CdC19H12O4 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 6-coordinate geometry to one O(1), one O(2), one O(3), one O(8), and two equivalent O(7) atoms. The Cd(1)-O(1) bond length is 2.64 Å. The Cd(1)-O(2) bond length is 2.20 Å. The Cd(1)-O(3) bond length is 2.40 Å. The Cd(1)-O(8) bond length is 2.50 Å. There is one shorter (2.30 Å) and one longer (2.46 Å) Cd(1)-O(7) bond length. In the second Cd site, Cd(2) is bonded in a distorted octahedral geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. The Cd(2)-O(1) bond length is 2.34 Å. The Cd(2)-O(3) bond length is 2.27 Å. The Cd(2)-O(4) bond length is 2.22 Å. The Cd(2)-O(5) bond length is 2.27 Å. The Cd(2)-O(6) bond length is 2.38 Å. The Cd(2)-O(8) bond length is 2.43 Å. There are thirty-eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(13), one C(2), and one H(1) atom. The C(1)-C(13) bond length is 1.39 Å. The C(1)-C(2) bond length is 1.35 Å. The C(1)-H(1) bond length is 0.95 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(19), and one C(3) atom. The C(2)-C(19) bond length is 1.50 Å. The C(2)-C(3) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(15), one C(2), and one H(2) atom. The C(3)-C(15) bond length is 1.39 Å. The C(3)-H(2) bond length is 0.95 Å. In the fourth C site, C(4) is bonded in a water-like geometry to one C(15), one C(6), one H(3), and one H(4) atom. The C(4)-C(15) bond length is 1.70 Å. The C(4)-C(6) bond length is 1.58 Å. The C(4)-H(3) bond length is 0.99 Å. The C(4)-H(4) bond length is 0.99 Å. In the fifth C site, C(5) is bonded in a water-like geometry to one C(15), one C(6), one H(5), and one H(6) atom. The C(5)-C(15) bond length is 1.62 Å. The C(5)-C(6) bond length is 1.49 Å. The C(5)-H(5) bond length is 0.99 Å. The C(5)-H(6) bond length is 0.99 Å. In the sixth C site, C(6) is bonded in a distorted trigonal non-coplanar geometry to one C(16), one C(4), and one C(5) atom. The C(6)-C(16) bond length is 1.53 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(16), one C(8), and one H(7) atom. The C(7)-C(16) bond length is 1.39 Å. The C(7)-C(8) bond length is 1.39 Å. The C(7)-H(7) bond length is 0.95 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(20), one C(7), and one C(9) atom. The C(8)-C(20) bond length is 1.49 Å. The C(8)-C(9) bond length is 1.39 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(18), one C(8), and one H(8) atom. The C(9)-C(18) bond length is 1.38 Å. The C(9)-H(8) bond length is 0.95 Å. In the tenth C site, C(10) is bonded in a distorted trigonal non-coplanar geometry to one C(11), one C(12), and one C(18) atom. The C(10)-C(11) bond length is 1.57 Å. The C(10)-C(12) bond length is 1.43 Å. The C(10)-C(18) bond length is 1.52 Å. In the eleventh C site, C(11) is bonded in a water-like geometry to one C(10), one C(13), one H(10), and one H(9) atom. The C(11)-C(13) bond length is 1.59 Å. The C(11)-H(10) bond length is 0.99 Å. The C(11)-H(9) bond length is 0.99 Å. In the twelfth C site, C(12) is bonded in a distorted water-like geometry to one C(10), one C(13), one H(11), and one H(12) atom. The C(12)-C(13) bond length is 1.70 Å. The C(12)-H(11) bond length is 0.99 Å. The C(12)-H(12) bond length is 0.99 Å. In the thirteenth C site, C(13) is bonded in a 4-coordinate geometry to one C(1), one C(11), one C(12), and one C(14) atom. The C(13)-C(14) bond length is 1.35 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(17) atom. The C(14)-C(15) bond length is 1.37 Å. The C(14)-C(17) bond length is 1.47 Å. In the fifteenth C site, C(15) is bonded in a 4-coordinate geometry to one C(14), one C(3), one C(4), and one C(5) atom. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(17), one C(6), and one C(7) atom. The C(16)-C(17) bond length is 1.39 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(18) atom. The C(17)-C(18) bond length is 1.40 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one C(10), one C(17), and one C(9) atom. In the nineteenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(19)-O(1) bond length is 1.26 Å. The C(19)-O(2) bond length is 1.26 Å. In the twentieth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(3), and one O(4) atom. The C(20)-O(3) bond length is 1.28 Å. The C(20)-O(4) bond length is 1.26 Å. In the twenty-first C site, C(21) is bonded in a distorted single-bond geometry to one C(22), one C(31), and one H(13) atom. The C(21)-C(22) bond length is 1.40 Å. The C(21)-C(31) bond length is 1.38 Å. The C(21)-H(13) bond length is 0.95 Å. In the twenty-second C site, C(22) is bonded in a trigonal planar geometry to one C(21), one C(23), and one C(37) atom. The C(22)-C(23) bond length is 1.39 Å. The C(22)-C(37) bond length is 1.50 Å. In the twenty-third C site, C(23) is bonded in a distorted single-bond geometry to one C(22), one C(33), and one H(14) atom. The C(23)-C(33) bond length is 1.39 Å. The C(23)-H(14) bond length is 0.95 Å. In the twenty-fourth C site, C(24) is bonded in a