Na3TbLa2C28(S2O13)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted rectangular see-saw-like geometry to one O(13), one O(5), and two equivalent O(1) atoms. The Na(1)-O(13) bond length is 2.52 Å. The Na(1)-O(5) bond length is 2.28 Å. There is one shorter (2.41 Å) and one longer (2.53 Å) Na(1)-O(1) bond length. In the second Na site, Na(2) is bonded in a linear geometry to two equivalent O(8) atoms. Both Na(2)-O(8) bond lengths are 2.47 Å. Tb(1) is bonded in a 8-coordinate geometry to two equivalent O(10), two equivalent O(12), two equivalent O(4), and two equivalent O(6) atoms. Both Tb(1)-O(10) bond lengths are 2.35 Å. Both Tb(1)-O(12) bond lengths are 2.38 Å. Both Tb(1)-O(4) bond lengths are 2.33 Å. Both Tb(1)-O(6) bond lengths are 2.36 Å. La(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(5), one O(6), and one O(9) atom. The La(1)-O(11) bond length is 2.64 Å. The La(1)-O(12) bond length is 2.63 Å. The La(1)-O(13) bond length is 2.66 Å. The La(1)-O(5) bond length is 2.67 Å. The La(1)-O(6) bond length is 2.65 Å. The La(1)-O(9) bond length is 2.56 Å. There are fourteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one S(1) atom. The C(1)-C(2) bond length is 1.37 Å. The C(1)-C(6) bond length is 1.36 Å. The C(1)-S(1) bond length is 1.76 Å. In the second C site, C(2) is bonded in a bent 120 degrees geometry to one C(1) and one C(3) atom. The C(2)-C(3) bond length is 1.37 Å. In the third C site, C(3) is bonded in a bent 120 degrees geometry to one C(2) and one C(4) atom. The C(3)-C(4) bond length is 1.42 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one O(4) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-O(4) bond length is 1.34 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.42 Å. The C(5)-C(7) bond length is 1.48 Å. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(1) and one C(5) atom. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(5), and one O(6) atom. The C(7)-O(5) bond length is 1.27 Å. The C(7)-O(6) bond length is 1.27 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(13), one C(9), and one S(2) atom. The C(8)-C(13) bond length is 1.38 Å. The C(8)-C(9) bond length is 1.40 Å. The C(8)-S(2) bond length is 1.75 Å. In the ninth C site, C(9) is bonded in a bent 120 degrees geometry to one C(10) and one C(8) atom. The C(9)-C(10) bond length is 1.35 Å. In the tenth C site, C(10) is bonded in a bent 120 degrees geometry to one C(11) and one C(9) atom. The C(10)-C(11) bond length is 1.43 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one O(10) atom. The C(11)-C(12) bond length is 1.39 Å. The C(11)-O(10) bond length is 1.33 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(14) atom. The C(12)-C(13) bond length is 1.39 Å. The C(12)-C(14) bond length is 1.49 Å. In the thirteenth C site, C(13) is bonded in a bent 120 degrees geometry to one C(12) and one C(8) atom. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(11), and one O(12) atom. The C(14)-O(11) bond length is 1.25 Å. The C(14)-O(12) bond length is 1.27 Å. 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(1), one O(2), and one O(3) atom. The S(1)-O(2) bond length is 1.46 Å. The S(1)-O(3) bond length is 1.43 Å. In the second S site, S(2) is bonded in a 4-coordinate geometry to one C(8), one O(7), one O(8), and one O(9) atom. The S(2)-O(7) bond length is 1.64 Å. The S(2)-O(8) bond length is 1.36 Å. The S(2)-O(9) bond length is 1.38 Å. There are thirteen inequivalent O sites. In the first O site, O(2) is bonded in a single-bond geometry to one S(1) atom. In the second O site, O(3) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(4) is bonded in a bent 120 degrees geometry to one Tb(1) and one C(4) atom. In the fourth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one La(1), and one C(7) atom. In the fifth O site, O(6) is bonded in a 3-coordinate geometry to one Tb(1), one La(1), and one C(7) atom. In the sixth O site, O(7) is bonded in a single-bond geometry to one S(2) atom. In the seventh O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Na(2) and one S(2) atom. In the eighth O site, O(9) is bonded in a distorted single-bond geometry to one La(1) and one S(2) atom. In the ninth O site, O(10) is bonded in a bent 120 degrees geometry to one Tb(1) and one C(11) atom. In the tenth O site, O(11) is bonded in a distorted single-bond geometry to one La(1) and one C(14) atom. In the eleventh O site, O(12) is bonded in a 3-coordinate geometry to one Tb(1), one La(1), and one C(14) atom. In the twelfth O site, O(13) is bonded in a water-like geometry to one Na(1) and one La(1) atom. In the thirteenth O site, O(1) is bonded in an L-shaped geometry to two equivalent Na(1) atoms. Linkers: 8 [O]C(=O)c1[c]c([S]([O])[O])[c][c]c1[O] ,8 [O]C(=O)c1[c]c(S([O])([O])[O])[c][c]c1[O]. Metal clusters: 12 [Na] ,8 [La] ,4 [Tb]. The MOF has largest included sphere 5.68 A, density 1.45 g/cm3, surface area 3293.49 m2/g, accessible volume 0.33 cm3/g