LaC12H15S2O15 crystallizes in the triclinic P-1 space group. La(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), one O(3), and one O(8) atom. The La(1)-O(1) bond length is 2.55 Å. The La(1)-O(11) bond length is 2.53 Å. The La(1)-O(12) bond length is 2.56 Å. The La(1)-O(13) bond length is 2.54 Å. The La(1)-O(14) bond length is 2.52 Å. The La(1)-O(15) bond length is 2.52 Å. The La(1)-O(2) bond length is 2.61 Å. The La(1)-O(3) bond length is 2.56 Å. The La(1)-O(8) bond length is 2.56 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(5), and one H(12) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-C(5) bond length is 1.41 Å. The C(1)-H(12) bond length is 1.09 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(6) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-C(6) bond length is 1.49 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(13) atom. The C(3)-C(4) bond length is 1.37 Å. The C(3)-H(13) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one S(1) atom. The C(4)-C(5) bond length is 1.43 Å. The C(4)-S(1) bond length is 1.78 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(5) atom. The C(5)-C(5) bond length is 1.44 Å. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(6)-O(1) bond length is 1.27 Å. The C(6)-O(2) bond length is 1.29 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(11), one C(8), and one H(14) atom. The C(7)-C(11) bond length is 1.42 Å. The C(7)-C(8) bond length is 1.38 Å. The C(7)-H(14) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(12), one C(7), and one C(9) atom. The C(8)-C(12) bond length is 1.49 Å. The C(8)-C(9) bond length is 1.41 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one H(15) atom. The C(9)-C(10) bond length is 1.37 Å. The C(9)-H(15) bond length is 1.08 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(9), and one S(2) atom. The C(10)-C(11) bond length is 1.43 Å. The C(10)-S(2) bond length is 1.79 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(7) atom. The C(11)-C(11) bond length is 1.45 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(6), and one O(7) atom. The C(12)-O(6) bond length is 1.33 Å. The C(12)-O(7) bond length is 1.24 Å. There are fifteen inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(4) and one O(6) atom. The H(1)-O(4) bond length is 1.68 Å. The H(1)-O(6) bond length is 1.01 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(11) atom. The H(2)-O(11) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(11) atom. The H(3)-O(11) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(12) atom. The H(4)-O(12) bond length is 0.99 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) atom. The H(5)-O(12) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(13) and one O(9) atom. The H(6)-O(13) bond length is 0.99 Å. The H(6)-O(9) bond length is 1.72 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(13) atom. The H(7)-O(13) bond length is 0.97 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(14) atom. The H(8)-O(14) bond length is 0.99 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(14) and one O(9) atom. The H(9)-O(14) bond length is 0.99 Å. The H(9)-O(9) bond length is 1.72 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(10) and one O(15) atom. The H(10)-O(10) bond length is 1.71 Å. The H(10)-O(15) bond length is 0.99 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(15) atom. The H(11)-O(15) bond length is 0.99 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(1) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(3) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(7) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(9) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one C(4), one O(3), one O(4), and one O(5) atom. The S(1)-O(3) bond length is 1.47 Å. The S(1)-O(4) bond length is 1.48 Å. The S(1)-O(5) bond length is 1.48 Å. In the second S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one C(10), one O(10), one O(8), and one O(9) atom. The S(2)-O(10) bond length is 1.46 Å. The S(2)-O(8) bond length is 1.47 Å. The S(2)-O(9) bond length is 1.48 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1) and one C(6) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one La(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one H(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one S(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one C(12) and one H(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one La(1) and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one H(6), one H(9), and one S(2) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one H(10) and one S(2) atom. In the eleventh O site, O(11) is bonded in a water-like geometry to one La(1), one H(2), and one H(3) atom. In the twelfth O site, O(12) is bonded in a water-like geometry to one La(1), one H(4), and one H(5) atom. In the thirteenth O site, O(13) is bonded in a water-like geometry to one La(1), one H(6), and one H(7) atom. In the fourteenth O site, O(14) is bonded in a water-like geometry to one La(1), one H(8), and one H(9) atom. In the fifteenth O site, O(15) is bonded in a water-like geometry to one La(1), one H(10), and one H(11) atom. Linkers: 1 [O]C(=O)c1cc(S([O])([O])[O])c2cc(C([O])=O)cc(S([O])([O])[O])c2c1 ,1 [O]S([O])([O])c1cc(C(=O)O)cc2c(S([O])([O])[O])cc(C(=O)O)cc12 ,2 [O][C]c1cc(S([O])([O])[O])c2cc(C(=O)O)cc(S([O])([O])[O])c2c1. Metal clusters: 2 O.O.O.O.O.[O][S@@](=O)O[La]1(O[S@@]([O])=O)O[C]O1. RCSR code: bex. The MOF has largest included sphere 1.98 A, density 2.19 g/cm3, surface area 3348.84 m2/g, accessible volume 0.08 cm3/g