CdC24H18(N3O2)2 crystallizes in the monoclinic P2_1/c space group. Cd(1) is bonded in a distorted pentagonal bipyramidal geometry to one N(1), one N(3), one N(5), one O(1), one O(2), one O(3), and one O(4) atom. The Cd(1)-N(1) bond length is 2.35 Å. The Cd(1)-N(3) bond length is 2.54 Å. The Cd(1)-N(5) bond length is 2.27 Å. The Cd(1)-O(1) bond length is 2.65 Å. The Cd(1)-O(2) bond length is 2.34 Å. The Cd(1)-O(3) bond length is 2.64 Å. The Cd(1)-O(4) bond length is 2.30 Å. There are twenty-four inequivalent C sites. In the first C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(15), one N(5), and one H(11) atom. The C(14)-C(15) bond length is 1.37 Å. The C(14)-N(5) bond length is 1.38 Å. The C(14)-H(11) bond length is 1.09 Å. In the second C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(14), one N(6), and one H(12) atom. The C(15)-N(6) bond length is 1.39 Å. The C(15)-H(12) bond length is 1.08 Å. In the third C site, C(16) is bonded in a bent 120 degrees geometry to one C(19), one O(1), and one O(2) atom. The C(16)-C(19) bond length is 1.50 Å. The C(16)-O(1) bond length is 1.26 Å. The C(16)-O(2) bond length is 1.29 Å. In the fourth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(21), one O(3), and one O(4) atom. The C(17)-C(21) bond length is 1.50 Å. The C(17)-O(3) bond length is 1.27 Å. The C(17)-O(4) bond length is 1.28 Å. In the fifth C site, C(18) is bonded in a distorted trigonal non-coplanar geometry to one C(23), one H(13), one H(14), and one H(15) atom. The C(18)-C(23) bond length is 1.50 Å. The C(18)-H(13) bond length is 1.10 Å. The C(18)-H(14) bond length is 1.10 Å. The C(18)-H(15) bond length is 1.10 Å. In the sixth C site, C(19) is bonded in a trigonal planar geometry to one C(16), one C(20), and one C(24) atom. The C(19)-C(20) bond length is 1.40 Å. The C(19)-C(24) bond length is 1.40 Å. In the seventh C site, C(20) is bonded in a distorted trigonal planar geometry to one C(19), one C(21), and one H(16) atom. The C(20)-C(21) bond length is 1.40 Å. The C(20)-H(16) bond length is 1.09 Å. In the eighth C site, C(21) is bonded in a trigonal planar geometry to one C(17), one C(20), and one C(22) atom. The C(21)-C(22) bond length is 1.40 Å. In the ninth C site, C(22) is bonded in a distorted single-bond geometry to one C(21), one C(23), and one H(17) atom. The C(22)-C(23) bond length is 1.40 Å. The C(22)-H(17) bond length is 1.09 Å. In the tenth C site, C(23) is bonded in a trigonal planar geometry to one C(18), one C(22), and one C(24) atom. The C(23)-C(24) bond length is 1.40 Å. In the eleventh C site, C(24) is bonded in a distorted single-bond geometry to one C(19), one C(23), and one H(18) atom. The C(24)-H(18) bond length is 1.09 Å. In the twelfth C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-H(1) bond length is 1.09 Å. In the thirteenth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(2) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-N(2) bond length is 1.41 Å. In the fourteenth C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(2) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(2) bond length is 1.09 Å. In the fifteenth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(4) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-N(4) bond length is 1.41 Å. In the sixteenth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(3) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-H(3) bond length is 1.09 Å. In the seventeenth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(1), one C(5), and one N(6) atom. The C(6)-N(6) bond length is 1.42 Å. In the eighteenth C site, C(7) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(4) atom. The C(7)-N(1) bond length is 1.32 Å. The C(7)-N(2) bond length is 1.37 Å. The C(7)-H(4) bond length is 1.08 Å. In the nineteenth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(9), one N(1), and one H(5) atom. The C(8)-C(9) bond length is 1.37 Å. The C(8)-N(1) bond length is 1.38 Å. The C(8)-H(5) bond length is 1.08 Å. In the twentieth C site, C(9) is bonded in a 3-coordinate geometry to one C(8), one N(2), and one H(6) atom. The C(9)-N(2) bond length is 1.40 Å. The C(9)-H(6) bond length is 1.08 Å. In the twenty-first C site, C(10) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(7) atom. The C(10)-N(3) bond length is 1.32 Å. The C(10)-N(4) bond length is 1.37 Å. The C(10)-H(7) bond length is 1.08 Å. In the twenty-second C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(12), one N(3), and one H(8) atom. The C(11)-C(12) bond length is 1.37 Å. The C(11)-N(3) bond length is 1.39 Å. The C(11)-H(8) bond length is 1.08 Å. In the twenty-third C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(4), and one H(9) atom. The C(12)-N(4) bond length is 1.39 Å. The C(12)-H(9) bond length is 1.08 Å. In the twenty-fourth C site, C(13) is bonded in a trigonal planar geometry to one N(5), one N(6), and one H(10) atom. The C(13)-N(5) bond length is 1.32 Å. The C(13)-N(6) bond length is 1.37 Å. The C(13)-H(10) bond length is 1.08 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(7), and one C(8) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(2), one C(7), and one C(9) atom. In the third N site, N(3) is bonded in a 3-coordinate geometry to one Cd(1), one C(10), and one C(11) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(4) atom. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(13), and one C(14) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(6) atom. There are eighteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(10) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(12) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(13) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(14) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(15) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(18) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(18) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(18) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(20) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(22) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(24) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cd(1) and one C(16) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Cd(1) and one C(16) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cd(1) and one C(17) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Cd(1) and one C(17) atom. Linkers: 4 c1cn(-c2cc(-n3ccnc3)cc(-n3ccnc3)c2)cn1 ,2 Cc1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 4 O=[C]O[Cd]O[C]=O. The MOF has largest included sphere 3.13 A, density 1.52 g/cm3, surface area 4687.76 m2/g, accessible volume 0.17 cm3/g