CdH12(C8O3)2 crystallizes in the monoclinic C2/c space group. Cd(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Both Cd(1)-O(2) bond lengths are 2.66 Å. Both Cd(1)-O(3) bond lengths are 2.69 Å. There are two shorter (2.31 Å) and two longer (2.32 Å) Cd(1)-O(1) bond lengths. There are eight inequivalent C sites. In the first C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(1) atom. The C(4)-C(3) bond length is 1.40 Å. The C(4)-C(5) bond length is 1.41 Å. The C(4)-H(1) bond length is 1.09 Å. In the second C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(6) atom. The C(5)-C(5) bond length is 1.48 Å. The C(5)-C(6) bond length is 1.41 Å. In the third C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(6)-H(2) bond length is 1.09 Å. In the fourth C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(7)-C(2) bond length is 1.40 Å. The C(7)-H(3) bond length is 1.09 Å. In the fifth C site, C(8) is bonded in a tetrahedral geometry to one H(4), one H(5), one H(6), and one O(3) atom. The C(8)-H(4) bond length is 1.10 Å. The C(8)-H(5) bond length is 1.10 Å. The C(8)-H(6) bond length is 1.09 Å. The C(8)-O(3) bond length is 1.44 Å. In the sixth 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 1.31 Å. The C(1)-O(2) bond length is 1.26 Å. In the seventh 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 1.41 Å. In the eighth C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one O(3) atom. The C(3)-O(3) bond length is 1.37 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(8) 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(8) atom. There are three inequivalent O sites. In the first O site, O(2) is bonded in a single-bond geometry to one Cd(1) and one C(1) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1), one C(3), and one C(8) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Cd(1) and one C(1) atom. Linkers: 2 COc1cc(-c2ccc(C([O])=O)c(OC)c2)ccc1C([O])=O ,2 COc1[c][c]cc(-c2ccc(C([O])=O)c(OC)c2)c1. Metal clusters: 2 [Cd]. The MOF has largest included sphere 2.15 A, density 1.95 g/cm3, surface area 3530.89 m2/g, accessible volume 0.09 cm3/g