water-like geometry to one C(33) and two equivalent H(15,16) atoms. The C(24)-C(33) bond length is 1.51 Å. Both C(24)-H(15,16) bond lengths are 0.99 Å. In the twenty-fifth C site, C(25) is bonded in a water-like geometry to one C(34), one H(17), and one H(18) atom. The C(25)-C(34) bond length is 1.51 Å. The C(25)-H(17) bond length is 0.99 Å. The C(25)-H(18) bond length is 0.99 Å. In the twenty-sixth C site, C(26) is bonded in a distorted single-bond geometry to one C(27), one C(34), and one H(19) atom. The C(26)-C(27) bond length is 1.39 Å. The C(26)-C(34) bond length is 1.39 Å. The C(26)-H(19) bond length is 0.95 Å. In the twenty-seventh C site, C(27) is bonded in a trigonal planar geometry to one C(26), one C(28), and one C(38) atom. The C(27)-C(28) bond length is 1.40 Å. The C(27)-C(38) bond length is 1.49 Å. In the twenty-eighth C site, C(28) is bonded in a distorted single-bond geometry to one C(27), one C(36), and one H(20) atom. The C(28)-C(36) bond length is 1.39 Å. The C(28)-H(20) bond length is 0.95 Å. In the twenty-ninth C site, C(29) is bonded in a water-like geometry to one C(36) and two equivalent H(21,22) atoms. The C(29)-C(36) bond length is 1.51 Å. Both C(29)-H(21,22) bond lengths are 0.99 Å. In the thirtieth C site, C(30) is bonded in a water-like geometry to one C(31), one H(23), and one H(24) atom. The C(30)-C(31) bond length is 1.51 Å. The C(30)-H(23) bond length is 0.99 Å. The C(30)-H(24) bond length is 0.99 Å. In the thirty-first C site, C(31) is bonded in a trigonal planar geometry to one C(21), one C(30), and one C(32) atom. The C(31)-C(32) bond length is 1.41 Å. In the thirty-second C site, C(32) is bonded in a trigonal planar geometry to one C(31), one C(33), and one C(35) atom. The C(32)-C(33) bond length is 1.41 Å. The C(32)-C(35) bond length is 1.47 Å. In the thirty-third C site, C(33) is bonded in a trigonal planar geometry to one C(23), one C(24), and one C(32) atom. In the thirty-fourth C site, C(34) is bonded in a trigonal planar geometry to one C(25), one C(26), and one C(35) atom. The C(34)-C(35) bond length is 1.41 Å. In the thirty-fifth C site, C(35) is bonded in a trigonal planar geometry to one C(32), one C(34), and one C(36) atom. The C(35)-C(36) bond length is 1.40 Å. In the thirty-sixth C site, C(36) is bonded in a trigonal planar geometry to one C(28), one C(29), and one C(35) atom. In the thirty-seventh C site, C(37) is bonded in a distorted bent 120 degrees geometry to one C(22), one O(5), and one O(6) atom. The C(37)-O(5) bond length is 1.26 Å. The C(37)-O(6) bond length is 1.26 Å. In the thirty-eighth C site, C(38) is bonded in a distorted bent 120 degrees geometry to one C(27), one O(7), and one O(8) atom. The C(38)-O(7) bond length is 1.27 Å. The C(38)-O(8) bond length is 1.27 Å. There are twenty-two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one C(5) and one H(10) atom. The H(5)-H(10) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(11) atom. In the tenth H site, H(10) is bonded in a distorted single-bond geometry to one C(11) and one H(5) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(12) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(12) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(21) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(23) atom. In the fifteenth H site, H(15,16) is bonded in a single-bond geometry to one C(24) atom. In the sixteenth H site, H(17) is bonded in a single-bond geometry to one C(25) atom. In the seventeenth H site, H(18) is bonded in a single-bond geometry to one C(25) atom. In the eighteenth H site, H(19) is bonded in a single-bond geometry to one C(26) atom. In the nineteenth H site, H(20) is bonded in a single-bond geometry to one C(28) atom. In the twentieth H site, H(21,22) is bonded in a single-bond geometry to one C(29) atom. In the twenty-first H site, H(23) is bonded in a single-bond geometry to one C(30) atom. In the twenty-second H site, H(24) is bonded in a single-bond geometry to one C(30) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Cd(1), one Cd(2), and one C(19) atom. In the second O site, O(2) is bonded in a water-like geometry to one Cd(1) and one C(19) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Cd(1), one Cd(2), and one C(20) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cd(2) and one C(20) atom. In the fifth O site, O(5) is bonded in a distorted L-shaped geometry to one Cd(2) and one C(37) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Cd(2) and one C(37) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Cd(1) and one C(38) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Cd(1), one Cd(2), and one C(38) atom. Linkers: 2 [O]C(=O)c1c[c]c(-c2c([C]3CC3)cc(C([O])=O)cc2[C]2CC2)[c]c1 ,2 [O]C(=O)c1cc2c3c(c1)CCc1cc(C([O])=O)cc(c1-3)CC2. Metal clusters: 4 [Cd]. The MOF has largest included sphere 6.85 A, density 1.41 g/cm3, surface area 3519.29 m2/g, accessible volume 0.33 cm3/g