CeC17H11O9 crystallizes in the triclinic P1 space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(12), one O(15), one O(17), one O(3), one O(8), and two equivalent O(13) atoms. The Ce(1)-O(1) bond length is 2.37 Å. The Ce(1)-O(10) bond length is 2.44 Å. The Ce(1)-O(12) bond length is 2.55 Å. The Ce(1)-O(15) bond length is 2.51 Å. The Ce(1)-O(17) bond length is 2.61 Å. The Ce(1)-O(3) bond length is 2.39 Å. The Ce(1)-O(8) bond length is 2.76 Å. There is one shorter (2.53 Å) and one longer (3.03 Å) Ce(1)-O(13) bond length. In the second Ce site, Ce(2) is bonded in a 9-coordinate geometry to one O(11), one O(16), one O(18), one O(2), one O(4), one O(7), one O(9), and two equivalent O(14) atoms. The Ce(2)-O(11) bond length is 2.53 Å. The Ce(2)-O(16) bond length is 2.50 Å. The Ce(2)-O(18) bond length is 2.62 Å. The Ce(2)-O(2) bond length is 2.36 Å. The Ce(2)-O(4) bond length is 2.40 Å. The Ce(2)-O(7) bond length is 2.75 Å. The Ce(2)-O(9) bond length is 2.46 Å. There is one shorter (2.53 Å) and one longer (3.03 Å) Ce(2)-O(14) bond length. There are thirty-four inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(11); one C(3); and one H(3,4) atom. The C(1)-C(11) bond length is 1.40 Å. The C(1)-C(3) bond length is 1.40 Å. The C(1)-H(3,4) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(12); one C(4); and one H(3,4) atom. The C(2)-C(12) bond length is 1.40 Å. The C(2)-C(4) bond length is 1.40 Å. The C(2)-H(3,4) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(33), and one C(5) atom. The C(3)-C(33) bond length is 1.49 Å. The C(3)-C(5) bond length is 1.39 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(34), and one C(6) atom. The C(4)-C(34) bond length is 1.49 Å. The C(4)-C(6) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(3); one C(7); and one H(5,6) atom. The C(5)-C(7) bond length is 1.40 Å. The C(5)-H(5,6) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4); one C(8); and one H(5,6) atom. The C(6)-C(8) bond length is 1.40 Å. The C(6)-H(5,6) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(31), one C(5), and one C(9) atom. The C(7)-C(31) bond length is 1.48 Å. The C(7)-C(9) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(10), one C(32), and one C(6) atom. The C(8)-C(10) bond length is 1.40 Å. The C(8)-C(32) bond length is 1.48 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(11); one C(7); and one H(7,8) atom. The C(9)-C(11) bond length is 1.40 Å. The C(9)-H(7,8) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(12); one C(8); and one H(7,8) atom. The C(10)-C(12) bond length is 1.40 Å. The C(10)-H(7,8) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(1), one C(13), and one C(9) atom. The C(11)-C(13) bond length is 1.51 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(2) atom. The C(12)-C(14) bond length is 1.51 Å. In the thirteenth C site, C(13) is bonded in a distorted water-like geometry to one C(11); one C(15); one H(11,12); and one H(9,10) atom. The C(13)-C(15) bond length is 1.51 Å. The C(13)-H(11,12) bond length is 1.10 Å. The C(13)-H(9,10) bond length is 1.10 Å. In the fourteenth C site, C(14) is bonded in a distorted water-like geometry to one C(12); one C(16); one H(11,12); and one H(9,10) atom. The C(14)-C(16) bond length is 1.51 Å. The C(14)-H(11,12) bond length is 1.10 Å. The C(14)-H(9,10) bond length is 1.10 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(13), one C(17), and one C(21) atom. The C(15)-C(17) bond length is 1.40 Å. The C(15)-C(21) bond length is 1.40 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(14), one C(18), and one C(22) atom. The C(16)-C(18) bond length is 1.40 Å. The C(16)-C(22) bond length is 1.40 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(15), one C(19), and one H(13) atom. The C(17)-C(19) bond length is 1.40 Å. The C(17)-H(13) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(16), one C(20), and one H(14) atom. The C(18)-C(20) bond length is 1.40 Å. The C(18)-H(14) bond length is 1.09 Å. In the nineteenth C site, C(19) is bonded in a trigonal planar geometry to one C(17), one C(25), and one C(29) atom. The C(19)-C(25) bond length is 1.40 Å. The C(19)-C(29) bond length is 1.50 Å. In the twentieth C site, C(20) is bonded in a trigonal planar geometry to one C(18), one C(26), and one C(30) atom. The C(20)-C(26) bond length is 1.40 Å. The C(20)-C(30) bond length is 1.50 Å. In the twenty-first C site, C(21) is bonded in a distorted single-bond geometry to one C(15), one C(23), and one H(15) atom. The C(21)-C(23) bond length is 1.41 Å. The C(21)-H(15) bond length is 1.09 Å. In the twenty-second C site, C(22) is bonded in a distorted single-bond geometry to one C(16), one C(24), and one H(16) atom. The C(22)-C(24) bond length is 1.40 Å. The C(22)-H(16) bond length is 1.09 Å. In the twenty-third C site, C(23) is bonded in a trigonal planar geometry to one C(21), one C(25), and one C(27) atom. The C(23)-C(25) bond length is 1.40 Å. The C(23)-C(27) bond length is 1.48 Å. In the twenty-fourth C site, C(24) is bonded in a trigonal planar geometry to one C(22), one C(26), and one C(28) atom. The C(24)-C(26) bond length is 1.40 Å. The C(24)-C(28) bond length is 1.48 Å. In the twenty-fifth C site, C(25) is