Cd3C18H14(N2O3)4 crystallizes in the triclinic P-1 space group. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 6-coordinate geometry to one N(5), one O(1), one O(12), one O(3), one O(8), and one O(9) atom. The Cd(1)-N(5) bond length is 2.32 Å. The Cd(1)-O(1) bond length is 2.30 Å. The Cd(1)-O(12) bond length is 2.61 Å. The Cd(1)-O(3) bond length is 2.52 Å. The Cd(1)-O(8) bond length is 2.33 Å. The Cd(1)-O(9) bond length is 2.19 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to one N(6), one O(10), one O(11), one O(2), one O(4), and one O(7) atom. The Cd(2)-N(6) bond length is 2.32 Å. The Cd(2)-O(10) bond length is 2.19 Å. The Cd(2)-O(11) bond length is 2.61 Å. The Cd(2)-O(2) bond length is 2.30 Å. The Cd(2)-O(4) bond length is 2.52 Å. The Cd(2)-O(7) bond length is 2.32 Å. In the third Cd site, Cd(3) is bonded in an octahedral geometry to one N(7), one N(8), one O(5), one O(6), one O(7), and one O(8) atom. The Cd(3)-N(7) bond length is 2.31 Å. The Cd(3)-N(8) bond length is 2.31 Å. The Cd(3)-O(5) bond length is 2.34 Å. The Cd(3)-O(6) bond length is 2.34 Å. The Cd(3)-O(7) bond length is 2.35 Å. The Cd(3)-O(8) bond length is 2.35 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(5) atom. The C(1)-C(15) bond length is 1.40 Å. The C(1)-C(17) bond length is 1.40 Å. The C(1)-C(5) bond length is 1.49 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(16), one C(18), and one C(6) atom. The C(2)-C(16) bond length is 1.40 Å. The C(2)-C(18) bond length is 1.40 Å. The C(2)-C(6) bond length is 1.49 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(17), one C(7), and one C(9) atom. The C(3)-C(17) bond length is 1.40 Å. The C(3)-C(7) bond length is 1.46 Å. The C(3)-C(9) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(10), one C(18), and one C(8) atom. The C(4)-C(10) bond length is 1.40 Å. The C(4)-C(18) bond length is 1.40 Å. The C(4)-C(8) bond length is 1.46 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(11), and one O(7) atom. The C(5)-O(11) bond length is 1.26 Å. The C(5)-O(7) bond length is 1.30 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(12), and one O(8) atom. The C(6)-O(12) bond length is 1.26 Å. The C(6)-O(8) bond length is 1.30 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one N(3) atom. The C(7)-N(1) bond length is 1.35 Å. The C(7)-N(3) bond length is 1.35 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(4), one N(2), and one N(4) atom. The C(8)-N(2) bond length is 1.35 Å. The C(8)-N(4) bond length is 1.35 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(11); one C(3); and one H(1,2) atom. The C(9)-C(11) bond length is 1.40 Å. The C(9)-H(1,2) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(12); one C(4); and one H(1,2) atom. The C(10)-C(12) bond length is 1.40 Å. The C(10)-H(1,2) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(9) atom. The C(11)-C(13) bond length is 1.50 Å. The C(11)-C(15) bond length is 1.40 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(16) atom. The C(12)-C(14) bond length is 1.50 Å. The C(12)-C(16) bond length is 1.40 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(1), and one O(9) atom. The C(13)-O(1) bond length is 1.27 Å. The C(13)-O(9) bond length is 1.28 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(10), and one O(2) atom. The C(14)-O(10) bond length is 1.28 Å. The C(14)-O(2) bond length is 1.27 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(1); one C(11); and one H(7,8) atom. The C(15)-H(7,8) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(12); one C(2); and one H(7,8) atom. The C(16)-H(7,8) bond length is 1.09 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(1); one C(3); and one H(9,10) atom. The C(17)-H(9,10) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(2); one C(4); and one H(9,10) atom. The C(18)-H(9,10) bond length is 1.09 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to one C(7) and one N(5) atom. The N(1)-N(5) bond length is 1.33 Å. In the second N site, N(2) is bonded in a distorted single-bond geometry to one C(8) and one N(6) atom. The N(2)-N(6) bond length is 1.33 Å. In the third N site, N(3) is bonded in a distorted water-like geometry to one C(7) and one N(7) atom. The N(3)-N(7) bond length is 1.33 Å. In the fourth N site, N(4) is bonded in a distorted water-like geometry to one C(8) and one N(8) atom. The N(4)-N(8) bond length is 1.33 Å. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Cd(1), one N(1), and one N(7) atom. The N(5)-N(7) bond length is 1.33 Å. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Cd(2), one N(2), and one N(8) atom. The N(6)-N(8) bond length is 1.33 Å. In the seventh N site, N(7) is bonded in a trigonal planar geometry to one Cd(3), one N(3), and one N(5) atom. In the eighth N site, N(8) is bonded in a trigonal planar geometry to one Cd(3), one N(4), and one N(6) atom. There are eleven inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(9) atom. In the second H site, H(3) is bonded in a single-bond geometry to one O(3) atom. The H(3)-O(3) bond length is 1.01 Å. In the third H site, H(4) is bonded in a single-bond geometry to one O(4) atom. The H(4)-O(4) bond length is 1.01 Å. In the fourth H site, H(5) is bonded in a single-bond geometry to one O(3) atom. The H(5)-O(3) bond length is 0.98 Å. In the fifth H site, H(6) is bonded in a single-bond geometry to one O(4) atom. The H(6)-O(4) bond length is 0.98 Å. In the sixth H site, H(7,8) is bonded in a single-bond geometry to one C(15) atom. In the seventh H site, H(9,10) is bonded in a single-bond geometry to one C(17) atom. In the eighth H site, H(11) is bonded in a single-bond geometry to one O(5) atom. The H(11)-O(5) bond length is 0.99 Å. In the ninth H site, H(12) is bonded in a single-bond geometry to one O(6) atom. The H(12)-O(6) bond length is 0.99 Å. In the tenth H site, H(13) is bonded in a single-bond geometry to one O(5) atom. The H(13)-O(5) bond length is 0.98 Å. In the eleventh H site, H(14) is bonded in a single-bond geometry to one O(6) atom. The H(14)-O(6) bond length is 0.98 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one C(13) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cd(2) and one C(14) atom. In the third O site, O(3) is bonded in a water-like geometry to one Cd(1), one H(3), and one H(5) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one Cd(2), one H(4), and one H(6) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Cd(3), one H(11), and one H(13) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Cd(3), one H(12), and one H(14) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Cd(2), one Cd(3), and one C(5) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Cd(1), one Cd(3), and one C(6) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Cd(1) and one C(13) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Cd(2) and one C(14) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Cd(2) and one C(5) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one Cd(1) and one C(6) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(C2=NN=N[N]2)c1. Metal clusters: 6 [Cd]. The MOF has largest included sphere 2.63 A, density 2.29 g/cm3, surface area 2863.16 m2/g, accessible volume 0.12 cm3/g