Zn7C18H26(N4O)8 crystallizes in the monoclinic C2/c space group. There are seven inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a tetrahedral geometry to one N(13), one N(31), one N(5), and one O(4) atom. The Zn(1)-N(13) bond length is 2.02 Å. The Zn(1)-N(31) bond length is 1.99 Å. The Zn(1)-N(5) bond length is 2.01 Å. The Zn(1)-O(4) bond length is 1.94 Å. In the second Zn site, Zn(2) is bonded to one N(18), one N(22), one N(3), and one O(1) atom to form corner-sharing ZnN3O tetrahedra. The Zn(2)-N(18) bond length is 2.01 Å. The Zn(2)-N(22) bond length is 1.99 Å. The Zn(2)-N(3) bond length is 2.02 Å. The Zn(2)-O(1) bond length is 1.90 Å. In the third Zn site, Zn(3) is bonded in an octahedral geometry to one N(10), one N(15), one N(19), one N(2), one N(23), and one N(7) atom. The Zn(3)-N(10) bond length is 2.20 Å. The Zn(3)-N(15) bond length is 2.18 Å. The Zn(3)-N(19) bond length is 2.15 Å. The Zn(3)-N(2) bond length is 2.18 Å. The Zn(3)-N(23) bond length is 2.25 Å. The Zn(3)-N(7) bond length is 2.20 Å. In the fourth Zn site, Zn(4) is bonded in a tetrahedral geometry to one N(11), one N(14), one N(6), and one O(6) atom. The Zn(4)-N(11) bond length is 2.01 Å. The Zn(4)-N(14) bond length is 2.00 Å. The Zn(4)-N(6) bond length is 1.98 Å. The Zn(4)-O(6) bond length is 1.91 Å. In the fifth Zn site, Zn(5) is bonded to one N(17), one N(29), one O(2), and one O(7) atom to form corner-sharing ZnN2O2 tetrahedra. The Zn(5)-N(17) bond length is 1.99 Å. The Zn(5)-N(29) bond length is 1.97 Å. The Zn(5)-O(2) bond length is 1.94 Å. The Zn(5)-O(7) bond length is 1.93 Å. In the sixth Zn site, Zn(6) is bonded in a tetrahedral geometry to one N(1), one N(21), one N(26), and one O(5) atom. The Zn(6)-N(1) bond length is 2.04 Å. The Zn(6)-N(21) bond length is 2.01 Å. The Zn(6)-N(26) bond length is 2.00 Å. The Zn(6)-O(5) bond length is 1.95 Å. In the seventh Zn site, Zn(7) is bonded to one N(25), one N(9), one O(1), and one O(2) atom to form ZnN2O2 tetrahedra that share  a cornercorner with one Zn(5)N2O2 tetrahedra and  a cornercorner with one Zn(2)N3O tetrahedra. The Zn(7)-N(25) bond length is 1.97 Å. The Zn(7)-N(9) bond length is 2.01 Å. The Zn(7)-O(1) bond length is 1.94 Å. The Zn(7)-O(2) bond length is 1.94 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(3), one O(4), and one O(5) atom. The C(1)-O(3) bond length is 1.25 Å. The C(1)-O(4) bond length is 1.30 Å. The C(1)-O(5) bond length is 1.29 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(6), one O(7), and one O(8) atom. The C(2)-O(6) bond length is 1.28 Å. The C(2)-O(7) bond length is 1.30 Å. The C(2)-O(8) bond length is 1.27 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(4) atom. The C(3)-N(1) bond length is 1.36 Å. The C(3)-N(2) bond length is 1.33 Å. The C(3)-N(4) bond length is 1.34 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(5) atom. The C(4)-N(1) bond length is 1.36 Å. The C(4)-N(3) bond length is 1.31 Å. The C(4)-H(5) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one N(5), one N(6), and one N(8) atom. The C(5)-N(5) bond length is 1.35 Å. The C(5)-N(6) bond length is 1.33 Å. The C(5)-N(8) bond length is 1.36 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one N(5), one N(7), and one H(8) atom. The C(6)-N(5) bond length is 1.35 Å. The C(6)-N(7) bond length is 1.31 Å. The C(6)-H(8) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one N(10), one N(12), and one N(9) atom. The C(7)-N(10) bond length is 1.33 Å. The C(7)-N(12) bond length is 1.34 Å. The C(7)-N(9) bond length is 1.36 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one N(11), one N(9), and one H(11) atom. The C(8)-N(11) bond length is 1.30 Å. The C(8)-N(9) bond length is 1.34 Å. The C(8)-H(11) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one N(13), one N(14), and one N(16) atom. The C(9)-N(13) bond length is 1.34 Å. The C(9)-N(14) bond length is 1.32 Å. The C(9)-N(16) bond length is 1.37 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(13), one N(15), and one H(14) atom. The C(10)-N(13) bond length is 1.36 Å. The C(10)-N(15) bond length is 1.31 Å. The C(10)-H(14) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one