Zn3C18H10(NO2)4 crystallizes in the triclinic P-1 space group. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a rectangular see-saw-like geometry to one N(2), one N(3), one O(3), and one O(5) atom. The Zn(1)-N(2) bond length is 1.94 Å. The Zn(1)-N(3) bond length is 1.94 Å. The Zn(1)-O(3) bond length is 2.02 Å. The Zn(1)-O(5) bond length is 2.00 Å. In the second Zn site, Zn(2) is bonded in a rectangular see-saw-like geometry to one N(1), one N(4), one O(4), and one O(6) atom. The Zn(2)-N(1) bond length is 1.94 Å. The Zn(2)-N(4) bond length is 1.94 Å. The Zn(2)-O(4) bond length is 2.02 Å. The Zn(2)-O(6) bond length is 2.00 Å. In the third Zn site, Zn(3) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(5), and one O(6) atom. The Zn(3)-O(1) bond length is 2.01 Å. The Zn(3)-O(2) bond length is 2.01 Å. The Zn(3)-O(5) bond length is 2.01 Å. The Zn(3)-O(6) bond length is 2.01 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(1)-C(3) bond length is 1.49 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(3) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(4) atom. The C(2)-C(4) bond length is 1.49 Å. The C(2)-O(2) bond length is 1.28 Å. The C(2)-O(4) bond length is 1.28 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(13), and one C(5) atom. The C(3)-C(13) bond length is 1.40 Å. The C(3)-C(5) bond length is 1.42 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(14), one C(2), and one C(6) atom. The C(4)-C(14) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.42 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one H(1) atom. The C(5)-C(7) bond length is 1.40 Å. The C(5)-H(1) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(4), one C(8), and one H(2) atom. The C(6)-C(8) bond length is 1.40 Å. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(5); one C(9); and one H(3,4) atom. The C(7)-C(9) bond length is 1.40 Å. The C(7)-H(3,4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(10); one C(6); and one H(3,4) atom. The C(8)-C(10) bond length is 1.40 Å. The C(8)-H(3,4) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(11), one C(7), and one N(1) atom. The C(9)-C(11) bond length is 1.41 Å. The C(9)-N(1) bond length is 1.40 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(12), one C(8), and one N(2) atom. The C(10)-C(12) bond length is 1.41 Å. The C(10)-N(2) bond length is 1.40 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(13), one C(9), and one N(3) atom. The C(11)-C(13) bond length is 1.38 Å. The C(11)-N(3) bond length is 1.38 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(10), one C(14), and one N(4) atom. The C(12)-C(14) bond length is 1.39 Å. The C(12)-N(4) bond length is 1.38 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(11), one C(3), and one H(5) atom. The C(13)-H(5) 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), one C(4), and one H(6) atom. The C(14)-H(6) bond length is 1.09 Å. In the fifteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(17), one N(1), and one N(3) atom. The C(15)-C(17) bond length is 1.52 Å. The C(15)-N(1) bond length is 1.36 Å. The C(15)-N(3) bond length is 1.34 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(18), one N(2), and one N(4) atom. The C(16)-C(18) bond length is 1.52 Å. The C(16)-N(2) bond length is 1.36 Å. The C(16)-N(4) bond length is 1.34 Å. In the seventeenth C site, C(17) is bonded in a distorted trigonal non-coplanar geometry to one C(15), one H(7), one H(9), and one O(7) atom. The C(17)-H(7) bond length is 1.10 Å. The C(17)-H(9) bond length is 1.10 Å. The C(17)-O(7) bond length is 1.42 Å. In the eighteenth C site, C(18) is bonded in a distorted trigonal non-coplanar geometry to one C(16), one H(10), one H(8), and one O(8) atom. The C(18)-H(10) bond length is 1.10 Å. The C(18)-H(8) bond length is 1.10 Å. The C(18)-O(8) bond length is 1.42 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Zn(2), one C(15), and one C(9) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Zn(1), one C(10), and one C(16) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(11), and one C(15) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Zn(2), one C(12), and one C(16) atom. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3,4) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(14) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(17) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(18) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(17) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(18) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(3) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(3) and one C(2) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Zn(1), one Zn(3), and one O(7) atom. The O(5)-O(7) bond length is 1.51 Å. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Zn(2), one Zn(3), and one O(8) atom. The O(6)-O(8) bond length is 1.51 Å. In the seventh O site, O(7) is bonded in a single-bond geometry to one C(17) and one O(5) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(18) and one O(6) atom. Linkers: 4 [O]OCC1=Nc2ccc(C([O])=O)cc2[N]1. Metal clusters: 6 [Zn]. The MOF has largest included sphere 4.03 A, density 1.70 g/cm3, surface area 3479.42 m2/g, accessible volume 0.21 cm3/g