Zn4C78N18H54O13 crystallizes in the trigonal P31c space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1) and three equivalent O(2) atoms to form corner-sharing ZnO4 tetrahedra. The Zn(1)-O(1) bond length is 1.93 Å. All Zn(1)-O(2) bond lengths are 1.96 Å. In the second Zn site, Zn(2) is bonded to one N(1), one O(1), one O(3), and one O(4) atom to form ZnNO3 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and corners with two equivalent Zn(2)NO3 tetrahedra. The Zn(2)-N(1) bond length is 2.00 Å. The Zn(2)-O(1) bond length is 1.98 Å. The Zn(2)-O(3) bond length is 2.05 Å. The Zn(2)-O(4) bond length is 1.97 Å. There are twenty-six inequivalent C sites. In the first C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(2) bond length is 1.40 Å. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(1) bond length is 1.09 Å. In the second C site, C(25) is bonded in a trigonal planar geometry to one C(10), one C(24), and one C(26) atom. The C(25)-C(10) bond length is 1.48 Å. The C(25)-C(24) bond length is 1.40 Å. The C(25)-C(26) bond length is 1.40 Å. In the third C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(4)-H(2) bond length is 1.09 Å. In the fourth C site, C(26) is bonded in a distorted single-bond geometry to one C(21), one C(25), and one H(18) atom. The C(26)-C(21) bond length is 1.40 Å. The C(26)-H(18) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one N(3) atom. The C(5)-N(3) bond length is 1.43 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(7) and one H(3) atom. The C(6)-C(7) bond length is 1.39 Å. 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(2), one C(6), and one H(4) atom. The C(7)-C(2) bond length is 1.40 Å. The C(7)-H(4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal non-coplanar geometry to one C(9), one H(5), one H(6), and one H(7) atom. The C(8)-C(9) bond length is 1.48 Å. The C(8)-H(5) bond length is 1.09 Å. The C(8)-H(6) bond length is 1.10 Å. The C(8)-H(7) bond length is 1.10 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(8), one N(1), and one N(3) atom. The C(9)-N(1) bond length is 1.32 Å. The C(9)-N(3) bond length is 1.37 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(25), one N(2), and one N(3) atom. The C(10)-N(2) bond length is 1.32 Å. The C(10)-N(3) bond length is 1.39 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(4), and one O(5) atom. The C(11)-C(12) bond length is 1.50 Å. The C(11)-O(4) bond length is 1.30 Å. The C(11)-O(5) bond length is 1.25 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(17) atom. The C(12)-C(13) bond length is 1.40 Å. The C(12)-C(17) bond length is 1.40 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(12), one C(14), and one H(8) atom. The C(13)-C(14) bond length is 1.39 Å. The C(13)-H(8) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13), one C(15), and one H(9) atom. The C(14)-C(15) bond length is 1.40 Å. The C(14)-H(9) bond length is 1.09 Å. In the fifteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(14), one C(16), and one N(6) atom. The C(15)-C(16) bond length is 1.40 Å. The C(15)-N(6) bond length is 1.43 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(15), one C(17), and one H(10) atom. The C(16)-C(17) bond length is 1.40 Å. The C(16)-H(10) bond length is 1.09 Å. In the seventeenth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(12), one C(16), and one H(11) atom. The C(17)-H(11) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a distorted trigonal non-coplanar geometry to one C(19), one H(12), one H(13), and one H(14) atom. The C(18)-C(19) bond length is 1.48 Å. The C(18)-H(12) bond length is 1.09 Å. The C(18)-H(13) bond length is 1.10 Å. The C(18)-H(14) bond length is 1.10 Å. In the nineteenth C site, C(19) is bonded in a distorted trigonal planar geometry to one C(18), one N(4), and one N(6) atom. The C(19)-N(4) bond length is 1.32 Å. The C(19)-N(6) bond length is 1.38 Å. In the twentieth C site, C(20) is bonded in a distorted trigonal planar geometry to one C(21), one N(5), and one N(6) atom. The C(20)-C(21) bond length is 1.47 Å. The C(20)-N(5) bond length is 1.32 Å. The C(20)-N(6) bond length is 1.38 Å. In the twenty-first C site, C(21) is bonded in a trigonal planar geometry to one C(20), one C(22), and one C(26) atom. The C(21)-C(22) bond length is 1.40 Å. In the twenty-second C site, C(22) is bonded in a distorted single-bond geometry to one C(21), one C(23), and one H(15) atom. The C(22)-C(23) bond length is 1.39 Å. The C(22)-H(15) bond length is 1.09 Å. In the twenty-third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(2), and one O(3) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(2) bond length is 1.28 Å. The C(1)-O(3) bond length is 1.27 Å. In the twenty-fourth C site, C(23) is bonded in a distorted trigonal planar geometry to one C(22), one C(24), and one H(16) atom. The C(23)-C(24) bond length is 1.40 Å. The C(23)-H(16) bond length is 1.09 Å. In the twenty-fifth C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. In the twenty-sixth C site, C(24) is bonded in a distorted single-bond geometry to one C(23), one C(25), and one H(17) atom. The C(24)-H(17) bond length is 1.09 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(9), and one N(2) atom. The N(1)-N(2) bond length is 1.37 Å. In the second N site, N(2) is bonded in a distorted water-like geometry to one C(10) and one N(1) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(10), one C(5), and one C(9) atom. In the fourth N site, N(4) is bonded in a distorted water-like geometry to one C(19) and one N(5) atom. The N(4)-N(5) bond length is 1.39 Å. In the fifth N site, N(5) is bonded in a distorted water-like geometry to one C(20) and one N(4) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one C(15), one C(19), and one C(20) atom. There are eighteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) 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(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(13) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(14) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(16) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(18) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(18) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(18) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(22) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(23) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(24) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(26) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a tetrahedral geometry to one Zn(1) and three equivalent Zn(2) atoms. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(1) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one Zn(2) and one C(11) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(11) atom. Linkers: 6 Cc1nnc(-c2cccc(-c3nnc(C)n3-c3ccc(C([O])=O)cc3)c2)n1-c1ccc(C([O])=O)cc1. Metal clusters: 2 O=[C]O[Zn]O[C]O[Zn]1(O[C]O[Zn]O[C]=O)O[C]O[Zn](O[C]=O)O1. The MOF has largest included sphere 9.63 A, density 1.01 g/cm3, surface area 4701.70 m2/g, accessible volume 0.55 cm3/g