TmC6NH6SO8 crystallizes in the monoclinic P2_1/c space group. Tm(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form TmO7 pentagonal bipyramids that share  a cornercorner with one S(1)O4 tetrahedra and  an edgeedge with one S(1)O4 tetrahedra. The Tm(1)-O(1) bond length is 2.20 Å. The Tm(1)-O(2) bond length is 2.23 Å. The Tm(1)-O(3) bond length is 2.26 Å. The Tm(1)-O(4) bond length is 2.35 Å. The Tm(1)-O(5) bond length is 2.35 Å. The Tm(1)-O(6) bond length is 2.25 Å. The Tm(1)-O(8) bond length is 2.27 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(6) bond length is 1.50 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(3) atom. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(5)-N(1) bond length is 1.36 Å. The C(5)-H(4) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(3), 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 1.26 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one O(3) atom. The N(1)-O(3) bond length is 1.32 Å. There are six 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(2) 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 O(7) and one O(8) atom. The H(5)-O(7) bond length is 1.74 Å. The H(5)-O(8) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(7) and one O(8) atom. The H(6)-O(7) bond length is 1.67 Å. The H(6)-O(8) bond length is 1.00 Å. S(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SO4 tetrahedra that share  a cornercorner with one Tm(1)O7 pentagonal bipyramid and  an edgeedge with one Tm(1)O7 pentagonal bipyramid. The S(1)-O(4) bond length is 1.50 Å. The S(1)-O(5) bond length is 1.50 Å. The S(1)-O(6) bond length is 1.49 Å. The S(1)-O(7) bond length is 1.48 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Tm(1) and one C(6) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Tm(1) and one C(6) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Tm(1) and one N(1) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Tm(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Tm(1) and one S(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Tm(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one H(5), one H(6), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Tm(1), one H(5), and one H(6) atom. Linkers: 4 [O]C(=O)c1cc[n+]([O-])cc1. Metal clusters: 4 [Tm]. The MOF has largest included sphere 1.71 A, density 2.79 g/cm3, surface area 2468.80 m2/g, accessible volume 0.06 cm3/g