ZnC10N3H5O4 crystallizes in the orthorhombic P2_12_12_1 space group. Zn(1) is bonded in a trigonal bipyramidal geometry to one N(1), one N(2), one N(3), one O(1), and one O(4) atom. The Zn(1)-N(1) bond length is 1.99 Å. The Zn(1)-N(2) bond length is 2.02 Å. The Zn(1)-N(3) bond length is 2.02 Å. The Zn(1)-O(1) bond length is 2.41 Å. The Zn(1)-O(4) bond length is 2.16 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(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(1) bond length is 1.25 Å. The C(1)-O(2) bond length is 1.32 Å. In the second C site, C(2) is bonded in a 3-coordinate geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-N(1) bond length is 1.37 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one N(2) atom. The C(3)-C(4) bond length is 1.48 Å. The C(3)-N(2) bond length is 1.37 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(4)-O(3) bond length is 1.28 Å. The C(4)-O(4) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(6), one N(1), and one N(2) atom. The C(5)-C(6) bond length is 1.47 Å. The C(5)-N(1) bond length is 1.35 Å. The C(5)-N(2) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(10), one C(5), and one C(7) atom. The C(6)-C(10) bond length is 1.39 Å. The C(6)-C(7) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(6), one C(8), and one H(1) atom. The C(7)-C(8) bond length is 1.39 Å. The C(7)-H(1) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one H(2) atom. The C(8)-C(9) bond length is 1.39 Å. The C(8)-H(2) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(8), one N(3), and one H(3) atom. The C(9)-N(3) bond length is 1.35 Å. The C(9)-H(3) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(6), one N(3), and one H(4) atom. The C(10)-N(3) bond length is 1.35 Å. The C(10)-H(4) bond length is 1.09 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Zn(1), one C(2), and one C(5) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(3), and one C(5) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(10), and one C(9) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(7) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(10) atom. In the fifth H site, H(5) is bonded in a linear geometry to one O(2) and one O(3) atom. The H(5)-O(2) bond length is 1.07 Å. The H(5)-O(3) bond length is 1.44 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Zn(1) and one C(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one C(1) and one H(5) atom. In the third O site, O(3) is bonded in a water-like geometry to one C(4) and one H(5) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one Zn(1) and one C(4) atom. Linkers: 3 [O]C(=O)C1=NC(c2cccnc2)=N[C]1C(=O)O ,1 [O]C(=O)C1=C(C(=O)O)[N]C(c2cccnc2)=N1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 2.57 A, density 1.72 g/cm3, surface area 3639.94 m2/g, accessible volume 0.19 cm3/g