Pr20C72Sb60H24S12O138Cl41 crystallizes in the tetragonal P4_2/n space group. There are five inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 10-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one Cl(1), one Cl(2), one Cl(3), and one Cl(4) atom. The Pr(1)-O(1) bond length is 2.94 Å. The Pr(1)-O(2) bond length is 2.49 Å. The Pr(1)-O(3) bond length is 2.68 Å. The Pr(1)-O(4) bond length is 2.47 Å. The Pr(1)-O(5) bond length is 2.70 Å. The Pr(1)-O(6) bond length is 2.46 Å. The Pr(1)-Cl(1) bond length is 2.93 Å. The Pr(1)-Cl(2) bond length is 2.89 Å. The Pr(1)-Cl(3) bond length is 2.88 Å. The Pr(1)-Cl(4) bond length is 2.96 Å. In the second Pr site, Pr(2) is bonded in a 10-coordinate geometry to one O(10), one O(14), one O(15), one O(18), one O(3), one O(33), one O(9), one Cl(1), one Cl(5), and one Cl(6) atom. The Pr(2)-O(10) bond length is 2.50 Å. The Pr(2)-O(14) bond length is 2.64 Å. The Pr(2)-O(15) bond length is 2.75 Å. The Pr(2)-O(18) bond length is 2.56 Å. The Pr(2)-O(3) bond length is 2.82 Å. The Pr(2)-O(33) bond length is 2.35 Å. The Pr(2)-O(9) bond length is 2.48 Å. The Pr(2)-Cl(1) bond length is 3.02 Å. The Pr(2)-Cl(5) bond length is 3.03 Å. The Pr(2)-Cl(6) bond length is 2.91 Å. In the third Pr site, Pr(3) is bonded in a 10-coordinate geometry to one O(11), one O(12), one O(13), one O(15), one O(16), one O(31), one O(5), one Cl(1), one Cl(7), and one Cl(8) atom. The Pr(3)-O(11) bond length is 2.48 Å. The Pr(3)-O(12) bond length is 2.50 Å. The Pr(3)-O(13) bond length is 2.68 Å. The Pr(3)-O(15) bond length is 2.83 Å. The Pr(3)-O(16) bond length is 2.48 Å. The Pr(3)-O(31) bond length is 2.35 Å. The Pr(3)-O(5) bond length is 2.80 Å. The Pr(3)-Cl(1) bond length is 2.92 Å. The Pr(3)-Cl(7) bond length is 2.92 Å. The Pr(3)-Cl(8) bond length is 3.00 Å. In the fourth Pr site, Pr(4) is bonded in a 10-coordinate geometry to one O(1), one O(13), one O(14), one O(17), one O(23), one O(28), one O(7), one O(8), one Cl(1), and one Cl(9) atom. The Pr(4)-O(1) bond length is 2.63 Å. The Pr(4)-O(13) bond length is 2.78 Å. The Pr(4)-O(14) bond length is 2.78 Å. The Pr(4)-O(17) bond length is 2.44 Å. The Pr(4)-O(23) bond length is 2.55 Å. The Pr(4)-O(28) bond length is 2.39 Å. The Pr(4)-O(7) bond length is 2.53 Å. The Pr(4)-O(8) bond length is 2.49 Å. The Pr(4)-Cl(1) bond length is 2.93 Å. The Pr(4)-Cl(9) bond length is 3.02 Å. In the fifth Pr site, Pr(5) is bonded in a 10-coordinate geometry to one O(20), one O(21), one O(22), one O(26), one O(30), one O(35), two equivalent O(19), one Cl(10), and one Cl(11) atom. The Pr(5)-O(20) bond length is 2.47 Å. The Pr(5)-O(21) bond length is 2.47 Å. The Pr(5)-O(22) bond length is 2.51 Å. The Pr(5)-O(26) bond length is 2.44 Å. The Pr(5)-O(30) bond length is 2.47 Å. The Pr(5)-O(35) bond length is 2.68 Å. There is one shorter (2.75 Å) and one longer (2.83 Å) Pr(5)-O(19) bond length. The Pr(5)-Cl(10) bond length is 3.05 Å. The Pr(5)-Cl(11) bond length is 2.94 Å. There are eighteen 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(23), and one O(24) atom. The C(1)-C(2) bond length is 1.42 Å. The C(1)-O(23) bond length is 1.20 Å. The C(1)-O(24) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one S(3) atom. The C(2)-C(3) bond length is 1.36 Å. The C(2)-S(3) bond length is 1.70 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one S(3) atom. The C(5)-C(6) bond length is 1.41 Å. The C(5)-S(3) bond length is 1.69 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(25), and one O(26) atom. The C(6)-O(25) bond length is 1.25 Å. The C(6)-O(26) bond length is 1.20 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(27), and one O(28) atom. The C(7)-C(8) bond length is 1.51 Å. The C(7)-O(27) bond