Cd3C37H15(NO3)6 crystallizes in the monoclinic C2/c space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. The Cd(1)-O(1) bond length is 2.25 Å. The Cd(1)-O(2) bond length is 2.73 Å. The Cd(1)-O(3) bond length is 2.41 Å. The Cd(1)-O(4) bond length is 2.59 Å. The Cd(1)-O(6) bond length is 2.26 Å. The Cd(1)-O(7) bond length is 2.59 Å. The Cd(1)-O(8) bond length is 2.30 Å. The Cd(1)-O(9) bond length is 2.29 Å. In the second Cd site, Cd(2) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. Both Cd(2)-O(2) bond lengths are 2.36 Å. Both Cd(2)-O(3) bond lengths are 2.35 Å. Both Cd(2)-O(5) bond lengths are 2.16 Å. There are nineteen inequivalent C sites. In the first C site, C(19) is bonded in a trigonal planar geometry to one H(8) and two equivalent O(9) atoms. The C(19)-H(8) bond length is 0.93 Å. Both C(19)-O(9) bond lengths are 1.25 Å. In the second 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 1.49 Å. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.23 Å. In the third 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 1.38 Å. The C(2)-C(7) bond length is 1.40 Å. In the fourth 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 1.39 Å. The C(3)-H(2) bond length is 0.93 Å. In the fifth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(9) atom. The C(4)-C(5) bond length is 1.37 Å. The C(4)-C(9) bond length is 1.46 Å. In the sixth 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 1.38 Å. The C(5)-H(3) bond length is 0.93 Å. In the seventh C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.36 Å. The C(6)-C(8) bond length is 1.53 Å. In the eighth C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(4) atom. The C(7)-H(4) bond length is 0.93 Å. In the ninth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.26 Å. The C(8)-O(4) bond length is 1.23 Å. In the tenth C site, C(9) is bonded in a 2-coordinate geometry to one C(4), one N(1), and one N(2) atom. The C(9)-N(1) bond length is 1.37 Å. The C(9)-N(2) bond length is 1.25 Å. In the eleventh C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(1), and one N(3) atom. The C(10)-C(11) bond length is 1.47 Å. The C(10)-N(1) bond length is 1.36 Å. The C(10)-N(3) bond length is 1.28 Å. In the twelfth C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(16) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(16) bond length is 1.37 Å. In the thirteenth C site, C(12) is bonded in a single-bond geometry to one C(11), one C(13), and one H(5) atom. The C(12)-C(13) bond length is 1.39 Å. The C(12)-H(5) bond length is 0.93 Å. In the fourteenth C site, C(13) is bonded in a trigonal planar geometry to one C(12), one C(14), and one C(17) atom. The C(13)-C(14) bond length is 1.38 Å. The C(13)-C(17) bond length is 1.51 Å. In the fifteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13), one C(15), and one H(6) atom. The C(14)-C(15) bond length is 1.38 Å. The C(14)-H(6) bond length is 0.93 Å. In the sixteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(18) atom. The C(15)-C(16) bond length is 1.39 Å. The C(15)-C(18) bond length is 1.49 Å. In the seventeenth C site, C(16) is bonded in a distorted single-bond geometry to one C(11), one C(15), and one H(7) atom. The C(16)-H(7) bond length is 0.93 Å. In the eighteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(5), and one O(6) atom. The C(17)-O(5) bond length is 1.24 Å. The C(17)-O(6) bond length is 1.25 Å. In the nineteenth C site, C(18) is bonded in a bent 120 degrees geometry to one C(15), one O(7), and one O(8) atom. The C(18)-O(7) bond length is 1.23 Å. The C(18)-O(8) bond length is 1.25 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a water-like geometry to one C(10) and one C(9) atom. In the second N site, N(2) is bonded in a 2-coordinate geometry to one C(9), one N(3), and one H(1) atom. The N(2)-N(3) bond length is 1.40 Å. The N(2)-H(1) bond length is 0.86 Å. In the third N site, N(3) is bonded in a distorted water-like geometry to one C(10) and one N(2) atom. There are eight 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(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(12) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(14) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(16) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(19) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Cd(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1), one Cd(2), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cd(1), one Cd(2), and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cd(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Cd(2) and one C(17) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Cd(1) and one C(17) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Cd(1) and one C(18) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Cd(1) and one C(18) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Cd(1) and one C(19) atom. Linkers: 7 [O]C(=O)c1cc([C]2N=C(c3cc(C([O])=O)cc(C([O])=O)c3)[N]N2)cc(C([O])=O)c1 ,1 [O]C(=O)c1cc(C([O])=O)cc(-c2n[nH]c(-c3cc(C([O])=O)cc(C([O])=O)c3)n2)c1. Metal clusters: 12 [Cd]. The MOF has largest included sphere 5.33 A, density 1.53 g/cm3, surface area 3496.61 m2/g, accessible volume 0.25 cm3/g