CdC7NH9O7 crystallizes in the triclinic P1 space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one N(1); one O(1); one O(11); one O(13,14); one O(2); one O(4); and one O(9) atom to form distorted corner-sharing CdNO6 pentagonal bipyramids. The Cd(1)-N(1) bond length is 2.42 Å. The Cd(1)-O(1) bond length is 2.35 Å. The Cd(1)-O(11) bond length is 2.28 Å. The Cd(1)-O(13,14) bond length is 2.37 Å. The Cd(1)-O(2) bond length is 2.52 Å. The Cd(1)-O(4) bond length is 2.57 Å. The Cd(1)-O(9) bond length is 2.30 Å. In the second Cd site, Cd(2) is bonded to one N(2); one O(1); one O(10); one O(12); one O(13,14); one O(2); and one O(3) atom to form distorted corner-sharing CdNO6 pentagonal bipyramids. The Cd(2)-N(2) bond length is 2.42 Å. The Cd(2)-O(1) bond length is 2.52 Å. The Cd(2)-O(10) bond length is 2.30 Å. The Cd(2)-O(12) bond length is 2.28 Å. The Cd(2)-O(13,14) bond length is 2.37 Å. The Cd(2)-O(2) bond length is 2.35 Å. The Cd(2)-O(3) bond length is 2.57 Å. There are thirteen inequivalent C sites. In the first C site, C(1,2) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(1,2)-C(3) bond length is 1.51 Å. The C(1,2)-O(1) bond length is 1.27 Å. The C(1,2)-O(3) bond length is 1.27 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 N(1) atom. The C(3)-C(5) bond length is 1.39 Å. The C(3)-N(1) bond length is 1.35 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 N(2) atom. The C(4)-C(1,2) bond length is 1.51 Å. The C(4)-C(6) bond length is 1.39 Å. The C(4)-N(2) bond length is 1.35 Å. In the fourth C site, C(5) is bonded in a distorted single-bond geometry to one C(3), one C(7), and one H(1) atom. The C(5)-C(7) bond length is 1.40 Å. The C(5)-H(1) bond length is 1.09 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(4), one C(8), and one H(2) atom. The C(6)-C(8) bond length is 1.40 Å. The C(6)-H(2) bond length is 1.09 Å. In the sixth C site, C(7) is bonded in a trigonal planar geometry to one C(13), one C(5), and one C(9) atom. The C(7)-C(13) bond length is 1.51 Å. The C(7)-C(9) bond length is 1.40 Å. In the seventh C site, C(8) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(6) atom. The C(8)-C(10) bond length is 1.40 Å. The C(8)-C(14) bond length is 1.51 Å. In the eighth C site, C(9) is bonded in a distorted single-bond geometry to one C(11); one C(7); and one H(3,4) atom. The C(9)-C(11) bond length is 1.40 Å. The C(9)-H(3,4) bond length is 1.09 Å. In the ninth C site, C(10) is bonded in a distorted single-bond geometry to one C(12); one C(8); and one H(3,4) atom. The C(10)-C(12) bond length is 1.40 Å. The C(10)-H(3,4) bond length is 1.09 Å. In the tenth C site, C(11) is bonded in a distorted trigonal planar geometry to one C(9), one N(1), and one H(5) atom. The C(11)-N(1) bond length is 1.34 Å. The C(11)-H(5) bond length is 1.09 Å. In the eleventh C site, C(12) is bonded in a distorted trigonal planar geometry to one C(10), one N(2), and one H(6) atom. The C(12)-N(2) bond length is 1.34 Å. The C(12)-H(6) bond length is 1.09 Å. In the twelfth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(5), and one O(7) atom. The C(13)-O(5) bond length is 1.29 Å. The C(13)-O(7) bond length is 1.25 Å. In the thirteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(6), and one O(8) atom. The C(14)-O(6) bond length is 1.29 Å. The C(14)-O(8) bond length is 1.25 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(11), and one C(3) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cd(2), one C(12), and one C(4) atom. There are fifteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) 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(3,4) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one O(9) atom. The H(7)-O(9) bond length is 1.00 Å. In the seventh H site, H(8) is bonded in a single-bond geometry to one O(10) atom. The H(8)-O(10) bond length is 1.00 Å. In the eighth H site, H(9) is bonded in a single-bond geometry to one O(9) atom. The H(9)-O(9) bond length is 1.00 Å. In the ninth H site, H(10) is bonded in a single-bond geometry to one O(10) atom. The H(10)-O(10) bond length is 1.00 Å. In the tenth H site, H(11) is bonded in a single-bond geometry to one O(11) atom. The H(11)-O(11) bond length is 0.99 Å. In the eleventh H site, H(12) is bonded in a single-bond geometry to one O(12) atom. The H(12)-O(12) bond length is 0.99 Å. In the twelfth H site, H(13) is bonded in a distorted linear geometry to one O(11) and one O(8) atom. The H(13)-O(11) bond length is 1.01 Å. The H(13)-O(8) bond length is 1.62 Å. In the thirteenth H site, H(14) is bonded in a distorted linear geometry to one O(12) and one O(7) atom. The H(14)-O(12) bond length is 1.01 Å. The H(14)-O(7) bond length is 1.62 Å. In the fourteenth H site, H(15,16) is bonded in a single-bond geometry to one O(13,14) atom. The H(15,16)-O(13,14) bond length is 0.98 Å. In the fifteenth H site, H(17,18) is bonded in a distorted linear geometry to one O(13,14) and one O(3) atom. The H(17,18)-O(13,14) bond length is 1.01 Å. The H(17,18)-O(3) bond length is 1.61 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cd(1); one Cd(2); and one C(1,2) 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(1,2) atom. The O(2)-C(1,2) bond length is 1.27 Å. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cd(2); one C(1,2); and one H(17,18) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cd(1); one C(1,2); and one H(17,18) atom. The O(4)-C(1,2) bond length is 1.27 Å. The O(4)-H(17,18) bond length is 1.61 Å. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one C(13) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one C(14) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one C(13) and one H(14) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one C(14) and one H(13) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Cd(1), one H(7), and one H(9) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Cd(2), one H(10), and one H(8) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Cd(1), one H(11), and one H(13) atom. In the twelfth O site, O(12) is bonded in a distorted water-like geometry to one Cd(2), one H(12), and one H(14) atom. In the thirteenth O site, O(13,14) is bonded in a water-like geometry to one Cd(1); one H(15,16); and one H(17,18) atom. Linkers: 2 [O]C(=O)c1ccnc(C([O])=O)c1. Metal clusters: 2 [Cd]. The MOF has largest included sphere 2.40 A, density 2.14 g/cm3, surface area 3317.25 m2/g, accessible volume 0.12 cm3/g