N(17), one N(18), and one N(20) atom. The C(11)-N(17) bond length is 1.34 Å. The C(11)-N(18) bond length is 1.33 Å. The C(11)-N(20) bond length is 1.36 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one N(17), one N(19), and one H(17) atom. The C(12)-N(17) bond length is 1.35 Å. The C(12)-N(19) bond length is 1.31 Å. The C(12)-H(17) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one N(21), one N(22), and one N(24) atom. The C(13)-N(21) bond length is 1.35 Å. The C(13)-N(22) bond length is 1.34 Å. The C(13)-N(24) bond length is 1.35 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one N(21), one N(23), and one H(20) atom. The C(14)-N(21) bond length is 1.37 Å. The C(14)-N(23) bond length is 1.31 Å. The C(14)-H(20) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one N(25), one N(26), and one N(28) atom. The C(15)-N(25) bond length is 1.30 Å. The C(15)-N(26) bond length is 1.34 Å. The C(15)-N(28) bond length is 1.39 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one N(25), one N(27), and one H(23) atom. The C(16)-N(25) bond length is 1.36 Å. The C(16)-N(27) bond length is 1.32 Å. The C(16)-H(23) bond length is 0.93 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one N(29), one N(30), and one N(32) atom. The C(17)-N(29) bond length is 1.36 Å. The C(17)-N(30) bond length is 1.32 Å. The C(17)-N(32) bond length is 1.40 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one N(29), one N(31), and one H(26) atom. The C(18)-N(29) bond length is 1.32 Å. The C(18)-N(31) bond length is 1.29 Å. The C(18)-H(26) bond length is 0.93 Å. There are thirty-two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Zn(6), one C(3), and one C(4) atom. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Zn(3), one C(3), and one N(3) atom. The N(2)-N(3) bond length is 1.41 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(4), and one N(2) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(3), one H(3), and one H(4) atom. The N(4)-H(3) bond length is 0.86 Å. The N(4)-H(4) bond length is 0.86 Å. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Zn(1), one C(5), and one C(6) atom. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Zn(4), one C(5), and one N(7) atom. The N(6)-N(7) bond length is 1.38 Å. In the seventh N site, N(7) is bonded in a 3-coordinate geometry to one Zn(3), one C(6), and one N(6) atom. In the eighth N site, N(8) is bonded in a distorted trigonal planar geometry to one C(5), one H(6), and one H(7) atom. The N(8)-H(6) bond length is 0.86 Å. The N(8)-H(7) bond length is 0.86 Å. In the ninth N site, N(9) is bonded in a trigonal planar geometry to one Zn(7), one C(7), and one C(8) atom. In the tenth N site, N(10) is bonded in a 3-coordinate geometry to one Zn(3), one C(7), and one N(11) atom. The N(10)-N(11) bond length is 1.40 Å. In the eleventh N site, N(11) is bonded in a distorted trigonal planar geometry to one Zn(4), one C(8), and one N(10) atom. In the twelfth N site, N(12) is bonded in a trigonal planar geometry to one C(7), one H(10), and one H(9) atom. The N(12)-H(10) bond length is 0.86 Å. The N(12)-H(9) bond length is 0.86 Å. In the thirteenth N site, N(13) is bonded in a trigonal planar geometry to one Zn(1), one C(10), and one C(9) atom. In the fourteenth N site, N(14) is bonded in a distorted trigonal planar geometry to one Zn(4), one C(9), and one N(15) atom. The N(14)-N(15) bond length is 1.40 Å. In the fifteenth N site, N(15) is bonded in a 3-coordinate geometry to one Zn(3), one C(10), and one N(14) atom. In the sixteenth N site, N(16) is bonded in a trigonal planar geometry to one C(9), one H(12), and one H(13) atom. The N(16)-H(12) bond length is 0.86 Å. The N(16)-H(13) bond length is 0.86 Å. In the seventeenth N site, N(17) is bonded in a trigonal planar geometry to one Zn(5), one C(11), and one C(12) atom. In the eighteenth N site, N(18) is bonded in a 3-coordinate geometry to one Zn(2), one C(11), and one N(19) atom. The N(18)-N(19) bond length is 1.39 Å. In the nineteenth N site, N(19) is bonded in a 3-coordinate geometry to one Zn(3), one C(12), and one N(18) atom. In the twentieth N