CdH12(C8O3)2 crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms. The Cd(1)-O(1) bond length is 2.43 Å. The Cd(1)-O(2) bond length is 2.42 Å. There is one shorter (2.26 Å) and one longer (2.42 Å) Cd(1)-O(3) bond length. There is one shorter (2.26 Å) and one longer (2.43 Å) Cd(1)-O(4) bond length. There are fourteen inequivalent C sites. In the first C site, C(1,2) is bonded in a trigonal planar geometry to one C(1,2); one C(11); and one C(3) atom. The C(1,2)-C(1,2) bond length is 1.48 Å. The C(1,2)-C(11) bond length is 1.41 Å. The C(1,2)-C(3) bond length is 1.40 Å. In the second C site, C(3) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(5); and one H(1,2) atom. The C(3)-C(5) bond length is 1.40 Å. The C(3)-H(1,2) bond length is 1.09 Å. In the third C site, C(4) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(6); and one H(1,2) atom. The C(4)-C(1,2) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.40 Å. The C(4)-H(1,2) bond length is 1.09 Å. In the fourth C site, C(5) is bonded in a trigonal planar geometry to one C(13), one C(3), and one C(7) atom. The C(5)-C(13) bond length is 1.49 Å. The C(5)-C(7) bond length is 1.42 Å. In the fifth C site, C(6) is bonded in a trigonal planar geometry to one C(14), one C(4), and one C(8) atom. The C(6)-C(14) bond length is 1.49 Å. The C(6)-C(8) bond length is 1.42 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(5); one C(9,10); and one O(5,6) atom. The C(7)-C(9,10) bond length is 1.40 Å. The C(7)-O(5,6) bond length is 1.36 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(6); one C(9,10); and one O(5,6) atom. The C(8)-C(9,10) bond length is 1.40 Å. The C(8)-O(5,6) bond length is 1.36 Å. In the eighth C site, C(9,10) is bonded in a distorted trigonal planar geometry to one C(11), one C(7), and one H(3) atom. The C(9,10)-C(11) bond length is 1.39 Å. The C(9,10)-H(3) bond length is 1.09 Å. In the ninth C site, C(11) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(9,10); and one H(5,6) atom. The C(11)-H(5,6) bond length is 1.09 Å. In the tenth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(9,10); and one H(5,6) atom. The C(12)-C(1,2) bond length is 1.41 Å. The C(12)-C(9,10) bond length is 1.39 Å. The C(12)-H(5,6) bond length is 1.09 Å. In the eleventh C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(1), and one O(3) atom. The C(13)-O(1) bond length is 1.27 Å. The C(13)-O(3) bond length is 1.30 Å. In the twelfth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(2), and one O(4) atom. The C(14)-O(2) bond length is 1.27 Å. The C(14)-O(4) bond length is 1.30 Å. In the thirteenth C site, C(15) is bonded in a tetrahedral geometry to one H(11,12); one H(7,8); one H(9,10); and one O(5,6) atom. The C(15)-H(11,12) bond length is 1.10 Å. The C(15)-H(7,8) bond length is 1.09 Å. The C(15)-H(9,10) bond length is 1.10 Å. The C(15)-O(5,6) bond length is 1.44 Å. In the fourteenth C site, C(16) is bonded in a tetrahedral geometry to one H(11,12); one H(7,8); one H(9,10); and one O(5,6) atom. The C(16)-H(11,12) bond length is 1.10 Å. The C(16)-H(7,8) bond length is 1.09 Å. The C(16)-H(9,10) bond length is 1.10 Å. The C(16)-O(5,6) bond length is 1.44 Å. There are seven inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(9,10) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(9,10) atom. The H(4)-C(9,10) bond length is 1.09 Å. In the fourth H site, H(5,6) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(7,8) is bonded in a single-bond geometry to one C(15) atom. In the sixth H site, H(9,10) is bonded in a single-bond geometry to one C(15) atom. In the seventh H site, H(11,12) is bonded in a single-bond geometry to one C(15) 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(13) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(14) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Cd(1) and one C(13) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Cd(1) and one C(14) atom. In the fifth O site, O(5,6) is bonded in a bent 120 degrees geometry to one C(15) and one C(7) atom. Linkers: 2 COc1ccc(-c2ccc(OC)c(C([O])=O)c2)cc1C([O])=O ,2 [CH]Oc1ccc(-c2ccc(OC)c(C([O])=O)c2)cc1C([O])=O. Metal clusters: 2 [Cd]. The MOF has largest included sphere 1.96 A, density 1.86 g/cm3, surface area 3538.89 m2/g, accessible volume 0.15 cm3/g