CdC8NH7O5 crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 6-coordinate geometry to one N(1), one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The Cd(1)-N(1) bond length is 2.50 Å. The Cd(1)-O(1) bond length is 2.22 Å. The Cd(1)-O(2) bond length is 2.33 Å. The Cd(1)-O(3) bond length is 2.63 Å. The Cd(1)-O(4) bond length is 2.30 Å. The Cd(1)-O(5) bond length is 2.31 Å. There are eight inequivalent C sites. In the first 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 1.50 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.28 Å. In the second 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 1.40 Å. The C(2)-C(7) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(3) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(3) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(1) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-N(1) bond length is 1.42 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(4) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-H(4) bond length is 1.09 Å. In the sixth 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 1.40 Å. The C(6)-C(8) bond length is 1.49 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(5) atom. The C(7)-H(5) bond length is 1.09 Å. In the eighth 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 1.28 Å. The C(8)-O(4) bond length is 1.27 Å. N(1) is bonded in a 3-coordinate geometry to one Cd(1), one C(4), one H(1), and one H(2) atom. The N(1)-H(1) bond length is 1.02 Å. The N(1)-H(2) bond length is 1.02 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a distorted linear geometry to one O(3) and one O(5) atom. The H(6)-O(3) bond length is 1.60 Å. The H(6)-O(5) bond length is 1.01 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(5) atom. The H(7)-O(5) bond length is 0.97 Å. There are five 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(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cd(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Cd(1), one C(8), and one H(6) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Cd(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Cd(1), one H(6), and one H(7) atom. Linkers: 2 Nc1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 1 N[Cd@]1(O[C]=O)O[C]O[Cd@](N)(O[C]=O)O[C]O1.O.O. RCSR code: kgd. The MOF has largest included sphere 2.82 A, density 2.11 g/cm3, surface area 3209.79 m2/g, accessible volume 0.08 cm3/g