ZnC19N2H14O5 crystallizes in the monoclinic C2/c space group. The structure consists of a ZnC19N2H14O5 framework. Zn(1) is bonded in a tetrahedral geometry to one N(1), one O(1), one O(2), and one O(5) atom. The Zn(1)-N(1) bond length is 2.05 Å. The Zn(1)-O(1) bond length is 1.93 Å. The Zn(1)-O(2) bond length is 1.93 Å. The Zn(1)-O(5) bond length is 2.01 Å. There are nineteen inequivalent C sites. In the first C site, C(9) is bonded in a distorted trigonal planar geometry to one C(17), one N(1), and one H(6) atom. The C(9)-C(17) bond length is 1.38 Å. The C(9)-N(1) bond length is 1.37 Å. The C(9)-H(6) bond length is 0.95 Å. In the second C site, C(10) is bonded in a trigonal planar geometry to one C(17), one C(2), and one C(5) atom. The C(10)-C(17) bond length is 1.39 Å. The C(10)-C(2) bond length is 1.39 Å. The C(10)-C(5) bond length is 1.46 Å. In the third C site, C(11) is bonded in a 3-coordinate geometry to one C(1); one N(2); and two equivalent H(7,8) atoms. The C(11)-C(1) bond length is 1.54 Å. The C(11)-N(2) bond length is 1.49 Å. Both C(11)-H(7,8) bond lengths are 0.99 Å. In the fourth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(18), one N(2), and one H(9) atom. The C(12)-C(18) bond length is 1.35 Å. The C(12)-N(2) bond length is 1.34 Å. The C(12)-H(9) bond length is 0.95 Å. In the fifth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(15), one O(1), and one O(4) atom. The C(13)-C(15) bond length is 1.51 Å. The C(13)-O(1) bond length is 1.25 Å. The C(13)-O(4) bond length is 1.19 Å. In the sixth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(3) atom. The C(14)-C(4) bond length is 1.50 Å. The C(14)-O(2) bond length is 1.25 Å. The C(14)-O(3) bond length is 1.22 Å. In the seventh C site, C(15) is bonded in a trigonal planar geometry to one C(13), one C(3), and one C(6) atom. The C(15)-C(3) bond length is 1.39 Å. The C(15)-C(6) bond length is 1.38 Å. In the eighth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(10) atom. The C(16)-N(2) bond length is 1.35 Å. The C(16)-H(10) bond length is 0.95 Å. In the ninth C site, C(17) is bonded in a distorted single-bond geometry to one C(10), one C(9), and one H(11) atom. The C(17)-H(11) bond length is 0.95 Å. In the tenth C site, C(18) is bonded in a distorted single-bond geometry to one C(12), one C(5), and one H(12) atom. The C(18)-C(5) bond length is 1.40 Å. The C(18)-H(12) bond length is 0.95 Å. In the eleventh C site, C(19) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(13) atom. The C(19)-C(2) bond length is 1.37 Å. The C(19)-N(1) bond length is 1.37 Å. The C(19)-H(13) bond length is 0.95 Å. In the twelfth C site, C(1) is bonded in a trigonal planar geometry to one C(11), one C(6), and one C(7) atom. The C(1)-C(6) bond length is 1.38 Å. The C(1)-C(7) bond length is 1.40 Å. In the thirteenth C site, C(2) is bonded in a distorted single-bond geometry to one C(10), one C(19), and one H(1) atom. The C(2)-H(1) bond length is 0.95 Å. In the fourteenth C site, C(3) is bonded in a distorted single-bond geometry to one C(15), one C(4), and one H(2) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(2) bond length is 0.95 Å. In the fifteenth C site, C(4) is bonded in a trigonal planar geometry to one C(14), one C(3), and one C(7) atom. The C(4)-C(7) bond length is 1.38 Å. In the sixteenth C site, C(5) is bonded in a trigonal planar geometry to one C(10), one C(18), and one C(8) atom. The C(5)-C(8) bond length is 1.41 Å. In the seventeenth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(15), and one H(3) atom. The C(6)-H(3) bond length is 0.95 Å. In the eighteenth C site, C(7) is bonded in a distorted single-bond geometry to one C(1), one C(4), and one H(4) atom. The C(7)-H(4) bond length is 0.95 Å. In the nineteenth C site, C(8) is bonded in a distorted single-bond geometry to one C(5) and one H(5) atom. The C(8)-H(5) bond length is 0.95 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Zn(1), one C(19), and one C(9) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(16) atom. There are thirteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7,8) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(12) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(16) atom. In the tenth H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the eleventh H site, H(12) is bonded in a single-bond geometry to one C(18) atom. In the twelfth H site, H(13) is bonded in a single-bond geometry to one C(19) atom. In the thirteenth H site, H(14) is bonded in a single-bond geometry to one O(5) atom. The H(14)-O(5) bond length is 1.08 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(13) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(14) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(14) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(13) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(1) and one H(14) atom. Linkers: 8 [O]C(=O)c1cc(CN2[CH]C=C(c3ccncc3)C=C2)cc(C([O])=O)c1. Metal clusters: 8 O=[C]O[Zn](O)O[C]=O. The MOF has largest included sphere 4.04 A, density 1.35 g/cm3, surface area 4798.87 m2/g, accessible volume 0.24 cm3/g