Cd3H14(C17O7)2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(3), one O(4), one O(5), and one O(6) atom. The Cd(1)-O(10) bond length is 2.40 Å. The Cd(1)-O(11) bond length is 2.35 Å. The Cd(1)-O(12) bond length is 2.28 Å. The Cd(1)-O(13) bond length is 2.47 Å. The Cd(1)-O(14) bond length is 2.38 Å. The Cd(1)-O(3) bond length is 2.35 Å. The Cd(1)-O(4) bond length is 2.66 Å. The Cd(1)-O(5) bond length is 2.34 Å. The Cd(1)-O(6) bond length is 2.30 Å. In the second Cd site, Cd(2) is bonded in a 2-coordinate geometry to one O(4), one O(7), and one O(9) atom. The Cd(2)-O(4) bond length is 2.30 Å. The Cd(2)-O(7) bond length is 2.36 Å. The Cd(2)-O(9) bond length is 2.23 Å. In the third Cd site, Cd(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), one O(4), and one O(7) atom. The Cd(3)-O(1) bond length is 2.29 Å. The Cd(3)-O(2) bond length is 2.22 Å. The Cd(3)-O(4) bond length is 2.41 Å. The Cd(3)-O(7) bond length is 2.34 Å. There are thirty-four inequivalent C sites. In the first C site, C(18) is bonded in a trigonal planar geometry to one C(13), one C(17), and one C(19) atom. The C(18)-C(13) bond length is 1.51 Å. The C(18)-C(17) bond length is 1.39 Å. The C(18)-C(19) bond length is 1.40 Å. In the second C site, C(19) is bonded in a distorted single-bond geometry to one C(18), one C(21), and one H(9) atom. The C(19)-C(21) bond length is 1.39 Å. The C(19)-H(9) bond length is 0.93 Å. In the third C site, C(1) is bonded in a distorted single-bond geometry to one C(34), one C(6), and one H(1) atom. The C(1)-C(34) bond length is 1.39 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-H(1) bond length is 0.93 Å. In the fourth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(29), one O(1), and one O(8) atom. The C(2)-C(29) bond length is 1.50 Å. The C(2)-O(1) bond length is 1.22 Å. The C(2)-O(8) bond length is 1.29 Å. In the fifth C site, C(3) is bonded in a distorted single-bond geometry to one C(24) and one H(2) atom. The C(3)-C(24) bond length is 1.30 Å. The C(3)-H(2) bond length is 0.93 Å. In the sixth C site, C(4) is bonded in a distorted single-bond geometry to one C(27) and one H(3) atom. The C(4)-C(27) bond length is 1.33 Å. The C(4)-H(3) bond length is 0.93 Å. In the seventh C site, C(5) is bonded in a distorted trigonal planar geometry to one C(24), one C(25), and one H(4) atom. The C(5)-C(24) bond length is 1.35 Å. The C(5)-C(25) bond length is 1.41 Å. The C(5)-H(4) bond length is 0.93 Å. In the eighth C site, C(6) is bonded in a trigonal planar geometry to one C(1), one C(14), and one C(7) atom. The C(6)-C(14) bond length is 1.49 Å. The C(6)-C(7) bond length is 1.38 Å. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to one C(32), one C(6), and one H(5) atom. The C(7)-C(32) bond length is 1.39 Å. The C(7)-H(5) bond length is 0.93 Å. In the tenth C site, C(8) is bonded in a linear geometry to one C(34) and one C(9) atom. The C(8)-C(34) bond length is 1.45 Å. The C(8)-C(9) bond length is 1.18 Å. In the eleventh C site, C(9) is bonded in a linear geometry to one C(10) and one C(8) atom. The C(9)-C(10) bond length is 1.44 Å. In the twelfth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(9) atom. The C(10)-C(11) bond length is 1.36 Å. The C(10)-C(12) bond length is 1.29 Å. In the thirteenth C site, C(11) is bonded in a distorted single-bond geometry to one C(10) and one H(6) atom. The C(11)-H(6) bond length is 0.93 Å. In the fourteenth C site, C(12) is bonded in a distorted single-bond geometry to one C(10) and one H(7) atom. The C(12)-H(7) bond length is 0.93 Å. In the fifteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(18), one O(6), and one O(7) atom. The C(13)-O(6) bond length is 1.24 Å. The C(13)-O(7) bond length is 1.27 Å. In the sixteenth C site, C(14) is bonded in a bent 120 degrees geometry to one C(6), one O(4), and one O(5) atom. The C(14)-O(4) bond length is 1.28 Å. The C(14)-O(5) bond length is 1.23 Å. In the seventeenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(16), one O(2), and one O(3) atom. The C(15)-C(16) bond length is 1.51 Å. The C(15)-O(2) bond length is 1.26 Å. The C(15)-O(3) bond length is 1.25 Å. In the eighteenth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(20) atom. The C(16)-C(17) bond length is 1.39 Å. The C(16)-C(20) bond length is 1.39 Å. In the nineteenth C site, C(22) is bonded in a linear geometry to one C(21) and one C(23) atom. The C(22)-C(21) bond length is 1.44 Å. The C(22)-C(23) bond length is 1.18 Å. In the twentieth C site, C(23) is bonded in a linear geometry to one C(22) and one C(24) atom. The C(23)-C(24) bond length is 1.45 Å. In the twenty-first C site, C(24) is bonded in a trigonal planar geometry to one C(23), one C(3), and one C(5) atom. In the twenty-second C