bonded in a distorted single-bond geometry to one C(19), one C(23), and one H(17) atom. The C(25)-H(17) bond length is 1.09 Å. In the twenty-sixth C site, C(26) is bonded in a distorted single-bond geometry to one C(20), one C(24), and one H(18) atom. The C(26)-H(18) bond length is 1.09 Å. In the twenty-seventh C site, C(27) is bonded in a distorted bent 120 degrees geometry to one C(23), one O(13), and one O(15) atom. The C(27)-O(13) bond length is 1.27 Å. The C(27)-O(15) bond length is 1.29 Å. In the twenty-eighth C site, C(28) is bonded in a distorted bent 120 degrees geometry to one C(24), one O(14), and one O(16) atom. The C(28)-O(14) bond length is 1.27 Å. The C(28)-O(16) bond length is 1.29 Å. In the twenty-ninth C site, C(29) is bonded in a bent 120 degrees geometry to one C(19), one O(11), and one O(9) atom. The C(29)-O(11) bond length is 1.28 Å. The C(29)-O(9) bond length is 1.28 Å. In the thirtieth C site, C(30) is bonded in a bent 120 degrees geometry to one C(20), one O(10), and one O(12) atom. The C(30)-O(10) bond length is 1.28 Å. The C(30)-O(12) bond length is 1.28 Å. In the thirty-first C site, C(31) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(5), and one O(7) atom. The C(31)-O(5) bond length is 1.32 Å. The C(31)-O(7) bond length is 1.25 Å. In the thirty-second C site, C(32) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(6), and one O(8) atom. The C(32)-O(6) bond length is 1.32 Å. The C(32)-O(8) bond length is 1.25 Å. In the thirty-third C site, C(33) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(33)-O(1) bond length is 1.27 Å. The C(33)-O(3) bond length is 1.28 Å. In the thirty-fourth C site, C(34) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(4) atom. The C(34)-O(2) bond length is 1.28 Å. The C(34)-O(4) bond length is 1.28 Å. There are seventeen inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(16) and one O(5) atom. The H(1)-O(16) bond length is 1.52 Å. The H(1)-O(5) bond length is 1.03 Å. In the second H site, H(2) is bonded in a linear geometry to one O(15) and one O(6) atom. The H(2)-O(15) bond length is 1.51 Å. The H(2)-O(6) bond length is 1.03 Å. In the third H site, H(3,4) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(5,6) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(7,8) is bonded in a single-bond geometry to one C(9) atom. In the sixth H site, H(9,10) is bonded in a single-bond geometry to one C(13) atom. In the seventh H site, H(11,12) is bonded in a single-bond geometry to one C(13) atom. In the eighth H site, H(13) is bonded in a single-bond geometry to one C(17) atom. In the ninth H site, H(14) is bonded in a single-bond geometry to one C(18) atom. In the tenth H site, H(15) is bonded in a single-bond geometry to one C(21) atom. In the eleventh H site, H(16) is bonded in a single-bond geometry to one C(22) atom. In the twelfth H site, H(17) is bonded in a single-bond geometry to one C(25) atom. In the thirteenth H site, H(18) is bonded in a single-bond geometry to one C(26) atom. In the fourteenth H site, H(19) is bonded in a single-bond geometry to one O(17) atom. The H(19)-O(17) bond length is 1.00 Å. In the fifteenth H site, H(20) is bonded in a single-bond geometry to one O(18) atom. The H(20)-O(18) bond length is 1.00 Å. In the sixteenth H site, H(21) is bonded in a single-bond geometry to one O(17) atom. The H(21)-O(17) bond length is 0.97 Å. In the seventeenth H site, H(22) is bonded in a single-bond geometry to one O(18) atom. The H(22)-O(18) bond length is 0.97 Å. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(33) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Ce(2) and one C(34) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ce(1) and one C(33) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ce(2) and one C(34) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one C(31) and one H(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one C(32) and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Ce(2) and one C(31) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Ce(1) and one C(32) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ce(2) and one C(29) atom. In the tenth O site, O(10) is bonded in a distorted L-shaped geometry to one Ce(1) and one C(30) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Ce(2) and one C(29) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Ce(1) and one C(30) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to two equivalent Ce(1) and one C(27) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to two equivalent Ce(2) and one C(28) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Ce(1), one C(27), and one H(2) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Ce(2), one C(28), and one H(1) atom. In the seventeenth O site, O(17) is bonded in a water-like geometry to one Ce(1), one H(19), and one H(21) atom. In the eighteenth O site, O(18) is bonded in a water-like geometry to one Ce(2), one H(20), and one H(22) atom. Linkers: 2 [O]C(=O)c1cc(Cc2cc(C([O])=O)cc(C(=O)O)c2)cc(C([O])=O)c1. Metal clusters: 2 [Ce]. RCSR code: irl. The MOF has largest included sphere 2.57 A, density 1.99 g/cm3, surface area 3191.21 m2/g, accessible volume 0.11 cm3/g