ZnC20H14(NO)4 crystallizes in the triclinic P-1 space group. Zn(1) is bonded in a tetrahedral geometry to one N(1), one N(2), one O(3), and one O(4) atom. The Zn(1)-N(1) bond length is 2.06 Å. The Zn(1)-N(2) bond length is 2.06 Å. The Zn(1)-O(3) bond length is 1.97 Å. The Zn(1)-O(4) bond length is 1.97 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(11); one C(5); and one H(1,2) atom. The C(1)-C(11) bond length is 1.40 Å. The C(1)-C(5) bond length is 1.39 Å. The C(1)-H(1,2) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(12); one C(6); and one H(1,2) atom. The C(2)-C(12) bond length is 1.40 Å. The C(2)-C(6) bond length is 1.39 Å. The C(2)-H(1,2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(13,14); one C(17); and one C(7,8) atom. The C(3)-C(13,14) bond length is 1.41 Å. The C(3)-C(17) bond length is 1.45 Å. The C(3)-C(7,8) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(13,14); one C(18); and one C(7,8) atom. The C(4)-C(13,14) bond length is 1.41 Å. The C(4)-C(18) bond length is 1.45 Å. The C(4)-C(7,8) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(1), one C(11), and one H(3) atom. The C(5)-C(11) bond length is 1.40 Å. The C(5)-H(3) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(12), one C(2), and one H(4) atom. The C(6)-C(12) bond length is 1.40 Å. The C(6)-H(4) bond length is 1.09 Å. In the seventh C site, C(7,8) is bonded in a distorted trigonal planar geometry to one C(3); one N(1); and one H(5,6) atom. The C(7,8)-N(1) bond length is 1.34 Å. The C(7,8)-H(5,6) bond length is 1.09 Å. In the eighth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(1), and one O(3) atom. The C(9)-C(11) bond length is 1.50 Å. The C(9)-O(1) bond length is 1.25 Å. The C(9)-O(3) bond length is 1.30 Å. In the ninth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(2), and one O(4) atom. The C(10)-C(12) bond length is 1.50 Å. The C(10)-O(2) bond length is 1.25 Å. The C(10)-O(4) bond length is 1.30 Å. In the tenth C site, C(11) is bonded in a trigonal planar geometry to one C(1), one C(5), and one C(9) atom. In the eleventh C site, C(12) is bonded in a trigonal planar geometry to one C(10), one C(2), and one C(6) atom. In the twelfth C site, C(13,14) is bonded in a distorted trigonal planar geometry to one C(19,20); one C(3); and one H(7,8) atom. The C(13,14)-C(19,20) bond length is 1.39 Å. The C(13,14)-H(7,8) bond length is 1.09 Å. In the thirteenth C site, C(15,16) is bonded in a distorted trigonal planar geometry to one C(19,20); one N(1); and one H(9,10) atom. The C(15,16)-C(19,20) bond length is 1.39 Å. The C(15,16)-N(1) bond length is 1.35 Å. The C(15,16)-H(9,10) bond length is 1.09 Å. In the fourteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(3), and one H(11) atom. The C(17)-N(3) bond length is 1.29 Å. The C(17)-H(11) bond length is 1.10 Å. In the fifteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(4), and one H(12) atom. The C(18)-N(4) bond length is 1.29 Å. The C(18)-H(12) bond length is 1.10 Å. In the sixteenth C site, C(19,20) is bonded in a distorted trigonal planar geometry to one C(13,14); one C(15,16); and one H(13,14) atom. The C(19,20)-H(13,14) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Zn(1); one C(15,16); and one C(7,8) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Zn(1); one C(15,16); and one C(7,8) atom. The N(2)-C(15,16) bond length is 1.35 Å. The N(2)-C(7,8) bond length is 1.34 Å. In the third N site, N(3) is bonded in a distorted single-bond geometry to one C(17) and one N(3) atom. The N(3)-N(3) bond length is 1.39 Å. In the fourth N site, N(4) is bonded in a distorted single-bond geometry to one C(18) and one N(4) atom. The N(4)-N(4) bond length is 1.39 Å. There are nine inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(5) 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(5,6) is bonded in a single-bond geometry to one C(7,8) atom. In the fifth H site, H(7,8) is bonded in a single-bond geometry to one C(13,14) atom. In the sixth H site, H(9,10) is bonded in a single-bond geometry to one C(15,16) atom. In the seventh H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the eighth H site, H(12) is bonded in a single-bond geometry to one C(18) atom. In the ninth H site, H(13,14) is bonded in a single-bond geometry to one C(19,20) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one C(9) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(10) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(9) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(10) atom. Linkers: 2 [O]C(=O)c1ccc(C([O])=O)cc1 ,2 [CH]([N][N][CH]c1cccnc1)c1cccnc1. Metal clusters: 2 O=[C]O[Zn]O[C]=O. The MOF has largest included sphere 2.18 A, density 1.62 g/cm3, surface area 4506.95 m2/g, accessible volume 0.17 cm3/g