ZnC16NH4O4C18NH8O4 is High Pressure Cadmuum Telluride structured and crystallizes in the tetragonal P4/mmm space group. The structure is zero-dimensional and consists of one C18NH8O4 cluster and one ZnC16NH4O4 cluster. In the C18NH8O4 cluster, there are six inequivalent C sites. In the first C site, C(2) is bonded in a 5-coordinate geometry to four equivalent C(5) and one N(2) atom. All C(2)-C(5) bond lengths are 1.33 Å. The C(2)-N(2) bond length is 1.48 Å. In the second C site, C(3) is bonded in a 5-coordinate geometry to one C(3) and four equivalent C(7) atoms. The C(3)-C(3) bond length is 1.43 Å. All C(3)-C(7) bond lengths are 1.31 Å. In the third C site, C(5) is bonded in a distorted single-bond geometry to one C(2) and one H(2) atom. The C(5)-H(2) bond length is 0.95 Å. In the fourth C site, C(6) is bonded in a bent 120 degrees geometry to one C(7), one N(2), and one O(2) atom. The C(6)-C(7) bond length is 1.51 Å. The C(6)-N(2) bond length is 1.25 Å. The C(6)-O(2) bond length is 1.21 Å. In the fifth C site, C(7) is bonded in a 5-coordinate geometry to one C(3), one C(6), one C(8), and two equivalent C(7) atoms. The C(7)-C(8) bond length is 1.37 Å. Both C(7)-C(7) bond lengths are 1.59 Å. In the sixth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(8), and one H(3) atom. The C(8)-C(8) bond length is 1.44 Å. The C(8)-H(3) bond length is 0.95 Å. N(2) is bonded in a 5-coordinate geometry to one C(2) and four equivalent C(6) atoms. There are two inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(8) atom. O(2) is bonded in a single-bond geometry to one C(6) atom. In the ZnC16NH4O4 cluster, Zn(1) is bonded in a distorted square pyramidal geometry to one N(1) and four equivalent O(1) atoms. The Zn(1)-N(1) bond length is 2.02 Å. All Zn(1)-O(1) bond lengths are 2.03 Å. There are four inequivalent C sites. In the first C site, C(4) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(4)-N(1) bond length is 1.32 Å. The C(4)-H(1) bond length is 0.95 Å. In the second C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10) and two equivalent O(1) atoms. The C(9)-C(10) bond length is 1.50 Å. Both C(9)-O(1) bond lengths are 1.24 Å. In the third C site, C(10) is bonded in a 5-coordinate geometry to one C(9) and four equivalent C(1) atoms. All C(10)-C(1) bond lengths are 1.41 Å. In the fourth C site, C(1) is bonded in a single-bond geometry to one C(10) atom. N(1) is bonded in a 5-coordinate geometry to one Zn(1) and four equivalent C(4) atoms. H(1) is bonded in a single-bond geometry to one C(4) atom. O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(9) atom. Linkers: 2 C123C45C67C1(C18C29C42C61C928)C357.[O][C]=O.[O][C]=O ,1 C1=C[N]23C=C[C@@]41[C@@H]1[C@H]4[C@H]2[C@H]31.C1=C[N]23[CH][C@H]4[C@@]51[CH][C@@H]3[C@@H]2[C@@H]45.O=C1/C/2=C/C=C\3/C(=O)[N]45C(=O)/C/6=C/C=C/7\[C@@]82[C@@]29[C@]%10([N]1(C7=O)[C@]%10([C@@]82C=C[C@@]12[C@@]36[C@]1(C=C9)[C@]4([C@]52[O])[O])[O])[O]. Metal clusters: 1 [C]1O[Zn]23O[C]O[Zn](O1)(O[C]O2)O[C]O3. RCSR code: sql. The MOF has largest included sphere 10.24 A, density 0.80 g/cm3, surface area 3413.47 m2/g, accessible volume 0.83 cm3/g