CdC18N3H19O5 is Indium-like structured and crystallizes in the orthorhombic Ccce space group. The structure is zero-dimensional and consists of sixteen CdC18N3H19O5 clusters. Cd(1) is bonded in a pentagonal bipyramidal geometry to one N(1), one N(3), one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The Cd(1)-N(1) bond length is 2.33 Å. The Cd(1)-N(3) bond length is 2.34 Å. The Cd(1)-O(1) bond length is 2.43 Å. The Cd(1)-O(2) bond length is 2.35 Å. The Cd(1)-O(3) bond length is 2.37 Å. The Cd(1)-O(4) bond length is 2.42 Å. The Cd(1)-O(5) bond length is 2.40 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(1)-C(3) bond length is 1.37 Å. The C(1)-H(2) bond length is 0.95 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(3) atom. The C(2)-N(1) bond length is 1.33 Å. The C(2)-H(3) bond length is 0.95 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(11), and one C(9) atom. The C(3)-C(11) bond length is 1.50 Å. The C(3)-C(9) bond length is 1.39 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(4)-O(1) bond length is 1.25 Å. The C(4)-O(2) bond length is 1.25 Å. In the fifth C site, C(5) is bonded in a water-like geometry to one C(6) and two equivalent H(4,5) atoms. The C(5)-C(6) bond length is 1.53 Å. Both C(5)-H(4,5) bond lengths are 0.99 Å. In the sixth C site, C(6) is bonded in a tetrahedral geometry to one C(17), one C(18), one C(5), and one C(7) atom. The C(6)-C(17) bond length is 1.54 Å. The C(6)-C(18) bond length is 1.53 Å. The C(6)-C(7) bond length is 1.53 Å. In the seventh C site, C(7) is bonded in a trigonal non-coplanar geometry to one C(6); one H(8,17,18,19); and two equivalent H(6,7) atoms. The C(7)-H(8,17,18,19) bond length is 0.98 Å. Both C(7)-H(6,7) bond lengths are 0.98 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(9) atom. The C(8)-N(1) bond length is 1.32 Å. The C(8)-H(9) bond length is 0.95 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(3) and one H(10) atom. The C(9)-H(10) bond length is 0.95 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(12), one C(13), and one C(14) atom. The C(10)-C(12) bond length is 1.50 Å. The C(10)-C(13) bond length is 1.37 Å. The C(10)-C(14) bond length is 1.38 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal non-coplanar geometry to one C(3), one N(2), one H(11), and one H(12) atom. The C(11)-N(2) bond length is 1.44 Å. The C(11)-H(11) bond length is 0.99 Å. The C(11)-H(12) bond length is 0.99 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(10), one N(2), and one O(4) atom. The C(12)-N(2) bond length is 1.33 Å. The C(12)-O(4) bond length is 1.23 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(10) and one H(13) atom. The C(13)-H(13) bond length is 0.95 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(10) and one H(14) atom. The C(14)-H(14) bond length is 0.95 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(15) atom. The C(15)-N(3) bond length is 1.33 Å. The C(15)-H(15) bond length is 0.95 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(16) atom. The C(16)-N(3) bond length is 1.33 Å. The C(16)-H(16) bond length is 0.95 Å. In the seventeenth C site, C(17) is bonded in a trigonal non-coplanar geometry to one C(6) and three equivalent H(8,17,18,19) atoms. All C(17)-H(8,17,18,19) bond lengths are 0.98 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(3), and one O(5) atom. The C(18)-O(3) bond length is 1.24 Å. The C(18)-O(5) bond length is 1.25 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cd(1), one C(2), and one C(8) atom. In the second N site, N(3) is bonded in a trigonal planar geometry to one Cd(1), one C(15), and one C(16) atom. In the third N site, N(2) is bonded in a trigonal planar geometry to one C(11), one C(12), and one H(1) atom. The N(2)-H(1) bond length is 0.88 Å. There are fourteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(9) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(10) is bonded in a single-bond geometry to one C(9) atom. In the sixth H site, H(11) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(12) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(13) is bonded in a single-bond geometry to one C(13) atom. In the ninth H site, H(14) is bonded in a single-bond geometry to one C(14) atom. In the tenth H site, H(15) is bonded in a single-bond geometry to one C(15) atom. In the eleventh H site, H(16) is bonded in a single-bond geometry to one C(16) atom. In the twelfth H site, H(8,17,18,19) is bonded in a single-bond geometry to one C(7) atom. In the thirteenth H site, H(4,5) is bonded in a single-bond geometry to one C(5) atom. In the fourteenth H site, H(6,7) is bonded in a single-bond geometry to one C(7) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cd(1) and one C(4) atom. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one C(12) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(4) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Cd(1) and one C(18) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cd(1) and one C(18) atom. Linkers: 16 O=C(NCc1ccncc1)c1ccncc1 ,16 CC(C)(CC([O])=O)C([O])=O. Metal clusters: 16 [O][Cd]12(O[C]O1)O[C]O2. The MOF has largest included sphere 4.32 A, density 1.57 g/cm3, surface area 4311.72 m2/g, accessible volume 0.15 cm3/g