Tb2ZnC30H12(NO8)2(CN)2 crystallizes in the orthorhombic Iba2 space group. The structure consists of four 1,2-dimethylhydrazine molecules inside a Tb2ZnC30H12(NO8)2 framework. In the Tb2ZnC30H12(NO8)2 framework, Tb(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Tb(1)-O(1) bond length is 2.45 Å. The Tb(1)-O(2) bond length is 2.46 Å. The Tb(1)-O(4) bond length is 2.32 Å. The Tb(1)-O(5) bond length is 2.67 Å. The Tb(1)-O(6) bond length is 2.59 Å. The Tb(1)-O(7) bond length is 2.42 Å. The Tb(1)-O(8) bond length is 2.26 Å. Zn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms. Both Zn(1)-O(1) bond lengths are 2.51 Å. Both Zn(1)-O(3) bond lengths are 1.95 Å. Both Zn(1)-O(6) bond lengths are 2.14 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(1), and one O(2) atom. The C(1)-C(13) bond length is 1.44 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) 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(3), one O(4), and one O(5) atom. The C(2)-C(3) bond length is 1.52 Å. The C(2)-O(4) bond length is 1.27 Å. The C(2)-O(5) bond length is 1.25 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(11), one C(2), and one C(6) atom. The C(3)-C(11) bond length is 1.40 Å. The C(3)-C(6) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a single-bond geometry to one C(5) and one H(1) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-H(1) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.52 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(2) atom. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(8) atom. The C(7)-O(3) bond length is 1.24 Å. The C(7)-O(8) bond length is 1.23 Å. In the eighth C site, C(9) is bonded in a distorted single-bond geometry to one C(12), one C(14), and one H(3) atom. The C(9)-C(12) bond length is 1.39 Å. The C(9)-C(14) bond length is 1.41 Å. The C(9)-H(3) bond length is 0.93 Å. In the ninth C site, C(10) is bonded in a distorted single-bond geometry to one C(12), one C(13), and one H(4) atom. The C(10)-C(12) bond length is 1.41 Å. The C(10)-C(13) bond length is 1.38 Å. The C(10)-H(4) bond length is 0.93 Å. In the tenth C site, C(11) is bonded in a distorted single-bond geometry to one C(3) and one H(5) atom. The C(11)-H(5) bond length is 0.93 Å. In the eleventh C site, C(12) is bonded in a trigonal planar geometry to one C(10), one C(16), and one C(9) atom. The C(12)-C(16) bond length is 1.53 Å. In the twelfth C site, C(13) is bonded in a trigonal planar geometry to one C(1), one C(10), and one C(15) atom. The C(13)-C(15) bond length is 1.41 Å. In the thirteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(15), one C(9), and one N(1) atom. The C(14)-C(15) bond length is 1.38 Å. The C(14)-N(1) bond length is 1.42 Å. In the fourteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(13), one C(14), and one H(6) atom. The C(15)-H(6) bond length is 0.93 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(6), and one O(7) atom. The C(16)-O(6) bond length is 1.26 Å. The C(16)-O(7) bond length is 1.22 Å. N(1) is bonded in a bent 120 degrees geometry to one C(14) and one N(1) atom. The N(1)-N(1) bond length is 1.23 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(4) 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) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(10) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(15) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Tb(1), one Zn(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one Tb(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one Tb(1) and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Tb(1) and one C(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Tb(1), one Zn(1), and one C(16) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Tb(1) and one C(16) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Tb(1) and one C(7) atom. Linkers: 9 [O]C(=O)c1cc([N][N]c2cc(C([O])=O)cc(C([O])=O)c2)cc(C([O])=O)c1. Metal clusters: 3 O=[C]O[Tb]12(O[C]O[Zn]3(O[C]O1)O[C]O[Tb]1(O[C]=O)(O[C]O3)O[C]O1)O[C]O2 ,1 O=[C]O[Tb]12(O[C]O[Zn]3(O[C]O1)O[C]O[Tb]14(O[C]O3)(O[C]O1)O[C]O4)O[C]O2. The MOF has largest included sphere 4.39 A, density 1.73 g/cm3, surface area 2947.66 m2/g, accessible volume 0.25 cm3/g