site, N(20) is bonded in a trigonal planar geometry to one C(11), one H(15), and one H(16) atom. The N(20)-H(15) bond length is 0.86 Å. The N(20)-H(16) bond length is 0.86 Å. In the twenty-first N site, N(21) is bonded in a trigonal planar geometry to one Zn(6), one C(13), and one C(14) atom. In the twenty-second N site, N(22) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(13), and one N(23) atom. The N(22)-N(23) bond length is 1.39 Å. In the twenty-third N site, N(23) is bonded in a 3-coordinate geometry to one Zn(3), one C(14), and one N(22) atom. In the twenty-fourth N site, N(24) is bonded in a trigonal planar geometry to one C(13), one H(18), and one H(19) atom. The N(24)-H(18) bond length is 0.86 Å. The N(24)-H(19) bond length is 0.86 Å. In the twenty-fifth N site, N(25) is bonded in a trigonal planar geometry to one Zn(7), one C(15), and one C(16) atom. In the twenty-sixth N site, N(26) is bonded in a 3-coordinate geometry to one Zn(6), one C(15), and one N(27) atom. The N(26)-N(27) bond length is 1.36 Å. In the twenty-seventh N site, N(27) is bonded in a distorted single-bond geometry to one C(16) and one N(26) atom. In the twenty-eighth N site, N(28) is bonded in a distorted trigonal planar geometry to one C(15), one H(21), and one H(22) atom. The N(28)-H(21) bond length is 0.86 Å. The N(28)-H(22) bond length is 0.86 Å. In the twenty-ninth N site, N(29) is bonded in a trigonal planar geometry to one Zn(5), one C(17), and one C(18) atom. In the thirtieth N site, N(30) is bonded in a water-like geometry to one C(17) and one N(31) atom. The N(30)-N(31) bond length is 1.40 Å. In the thirty-first N site, N(31) is bonded in a 3-coordinate geometry to one Zn(1), one C(18), and one N(30) atom. In the thirty-second N site, N(32) is bonded in a distorted trigonal planar geometry to one C(17), one H(24), and one H(25) atom. The N(32)-H(24) bond length is 0.86 Å. The N(32)-H(25) bond length is 0.86 Å. There are twenty-six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.93 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.93 Å. In the third H site, H(3) is bonded in a single-bond geometry to one N(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one N(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(6) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one N(12) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one N(12) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(8) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one N(16) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one N(16) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(10) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one N(20) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one N(20) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(12) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one N(24) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one N(24) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(14) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one N(28) atom. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one N(28) atom. In the twenty-third H site, H(23) is bonded in a single-bond geometry to one C(16) atom. In the twenty-fourth H site, H(24) is bonded in a single-bond geometry to one N(32) atom. In the twenty-fifth H site, H(25) is bonded in a single-bond geometry to one N(32) atom. In the twenty-sixth H site, H(26) 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 distorted trigonal planar geometry to one Zn(2), one Zn(7), and one H(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Zn(5), one Zn(7), and one H(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(6) and one C(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(4) and one C(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Zn(5) and one C(2) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(2) atom. Linkers: 28 NC1=[N]=CN=N1 ,2 NC1=N[N]C=N1 ,1 NC1=NC=N[N]1 ,1 NC1=NN=C[N]1. Metal clusters: 4 O=C(O[Zn])O[Zn] ,20 [Zn]. The MOF has largest included sphere 5.25 A, density 1.71 g/cm3, surface area 3524.87 m2/g, accessible volume 0.23 cm3/g