ZnC10N3H5O4 crystallizes in the orthorhombic P2_12_12_1 space group. Zn(1) is bonded in a square pyramidal geometry to one N(1), one N(2), one N(3), one O(2), and one O(4) atom. The Zn(1)-N(1) bond length is 2.22 Å. The Zn(1)-N(2) bond length is 2.19 Å. The Zn(1)-N(3) bond length is 2.12 Å. The Zn(1)-O(2) bond length is 2.09 Å. The Zn(1)-O(4) bond length is 2.15 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(1), and one O(4) atom. The C(1)-C(8) bond length is 1.47 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(4) bond length is 1.24 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(3) atom. The C(2)-N(3) bond length is 1.35 Å. The C(2)-H(3) bond length is 0.93 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(7), one N(3), and one H(4) atom. The C(3)-C(7) bond length is 1.38 Å. The C(3)-N(3) bond length is 1.35 Å. The C(3)-H(4) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one N(1) atom. The C(4)-C(10) bond length is 1.49 Å. The C(4)-C(8) bond length is 1.38 Å. The C(4)-N(1) bond length is 1.37 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(6), one C(7), and one C(9) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.37 Å. The C(5)-C(9) bond length is 1.48 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(5) atom. The C(6)-H(5) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(2) atom. The C(7)-H(2) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(1), one C(4), and one N(2) atom. The C(8)-N(2) bond length is 1.35 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(5), one N(1), and one N(2) atom. The C(9)-N(1) bond length is 1.35 Å. The C(9)-N(2) bond length is 1.34 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(3) atom. The C(10)-O(2) bond length is 1.24 Å. The C(10)-O(3) bond length is 1.27 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), one C(4), and one C(9) atom. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), one C(8), and one C(9) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(2), and one C(3) atom. There are five 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 0.82 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one C(1) and one H(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(10) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one C(10) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. Linkers: 1 [O]C(=O)[C]1N=C(c2ccncc2)N=C1C(=O)O ,2 [O]C(=O)C1=C(C(=O)O)N=C(c2ccncc2)[N]1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 4.75 A, density 1.26 g/cm3, surface area 3773.35 m2/g, accessible volume 0.47 cm3/g