length is 1.20 Å. The C(7)-O(28) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(7), one C(9), and one S(2) atom. The C(8)-C(9) bond length is 1.41 Å. The C(8)-S(2) bond length is 1.71 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10), one C(8), and one H(3) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-H(3) bond length is 0.93 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(9), and one H(4) atom. The C(10)-C(11) bond length is 1.34 Å. The C(10)-H(4) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one S(2) atom. The C(11)-C(12) bond length is 1.46 Å. The C(11)-S(2) bond length is 1.70 Å. In the twelfth C site, C(12) is bonded in a bent 120 degrees geometry to one C(11), one O(29), and one O(30) atom. The C(12)-O(29) bond length is 1.21 Å. The C(12)-O(30) bond length is 1.25 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(31), and one O(32) atom. The C(13)-C(14) bond length is 1.45 Å. The C(13)-O(31) bond length is 1.25 Å. The C(13)-O(32) bond length is 1.25 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(13), one C(15), and one S(1) atom. The C(14)-C(15) bond length is 1.35 Å. The C(14)-S(1) bond length is 1.73 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(14) and one H(5) atom. The C(15)-H(5) bond length is 0.93 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(17) and one H(6) atom. The C(16)-C(17) bond length is 1.35 Å. The C(16)-H(6) bond length is 0.93 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one C(16), one C(18), and one S(1) atom. The C(17)-C(18) bond length is 1.49 Å. The C(17)-S(1) bond length is 1.72 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(17), one O(33), and one O(34) atom. The C(18)-O(33) bond length is 1.26 Å. The C(18)-O(34) bond length is 1.22 Å. There are fifteen inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 3-coordinate geometry to one O(12), one O(5), and one O(6) atom. The Sb(1)-O(12) bond length is 1.97 Å. The Sb(1)-O(5) bond length is 2.00 Å. The Sb(1)-O(6) bond length is 1.98 Å. In the second Sb site, Sb(2) is bonded in a 4-coordinate geometry to one O(1), one O(27), one O(6), and one O(7) atom. The Sb(2)-O(1) bond length is 2.00 Å. The Sb(2)-O(27) bond length is 2.62 Å. The Sb(2)-O(6) bond length is 2.02 Å. The Sb(2)-O(7) bond length is 2.01 Å. In the third Sb site, Sb(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(8) atom. The Sb(3)-O(1) bond length is 1.98 Å. The Sb(3)-O(2) bond length is 1.96 Å. The Sb(3)-O(8) bond length is 1.97 Å. In the fourth Sb site, Sb(4) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(9) atom. The Sb(4)-O(2) bond length is 1.99 Å. The Sb(4)-O(3) bond length is 1.99 Å. The Sb(4)-O(9) bond length is 1.96 Å. In the fifth Sb site, Sb(5) is bonded in a 3-coordinate geometry to one O(10), one O(3), and one O(4) atom. The Sb(5)-O(10) bond length is 1.97 Å. The Sb(5)-O(3) bond length is 1.99 Å. The Sb(5)-O(4) bond length is 2.00 Å. In the sixth Sb site, Sb(6) is bonded in a 3-coordinate geometry to one O(11), one O(4), and one O(5) atom. The Sb(6)-O(11) bond length is 1.99 Å. The Sb(6)-O(4) bond length is 1.99 Å. The Sb(6)-O(5) bond length is 2.00 Å. In the seventh Sb site, Sb(7) is bonded in a 3-coordinate geometry to one O(12), one O(13), and one O(7) atom. The Sb(7)-O(12) bond length is 1.98 Å. The Sb(7)-O(13) bond length is 2.01 Å. The Sb(7)-O(7) bond length is 1.96 Å. In the eighth Sb site, Sb(8) is bonded in a 2-coordinate geometry to one O(14), one O(8), and one O(9) atom. The Sb(8)-O(14) bond length is 2.00 Å. The Sb(8)-O(8) bond length is 1.98 Å. The Sb(8)-O(9) bond length is 2.01 Å. In the ninth Sb site, Sb(9) is bonded in a 3-coordinate geometry to one O(10), one O(11), and one