CdC8H6O5 crystallizes in the triclinic P-1 space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(4), one O(5), one O(8), and one O(9) atom. The Cd(1)-O(1) bond length is 2.40 Å. The Cd(1)-O(4) bond length is 2.39 Å. The Cd(1)-O(5) bond length is 2.25 Å. The Cd(1)-O(8) bond length is 2.24 Å. The Cd(1)-O(9) bond length is 2.24 Å. In the second Cd site, Cd(2) is bonded in a distorted trigonal bipyramidal geometry to one O(10), one O(2), one O(3), one O(6), and one O(7) atom. The Cd(2)-O(10) bond length is 2.24 Å. The Cd(2)-O(2) bond length is 2.39 Å. The Cd(2)-O(3) bond length is 2.40 Å. The Cd(2)-O(6) bond length is 2.24 Å. The Cd(2)-O(7) bond length is 2.24 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(1), and one O(5) atom. The C(1)-C(5) bond length is 1.49 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(5) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(2), and one O(6) atom. The C(2)-C(6) bond length is 1.49 Å. The C(2)-O(2) bond length is 1.29 Å. The C(2)-O(6) bond length is 1.27 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(3), and one O(7) atom. The C(3)-C(7) bond length is 1.49 Å. The C(3)-O(3) bond length is 1.29 Å. The C(3)-O(7) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(4), and one O(8) atom. The C(4)-C(8) bond length is 1.49 Å. The C(4)-O(4) bond length is 1.29 Å. The C(4)-O(8) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(15), and one C(9) atom. The C(5)-C(15) bond length is 1.40 Å. The C(5)-C(9) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(10), one C(15), and one C(2) atom. The C(6)-C(10) bond length is 1.40 Å. The C(6)-C(15) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(11), one C(16), and one C(3) atom. The C(7)-C(11) bond length is 1.40 Å. The C(7)-C(16) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(12), one C(16), and one C(4) atom. The C(8)-C(12) bond length is 1.40 Å. The C(8)-C(16) bond length is 1.40 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(13); one C(5); and one H(5,7) atom. The C(9)-C(13) bond length is 1.39 Å. The C(9)-H(5,7) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(13); one C(6); and one H(6,8) atom. The C(10)-C(13) bond length is 1.39 Å. The C(10)-H(6,8) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(14); one C(7); and one H(5,7) atom. The C(11)-C(14) bond length is 1.39 Å. The C(11)-H(5,7) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(14); one C(8); and one H(6,8) atom. The C(12)-C(14) bond length is 1.39 Å. The C(12)-H(6,8) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(10), one C(9), and one H(9) atom. The C(13)-H(9) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(11), one C(12), and one H(10) atom. The C(14)-H(10) bond length is 1.09 Å. In the fifteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(5), one C(6), and one H(11) atom. The C(15)-H(11) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(7), one C(8), and one H(12) atom. The C(16)-H(12) bond length is 1.09 Å. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(4) and one O(9) atom. The H(1)-O(4) bond length is 1.66 Å. The H(1)-O(9) bond length is 1.00 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(10) and one O(3) atom. The H(2)-O(10) bond length is 1.00 Å. The H(2)-O(3) bond length is 1.66 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(10) and one O(2) atom. The H(3)-O(10) bond length is 1.00 Å. The H(3)-O(2) bond length is 1.66 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(1) and one O(9) atom. The H(4)-O(1) bond length is 1.67 Å. The H(4)-O(9) bond length is 1.00 Å. In the fifth H site, H(5,7) is bonded in a single-bond geometry to one C(9) atom. In the sixth H site, H(6,8) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(9) is bonded in a single-bond geometry to one C(13) atom. In the eighth H site, H(10) is bonded in a single-bond geometry to one C(14) atom. In the ninth H site, H(11) is bonded in a single-bond geometry to one C(15) atom. In the tenth H site, H(12) is bonded in a single-bond geometry to one C(16) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cd(1), one C(1), and one H(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cd(2), one C(2), and one H(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cd(2), one C(3), and one H(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cd(1), one C(4), and one H(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Cd(1) and one C(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Cd(2) and one C(2) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Cd(2) and one C(3) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Cd(1) and one C(4) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Cd(1), one H(1), and one H(4) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Cd(2), one H(2), and one H(3) atom. Linkers: 4 [O]C(=O)c1cccc(C([O])=O)c1. Metal clusters: 4 [Cd]. The MOF has largest included sphere 1.71 A, density 2.28 g/cm3, surface area 3105.91 m2/g, accessible volume 0.11 cm3/g