ZnC20H16(NO2)2 is alpha U structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of two ZnC20H16(NO2)2 clusters. Zn(1) is bonded in a 6-coordinate geometry to one N(1), one N(3), one O(2), one O(3), one O(6), and one O(7) atom. The Zn(1)-N(1) bond length is 2.11 Å. The Zn(1)-N(3) bond length is 2.10 Å. The Zn(1)-O(2) bond length is 2.07 Å. The Zn(1)-O(3) bond length is 2.03 Å. The Zn(1)-O(6) bond length is 2.36 Å. The Zn(1)-O(7) bond length is 2.47 Å. There are twenty inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(7) atom. The C(1)-C(11) bond length is 1.49 Å. The C(1)-C(13) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.40 Å. In the second C site, C(4) is bonded in a trigonal planar geometry to one C(16), one C(18), and one C(6) atom. The C(4)-C(16) bond length is 1.49 Å. The C(4)-C(18) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.40 Å. In the third C site, C(6) is bonded in a distorted single-bond geometry to one C(4) and one H(1,2) atom. The C(6)-H(1,2) bond length is 1.09 Å. In the fourth C site, C(7) is bonded in a distorted single-bond geometry to one C(1) and one H(3,4) atom. The C(7)-H(3,4) bond length is 1.09 Å. In the fifth C site, C(9) is bonded in a distorted single-bond geometry to one C(21) and one H(5,6) atom. The C(9)-C(21) bond length is 1.40 Å. The C(9)-H(5,6) bond length is 1.09 Å. In the sixth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(3), and one O(7) atom. The C(11)-O(3) bond length is 1.30 Å. The C(11)-O(7) bond length is 1.26 Å. In the seventh C site, C(13) is bonded in a distorted single-bond geometry to one C(1) and one H(7,8) atom. The C(13)-H(7,8) bond length is 1.09 Å. In the eighth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(6) atom. The C(16)-O(2) bond length is 1.29 Å. The C(16)-O(6) bond length is 1.27 Å. In the ninth C site, C(18) is bonded in a distorted single-bond geometry to one C(4) and one H(9,10) atom. The C(18)-H(9,10) bond length is 1.09 Å. In the tenth C site, C(19) is bonded in a distorted trigonal planar geometry to one C(21), one C(35), and one N(3) atom. The C(19)-C(21) bond length is 1.48 Å. The C(19)-C(35) bond length is 1.40 Å. The C(19)-N(3) bond length is 1.35 Å. In the eleventh C site, C(21) is bonded in a distorted single-bond geometry to one C(19), one C(9), and one N(1) atom. The C(21)-N(1) bond length is 1.35 Å. In the twelfth C site, C(23) is bonded in a distorted single-bond geometry to one C(25) and one H(11) atom. The C(23)-C(25) bond length is 1.40 Å. The C(23)-H(11) bond length is 1.09 Å. In the thirteenth C site, C(25) is bonded in a trigonal planar geometry to one C(23), one C(27), and one C(29) atom. The C(25)-C(27) bond length is 1.49 Å. The C(25)-C(29) bond length is 1.40 Å. In the fourteenth C site, C(27) is bonded in a distorted trigonal non-coplanar geometry to one C(25), one H(13), one H(15), and one H(17) atom. The C(27)-H(13) bond length is 1.10 Å. The C(27)-H(15) bond length is 1.10 Å. The C(27)-H(17) bond length is 1.10 Å. In the fifteenth C site, C(29) is bonded in a distorted bent 120 degrees geometry to one C(25), one N(1), and one H(19) atom. The C(29)-N(1) bond length is 1.34 Å. The C(29)-H(19) bond length is 1.09 Å. In the sixteenth C site, C(31) is bonded in a trigonal planar geometry to one C(33); one C(37,38); and one C(39,40) atom. The C(31)-C(33) bond length is 1.40 Å. The C(31)-C(37,38) bond length is 1.40 Å. The C(31)-C(39,40) bond length is 1.50 Å. In the seventeenth C site, C(33) is bonded in a distorted trigonal planar geometry to one C(31), one N(3), and one H(21) atom. The C(33)-N(3) bond length is 1.34 Å. The C(33)-H(21) bond length is 1.09 Å. In the eighteenth C site, C(35) is bonded in a distorted single-bond geometry to one C(19) and one H(23) atom. The C(35)-H(23) bond length is 1.09 Å. In the nineteenth C site, C(37,38) is bonded in a distorted single-bond geometry to one C(31) and one H(25,26) atom. The C(37,38)-H(25,26) bond length is 1.09 Å. In the twentieth C site, C(39,40) is bonded in a distorted trigonal non-coplanar geometry to one C(31); one H(27,28); one H(29,30); and one H(31,32) atom. The C(39,40)-H(27,28) bond length is 1.09 Å. The C(39,40)-H(29,30) bond length is 1.10 Å. The C(39,40)-H(31,32) bond length is 1.10 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(21), and one C(29) atom. In the second N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(19), and one C(33) atom. There are sixteen inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(5) atom. The H(1,2)-C(5) bond length is 1.09 Å. In the second H site, H(3,4) is bonded in a single-bond geometry to one C(7) atom. In the third H site, H(5,6) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(7,8) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(9,10) is bonded in a single-bond geometry to one C(17) atom. The H(9,10)-C(17) bond length is 1.09 Å. In the sixth H site, H(11) is bonded in a single-bond geometry to one C(23) atom. In the seventh H site, H(13) is bonded in a single-bond geometry to one C(27) atom. In the eighth H site, H(15) is bonded in a single-bond geometry to one C(27) atom. In the ninth H site, H(17) is bonded in a single-bond geometry to one C(27) atom. In the tenth H site, H(19) is bonded in a single-bond geometry to one C(29) atom. In the eleventh H site, H(21) is bonded in a single-bond geometry to one C(33) atom. In the twelfth H site, H(23) is bonded in a single-bond geometry to one C(35) atom. In the thirteenth H site, H(25,26) is bonded in a single-bond geometry to one C(37,38) atom. In the fourteenth H site, H(27,28) is bonded in a single-bond geometry to one C(39,40) atom. In the fifteenth H site, H(29,30) is bonded in a single-bond geometry to one C(39,40) atom. In the sixteenth H site, H(31,32) is bonded in a single-bond geometry to one C(39,40) atom. There are four inequivalent O sites. In the first O site, O(2) is bonded in an L-shaped geometry to one Zn(1) and one C(16) atom. In the second O site, O(3) is bonded in a water-like geometry to one Zn(1) and one C(11) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to one Zn(1) and one C(16) atom. In the fourth O site, O(7) is bonded in a single-bond geometry to one Zn(1) and one C(11) atom. Linkers: 1 CC1=CN2C(=C3C=CC(C)=CN3[Zn]2(OC(=O)c2ccc(C([O])=O)cc2)OC(=O)c2ccc(C([O])=O)cc2)C=C1. Metal clusters: 1 O=[C]O[Zn]O[C]=O. The MOF has largest included sphere 1.83 A, density 1.58 g/cm3, surface area 4750.98 m2/g, accessible volume 0.13 cm3/g