O(15) atom. The Sb(9)-O(10) bond length is 1.98 Å. The Sb(9)-O(11) bond length is 1.98 Å. The Sb(9)-O(15) bond length is 1.99 Å. In the tenth Sb site, Sb(10) is bonded in a 3-coordinate geometry to one O(14), one O(17), and one O(18) atom. The Sb(10)-O(14) bond length is 2.02 Å. The Sb(10)-O(17) bond length is 1.98 Å. The Sb(10)-O(18) bond length is 1.98 Å. In the eleventh Sb site, Sb(11) is bonded in a 3-coordinate geometry to one O(15), one O(16), and one O(18) atom. The Sb(11)-O(15) bond length is 1.98 Å. The Sb(11)-O(16) bond length is 1.99 Å. The Sb(11)-O(18) bond length is 1.98 Å. In the twelfth Sb site, Sb(12) is bonded in a 3-coordinate geometry to one O(13), one O(16), and one O(17) atom. The Sb(12)-O(13) bond length is 1.99 Å. The Sb(12)-O(16) bond length is 2.00 Å. The Sb(12)-O(17) bond length is 1.99 Å. In the thirteenth Sb site, Sb(13) is bonded in a 4-coordinate geometry to one O(19), one O(20), one O(22), and one O(25) atom. The Sb(13)-O(19) bond length is 1.97 Å. The Sb(13)-O(20) bond length is 2.03 Å. The Sb(13)-O(22) bond length is 2.02 Å. The Sb(13)-O(25) bond length is 2.53 Å. In the fourteenth Sb site, Sb(14) is bonded in a 3-coordinate geometry to one O(19), one O(21), and one O(22) atom. The Sb(14)-O(19) bond length is 1.99 Å. The Sb(14)-O(21) bond length is 1.98 Å. The Sb(14)-O(22) bond length is 1.97 Å. In the fifteenth Sb site, Sb(15) is bonded in a 3-coordinate geometry to one O(20), one O(21), and one O(35) atom. The Sb(15)-O(20) bond length is 1.97 Å. The Sb(15)-O(21) bond length is 1.99 Å. The Sb(15)-O(35) bond length is 2.01 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(10) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(15) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(16) atom. There are three inequivalent S sites. In the first S site, S(1) is bonded in an L-shaped geometry to one C(14) and one C(17) atom. In the second S site, S(2) is bonded in an L-shaped geometry to one C(11) and one C(8) atom. In the third S site, S(3) is bonded in an L-shaped geometry to one C(2) and one C(5) atom. There are thirty-five inequivalent O sites. In the first O site, O(35) is bonded in a 4-coordinate geometry to two equivalent Pr(5) and two equivalent Sb(15) atoms. In the second O site, O(1) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(4), one Sb(2), and one Sb(3) atom. In the third O site, O(2) is bonded in a distorted trigonal planar geometry to one Pr(1), one Sb(3), and one Sb(4) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Sb(4), and one Sb(5) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Pr(1), one Sb(5), and one Sb(6) atom. In the sixth O site, O(5) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(3), one Sb(1), and one Sb(6) atom. In the seventh O site, O(6) is bonded in a distorted trigonal planar geometry to one Pr(1), one Sb(1), and one Sb(2) atom. In the eighth O site, O(7) is bonded in a trigonal non-coplanar geometry to one Pr(4), one Sb(2), and one Sb(7) atom. In the ninth O site, O(8) is bonded in a distorted trigonal planar geometry to one Pr(4), one Sb(3), and one Sb(8) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Pr(2), one Sb(4), and one Sb(8) atom. In the eleventh O site, O(10) is bonded in a trigonal planar geometry to one Pr(2), one Sb(5), and one Sb(9) atom. In the twelfth O site, O(11) is bonded in a distorted trigonal planar geometry to one Pr(3), one Sb(6), and one Sb(9) atom. In the thirteenth O site, O(12) is bonded in a trigonal non-coplanar geometry to one Pr(3), one Sb(1), and one Sb(7) atom. In the fourteenth O site, O(13) is bonded in a 4-coordinate geometry to one Pr(3), one Pr(4), one Sb(12), and one Sb(7) atom. In the fifteenth O