ZnC26H16(NO)4 crystallizes in the orthorhombic Imma space group. Zn(1) is bonded in a square pyramidal geometry to one N(2), two equivalent O(1), and two equivalent O(2) atoms. The Zn(1)-N(2) bond length is 2.08 Å. Both Zn(1)-O(1) bond lengths are 2.07 Å. Both Zn(1)-O(2) bond lengths are 2.05 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one H(1) atom. The C(1)-C(3) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.39 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(5), one C(6), and one H(2) atom. The C(2)-C(5) bond length is 1.41 Å. The C(2)-C(6) bond length is 1.39 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.49 Å. The C(3)-C(6) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(4)-O(1) bond length is 1.28 Å. The C(4)-O(2) bond length is 1.28 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(2), one C(7), and one N(1) atom. The C(5)-C(7) bond length is 1.41 Å. The C(5)-N(1) bond length is 1.41 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one H(3) atom. The C(6)-H(3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(1), one C(5), and one H(4) atom. The C(7)-H(4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(8) and two equivalent C(10) atoms. The C(8)-C(8) bond length is 1.48 Å. Both C(8)-C(10) bond lengths are 1.41 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to two equivalent C(11) and one N(1) atom. Both C(9)-C(11) bond lengths are 1.40 Å. The C(9)-N(1) bond length is 1.42 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(8), and one H(5) atom. The C(10)-C(11) bond length is 1.39 Å. The C(10)-H(5) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one C(9), and one H(6) atom. The C(11)-H(6) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(14) and two equivalent C(15) atoms. The C(12)-C(14) bond length is 1.47 Å. Both C(12)-C(15) bond lengths are 1.40 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(15), one N(2), and one H(7) atom. The C(13)-C(15) bond length is 1.39 Å. The C(13)-N(2) bond length is 1.35 Å. The C(13)-H(7) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(12) and two equivalent N(3) atoms. Both C(14)-N(3) bond lengths are 1.35 Å. In the fifteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(12), one C(13), and one H(8) atom. The C(15)-H(8) 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 C(9) and two equivalent C(5) atoms. In the second N site, N(2) is bonded in a trigonal planar geometry to one Zn(1) and two equivalent C(13) atoms. In the third N site, N(3) is bonded in a single-bond geometry to one C(14) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) 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(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(13) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(15) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(4) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(4) atom. Linkers: 2 [O]C(=O)c1ccc(N(c2ccc(C([O])=O)cc2)c2ccc(-c3ccc(N(c4ccc(C([O])=O)cc4)c4ccc(C([O])=O)cc4)cc3)cc2)cc1 ,1 c1cc(-c2nnc(-c3ccncc3)nn2)ccn1 ,1 c1cc(C2=N[N]C(c3ccncc3)=N[N]2)ccn1. Metal clusters: 2 [C]1O[Zn]234O[C]O[Zn]2(O1)(O[C]O3)O[C]O4. RCSR code: lvt. The MOF has largest included sphere 10.71 A, density 0.46 g/cm3, surface area 4769.82 m2/g, accessible volume 1.71 cm3/g