Zn2C15N5H7O6(HC2N)2 crystallizes in the tetragonal P4_12_12 space group. The structure consists of eight n-methyl methanimine molecules inside a Zn2C15N5H7O6 framework. In the Zn2C15N5H7O6 framework, Zn(1) is bonded in a 5-coordinate geometry to one N(1), one N(3), one O(1), one O(2), and one O(3) atom. The Zn(1)-N(1) bond length is 2.12 Å. The Zn(1)-N(3) bond length is 2.02 Å. The Zn(1)-O(1) bond length is 1.98 Å. The Zn(1)-O(2) bond length is 2.40 Å. The Zn(1)-O(3) bond length is 2.02 Å. There are nine inequivalent C sites. In the first C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(2) atom. The C(2)-N(1) bond length is 1.33 Å. The C(2)-H(2) bond length is 0.93 Å. In the second C site, C(3) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(3) atom. The C(3)-N(1) bond length is 1.33 Å. The C(3)-H(3) bond length is 0.93 Å. In the third C site, C(5) is bonded in a 2-coordinate geometry to one N(3) and one N(4) atom. The C(5)-N(3) bond length is 1.34 Å. The C(5)-N(4) bond length is 1.33 Å. In the fourth C site, C(6) is bonded in a distorted single-bond geometry to one C(10), one C(7), and one H(4) atom. The C(6)-C(10) bond length is 1.38 Å. The C(6)-C(7) bond length is 1.39 Å. The C(6)-H(4) bond length is 0.93 Å. In the fifth C site, C(7) is bonded in a trigonal planar geometry to one C(11), one C(6), and one C(8) atom. The C(7)-C(11) bond length is 1.39 Å. The C(7)-C(8) bond length is 1.50 Å. In the sixth C site, C(8) is bonded in a bent 120 degrees geometry to one C(7), one O(2), and one O(3) atom. The C(8)-O(2) bond length is 1.24 Å. The C(8)-O(3) bond length is 1.26 Å. In the seventh C site, C(9) is bonded in a bent 120 degrees geometry to one C(10) and two equivalent O(1) atoms. The C(9)-C(10) bond length is 1.50 Å. Both C(9)-O(1) bond lengths are 1.25 Å. In the eighth C site, C(10) is bonded in a trigonal planar geometry to one C(9) and two equivalent C(6) atoms. In the ninth C site, C(11) is bonded in a single-bond geometry to two equivalent C(7) and one H(5) atom. The C(11)-H(5) bond length is 0.93 Å. There are three inequivalent N sites. In the first N site, N(4) is bonded in a water-like geometry to two equivalent C(5) atoms. In the second N site, N(1) is bonded in a trigonal planar geometry to one Zn(1), one C(2), and one C(3) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(5), and one N(3) atom. The N(3)-N(3) bond length is 1.35 Å. There are four inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(11) 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 Zn(1) and one C(9) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Zn(1) and one C(8) atom. In the third O site, O(3) is bonded in a water-like geometry to one Zn(1) and one C(8) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1 ,4 c1cnc(C2=NN=C(c3cnccn3)[N]2)cn1. Metal clusters: 4 O=[C]O[Zn]1=NN=[Zn](O[C]=O)O[C]O1. RCSR code: srs. The MOF has largest included sphere 4.79 A, density 1.26 g/cm3, surface area 3893.31 m2/g, accessible volume 0.42 cm3/g