site, O(14) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(4), one Sb(10), and one Sb(8) atom. In the sixteenth O site, O(15) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(3), one Sb(11), and one Sb(9) atom. In the seventeenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Pr(3), one Sb(11), and one Sb(12) atom. In the eighteenth O site, O(17) is bonded in a trigonal planar geometry to one Pr(4), one Sb(10), and one Sb(12) atom. In the nineteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Pr(2), one Sb(10), and one Sb(11) atom. In the twentieth O site, O(19) is bonded in a 2-coordinate geometry to two equivalent Pr(5), one Sb(13), and one Sb(14) atom. In the twenty-first O site, O(20) is bonded in a distorted trigonal planar geometry to one Pr(5), one Sb(13), and one Sb(15) atom. In the twenty-second O site, O(21) is bonded in a distorted trigonal planar geometry to one Pr(5), one Sb(14), and one Sb(15) atom. In the twenty-third O site, O(22) is bonded in a trigonal non-coplanar geometry to one Pr(5), one Sb(13), and one Sb(14) atom. In the twenty-fourth O site, O(23) is bonded in a distorted single-bond geometry to one Pr(4) and one C(1) atom. In the twenty-fifth O site, O(24) is bonded in a single-bond geometry to one C(1) atom. In the twenty-sixth O site, O(25) is bonded in a single-bond geometry to one C(6) and one Sb(13) atom. In the twenty-seventh O site, O(26) is bonded in a distorted bent 150 degrees geometry to one Pr(5) and one C(6) atom. In the twenty-eighth O site, O(27) is bonded in a single-bond geometry to one C(7) and one Sb(2) atom. In the twenty-ninth O site, O(28) is bonded in a distorted bent 150 degrees geometry to one Pr(4) and one C(7) atom. In the thirtieth O site, O(29) is bonded in a single-bond geometry to one C(12) atom. In the thirty-first O site, O(30) is bonded in a distorted bent 150 degrees geometry to one Pr(5) and one C(12) atom. In the thirty-second O site, O(31) is bonded in a bent 150 degrees geometry to one Pr(3) and one C(13) atom. In the thirty-third O site, O(32) is bonded in a single-bond geometry to one C(13) atom. In the thirty-fourth O site, O(33) is bonded in a bent 150 degrees geometry to one Pr(2) and one C(18) atom. In the thirty-fifth O site, O(34) is bonded in a single-bond geometry to one C(18) atom. There are eleven inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a tetrahedral geometry to one Pr(1), one Pr(2), one Pr(3), and one Pr(4) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Pr(1) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one Pr(1) atom. In the fourth Cl site, Cl(4) is bonded in a single-bond geometry to one Pr(1) atom. In the fifth Cl site, Cl(5) is bonded in a single-bond geometry to one Pr(2) atom. In the sixth Cl site, Cl(6) is bonded in a single-bond geometry to one Pr(2) atom. In the seventh Cl site, Cl(7) is bonded in a single-bond geometry to one Pr(3) atom. In the eighth Cl site, Cl(8) is bonded in a single-bond geometry to one Pr(3) atom. In the ninth Cl site, Cl(9) is bonded in a single-bond geometry to one Pr(4) atom. In the tenth Cl site, Cl(10) is bonded in a single-bond geometry to one Pr(5) atom. In the eleventh Cl site, Cl(11) is bonded in a tetrahedral geometry to four equivalent Pr(5) atoms. Linkers: 10 O1[Sb]2O[Sb]3O[Sb]1O[Sb]1O[Sb]4O[Sb](O1)O[Sb]1O[Sb](O[Sb](O1)O[Sb]1O[Sb](O[Sb](O1)O4)O2)O3 ,24 [O]C(=O)c1ccc(C([O])=O)s1. Metal clusters: 8 Cl[Pr](Cl)Cl.O=[C]O[Pr](Cl)(Cl)Cl.O=[C]O[Pr](Cl)Cl.O=[C]O[Pr](Cl)O[C]=O ,2 O=[C]O[Pr](Cl)(O[C]=O)O[Pr](Cl)(Cl)(O[C]=O)O[C]=O.O=[C]O[Pr](Cl)(O[C]=O)O[Pr](Cl)(O[C]=O)O[C]=O. The MOF has largest included sphere 9.31 A, density 1.36 g/cm3, surface area 1671.44 m2/g, accessible volume 0.51 cm3/g