ZnC20H14(NO)4 crystallizes in the triclinic P-1 space group. Zn(1) is bonded in a tetrahedral geometry to one N(3), one N(4), one O(1), and one O(2) atom. The Zn(1)-N(3) bond length is 2.00 Å. The Zn(1)-N(4) bond length is 2.00 Å. The Zn(1)-O(1) bond length is 1.99 Å. The Zn(1)-O(2) bond length is 1.99 Å. There are eighteen inequivalent C sites. In the first C site, C(1,2) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(7) atom. The C(1,2)-C(3) bond length is 1.41 Å. The C(1,2)-C(5) bond length is 1.41 Å. The C(1,2)-C(7) bond length is 1.46 Å. In the second C site, C(3) is bonded in a distorted single-bond geometry to one C(1,2) and one H(3,4) atom. The C(3)-H(3,4) bond length is 1.09 Å. In the third C site, C(4) is bonded in a distorted single-bond geometry to one C(1,2) and one H(3,4) atom. The C(4)-C(1,2) bond length is 1.41 Å. The C(4)-H(3,4) bond length is 1.09 Å. In the fourth C site, C(5) is bonded in a distorted single-bond geometry to one C(1,2) and one H(5,6) atom. The C(5)-H(5,6) bond length is 1.09 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(1,2) and one H(5,6) atom. The C(6)-C(1,2) bond length is 1.41 Å. The C(6)-H(5,6) bond length is 1.09 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(1,2); one C(9,10); and one N(1) atom. The C(7)-C(9,10) bond length is 1.38 Å. The C(7)-N(1) bond length is 1.39 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(1,2); one C(9,10); and one N(2) atom. The C(8)-C(1,2) bond length is 1.46 Å. The C(8)-C(9,10) bond length is 1.38 Å. The C(8)-N(2) bond length is 1.39 Å. In the eighth C site, C(9,10) is bonded in a distorted bent 120 degrees geometry to one C(7), one N(3), and one H(7) atom. The C(9,10)-N(3) bond length is 1.38 Å. The C(9,10)-H(7) bond length is 1.08 Å. In the ninth C site, C(11) is bonded in a trigonal planar geometry to one N(1); one N(3); and one H(9,10) atom. The C(11)-N(1) bond length is 1.35 Å. The C(11)-N(3) bond length is 1.34 Å. The C(11)-H(9,10) bond length is 1.08 Å. In the tenth C site, C(12) is bonded in a trigonal planar geometry to one N(2); one N(4); and one H(9,10) atom. The C(12)-N(2) bond length is 1.35 Å. The C(12)-N(4) bond length is 1.34 Å. The C(12)-H(9,10) bond length is 1.08 Å. In the eleventh C site, C(13) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(19) atom. The C(13)-C(15) bond length is 1.40 Å. The C(13)-C(17) bond length is 1.40 Å. The C(13)-C(19) bond length is 1.50 Å. In the twelfth C site, C(14) is bonded in a trigonal planar geometry to one C(16), one C(18), and one C(20) atom. The C(14)-C(16) bond length is 1.40 Å. The C(14)-C(18) bond length is 1.40 Å. The C(14)-C(20) bond length is 1.50 Å. In the thirteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(13), one C(17), and one H(11) atom. The C(15)-C(17) bond length is 1.39 Å. The C(15)-H(11) bond length is 1.09 Å. In the fourteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(14), one C(18), and one H(12) atom. The C(16)-C(18) bond length is 1.39 Å. The C(16)-H(12) bond length is 1.09 Å. In the fifteenth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(13); one C(15); and one H(13,14) atom. The C(17)-H(13,14) bond length is 1.09 Å. In the sixteenth C site, C(18) is bonded in a distorted trigonal planar geometry to one C(14); one C(16); and one H(13,14) atom. The C(18)-H(13,14) bond length is 1.09 Å. In the seventeenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(1), and one O(3) atom. The C(19)-O(1) bond length is 1.29 Å. The C(19)-O(3) bond length is 1.26 Å. In the eighteenth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(2), and one O(4) atom. The C(20)-O(2) bond length is 1.29 Å. The C(20)-O(4) bond length is 1.26 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(11), one C(7), and one H(1) atom. The N(1)-H(1) bond length is 1.05 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(12), one C(8), and one H(2) atom. The N(2)-H(2) bond length is 1.05 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one Zn(1); one C(11); and one C(9,10) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Zn(1); one C(12); and one C(9,10) atom. The N(4)-C(9,10) bond length is 1.38 Å. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one N(1) and one O(4) atom. The H(1)-O(4) bond length is 1.70 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one N(2) and one O(3) atom. The H(2)-O(3) bond length is 1.70 Å. In the third H site, H(3,4) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(5,6) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(7) is bonded in a single-bond geometry to one C(9,10) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one C(9,10) atom. The H(8)-C(9,10) bond length is 1.08 Å. In the seventh H site, H(9,10) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(11) is bonded in a single-bond geometry to one C(15) atom. In the ninth H site, H(12) is bonded in a single-bond geometry to one C(16) atom. In the tenth H site, H(13,14) is bonded in a single-bond geometry to one C(17) atom. There are four 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(19) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(20) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one C(19) and one H(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one C(20) and one H(1) atom. Linkers: 2 [O]C(=O)c1ccc(C([O])=O)cc1 ,2 c1ncc(-c2ccc(-c3cnc[nH]3)cc2)[nH]1. Metal clusters: 2 O=[C]O[Zn]O[C]=O. The MOF has largest included sphere 1.79 A, density 1.72 g/cm3, surface area 4329.90 m2/g, accessible volume 0.12 cm3/g