site, C(25) is bonded in a distorted single-bond geometry to one C(27), one C(5), and one H(11) atom. The C(25)-C(27) bond length is 1.35 Å. The C(25)-H(11) bond length is 0.93 Å. In the twenty-third C site, C(26) is bonded in a distorted single-bond geometry to one C(29) and one H(12) atom. The C(26)-C(29) bond length is 1.30 Å. The C(26)-H(12) bond length is 0.93 Å. In the twenty-fourth C site, C(27) is bonded in a trigonal planar geometry to one C(25), one C(28), and one C(4) atom. The C(27)-C(28) bond length is 1.50 Å. In the twenty-fifth C site, C(28) is bonded in a 5-coordinate geometry to one C(27), one O(11), one O(12), one O(13), and one O(14) atom. The C(28)-O(11) bond length is 1.20 Å. The C(28)-O(12) bond length is 1.18 Å. The C(28)-O(13) bond length is 1.33 Å. The C(28)-O(14) bond length is 1.34 Å. In the twenty-sixth C site, C(29) is bonded in a trigonal planar geometry to one C(2), one C(26), and one C(30) atom. The C(29)-C(30) bond length is 1.35 Å. In the twenty-seventh C site, C(30) is bonded in a distorted single-bond geometry to one C(29) and one H(13) atom. The C(30)-H(13) bond length is 0.93 Å. In the twenty-eighth C site, C(31) is bonded in a distorted bent 120 degrees geometry to one C(32), one O(10), and one O(9) atom. The C(31)-C(32) bond length is 1.50 Å. The C(31)-O(10) bond length is 1.25 Å. The C(31)-O(9) bond length is 1.26 Å. In the twenty-ninth C site, C(32) is bonded in a trigonal planar geometry to one C(31), one C(33), and one C(7) atom. The C(32)-C(33) bond length is 1.38 Å. In the thirtieth C site, C(33) is bonded in a distorted single-bond geometry to one C(32), one C(34), and one H(14) atom. The C(33)-C(34) bond length is 1.39 Å. The C(33)-H(14) bond length is 0.93 Å. In the thirty-first C site, C(34) is bonded in a trigonal planar geometry to one C(1), one C(33), and one C(8) atom. In the thirty-second C site, C(20) is bonded in a distorted trigonal planar geometry to one C(16), one C(21), and one H(10) atom. The C(20)-C(21) bond length is 1.39 Å. The C(20)-H(10) bond length is 0.93 Å. In the thirty-third C site, C(21) is bonded in a trigonal planar geometry to one C(19), one C(20), and one C(22) atom. In the thirty-fourth C site, C(17) is bonded in a distorted single-bond geometry to one C(16), one C(18), and one H(8) atom. The C(17)-H(8) bond length is 0.93 Å. There are fourteen 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(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 single-bond geometry to one C(11) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(17) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(19) atom. In the tenth H site, H(10) is bonded in a 1-coordinate geometry to one C(20) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(25) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(26) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(30) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(33) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Cd(3) and one C(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cd(3) and one C(15) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one Cd(2), one Cd(3), and one C(13) atom. In the fourth O site, O(9) is bonded in a water-like geometry to one Cd(2) and one C(31) atom. In the fifth O site, O(10) is bonded in a distorted single-bond geometry to one Cd(1) and one C(31) atom. In the sixth O site, O(11) is bonded in a 2-coordinate geometry to one Cd(1), one C(28), and one O(13) atom. The O(11)-O(13) bond length is 0.83 Å. In the seventh O site, O(12) is bonded in a 2-coordinate geometry to one Cd(1), one C(28), and one O(14) atom. The O(12)-O(14) bond length is 0.82 Å. In the eighth O site, O(13) is bonded in a 2-coordinate geometry to one Cd(1), one C(28), and one O(11) atom. In the ninth O site, O(14) is bonded in a 3-coordinate geometry to one Cd(1), one C(28), and one O(12) atom. In the tenth O site, O(8) is bonded in a single-bond geometry to one C(2) atom. In the eleventh O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1) and one C(15) atom. In the twelfth O site, O(4) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(2), one Cd(3), and one C(14) atom. In the thirteenth O site, O(6) is bonded in a bent 120 degrees geometry to one Cd(1) and one C(13) atom. In the fourteenth O site, O(5) is bonded in a water-like geometry to one Cd(1) and one C(14) atom. Linkers: 8 [O]C(=O)c1ccc(C#Cc2cc(C([O])=O)cc(C([O])=O)c2)cc1 ,8 [O]C(=O)c1cc(C#Cc2cc[c]cc2)cc(C([O])=O)c1.[O]O[C]O[O]. Metal clusters: 7 [O]O[Cd]12(O[O])O[C]O[Cd](O[C]O[Cd]3(O[C]O3)O[C]O1)O[C]O2 ,1 [O]O[Cd]12(O[O])O[C]O[Cd](O[C]O[Cd](O[C]=O)O[C]O1)O[C]O2. The MOF has largest included sphere 9.24 A, density 0.92 g/cm3, surface area 3325.93 m2/g, accessible volume 0.71 cm3/g