2) bond length is 2.16 Å. The Zn(2)-O(3) bond length is 2.24 Å. There are four inequivalent C sites. In the first C site, C(5) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(5) atom. The C(5)-N(2) bond length is 1.34 Å. The C(5)-N(3) bond length is 1.35 Å. The C(5)-H(5) bond length is 1.09 Å. In the second C site, C(6) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(6) atom. The C(6)-N(1) bond length is 1.33 Å. The C(6)-N(3) bond length is 1.35 Å. The C(6)-H(6) bond length is 1.08 Å. In the third C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(2)-O(1) bond length is 1.29 Å. The C(2)-O(2) bond length is 1.26 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.26 Å. The C(4)-O(4) bond length is 1.29 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(6), and one N(2) atom. The N(1)-N(2) bond length is 1.37 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Zn(1), one C(5), and one N(1) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(5), and one C(6) atom. There are two inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(6) is bonded in a single-bond geometry to one C(6) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(4) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(2) atom. In the third O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(2) and one C(2) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Zn(2) and one C(4) atom. Linkers: 4 C1=NC=N[N]1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 2.05 A, density 1.99 g/cm3, surface area 3832.08 m2/g, accessible volume 0.09 cm3/g