ZnH18(C17N)2(ZnC8H4O4)2 is Indium-like structured and crystallizes in the tetragonal I4/mcm space group. The structure is zero-dimensional and consists of eight ZnC8H4O4 clusters and four ZnH18(C17N)2 clusters. In each ZnC8H4O4 cluster, there are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. All Zn(1)-O(1) bond lengths are 2.01 Å. In the second Zn site, Zn(2) is bonded in a distorted square co-planar geometry to four equivalent O(2) atoms. All Zn(2)-O(2) bond lengths are 1.99 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.22 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. The C(2)-C(3) bond length is 1.37 Å. The C(2)-C(7) bond length is 1.41 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(4) atom. The C(7)-H(4) bond length is 0.93 Å. There are two 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(4) is bonded in a single-bond geometry to one C(7) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one C(1) atom. In each ZnH18(C17N)2 cluster, Zn(3) is bonded in a single-bond geometry to one Zn(3) and four equivalent N(1) atoms. The Zn(3)-Zn(3) bond length is 0.71 Å. All Zn(3)-N(1) bond lengths are 2.10 Å. There are ten inequivalent C sites. In the first C site, C(13) is bonded in a trigonal planar geometry to one C(14) and two equivalent C(9) atoms. The C(13)-C(14) bond length is 1.44 Å. Both C(13)-C(9) bond lengths are 1.36 Å. In the second C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(4)-C(5) bond length is 1.44 Å. The C(4)-H(2) bond length is 0.93 Å. In the third C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(8) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-C(8) bond length is 1.53 Å. In the fourth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the fifth C site, C(8) is bonded in a trigonal planar geometry to one C(12), one C(5), and one C(9) atom. The C(8)-C(12) bond length is 1.35 Å. The C(8)-C(9) bond length is 1.33 Å. In the sixth C site, C(9) is bonded in a distorted single-bond geometry to one C(13), one C(8), and one H(5) atom. The C(9)-H(5) bond length is 0.93 Å. In the seventh C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(14), and one N(1) atom. The C(10)-C(11) bond length is 1.46 Å. The C(10)-C(14) bond length is 1.38 Å. The C(10)-N(1) bond length is 1.34 Å. In the eighth C site, C(11) is bonded in a distorted single-bond geometry to one C(10) and one H(6) atom. The C(11)-H(6) bond length is 0.93 Å. In the ninth C site, C(14) is bonded in a trigonal planar geometry to one C(13) and two equivalent C(10) atoms. In the tenth C site, C(12) is bonded in a distorted single-bond geometry to two equivalent C(8) and one H(7) atom. The C(12)-H(7) bond length is 0.93 Å. N(1) is bonded in a 4-coordinate geometry to two equivalent Zn(3) and two equivalent C(10) atoms. There are five inequivalent H sites. In the first H site, H(7) is bonded in a single-bond geometry to one C(12) 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(5) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. Linkers: 5 [O]C(=O)c1ccc(-c2cc(/C3=C4\C=C/C(=C(\c5cc(-c6ccc(C([O])=O)cc6)cc(-c6ccc(C([O])=O)cc6)c5)C5=N/C(=C(/c6cc(-c7ccc(C([O])=O)cc7)cc(-c7ccc(C([O])=O)cc7)c6)C6=CC=C([N]6)/C(c6cc(-c7ccc(C([O])=O)cc7)cc(-c7ccc(C([O])=O)cc7)c6)=C6/C=CC3=N6)C=C5)[N]4)cc(-c3ccc(C([O])=O)cc3)c2)cc1. Metal clusters: 8 [C]1O[Zn]23O[C]O[Zn](O1)(O[C]O2)O[C]O3 ,3 [N][Zn]([N])([N])([N])[Zn] ,1 [N][Zn]([N])[Zn]([N])[N]. RCSR code: scu. The MOF has largest included sphere 11.43 A, density 0.48 g/cm3, surface area 4111.28 m2/g, accessible volume 1.74 cm3/g