SnC8H4O3 crystallizes in the triclinic P-1 space group. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(4) atom. The Sn(1)-O(1) bond length is 2.13 Å. The Sn(1)-O(2) bond length is 2.25 Å. The Sn(1)-O(4) bond length is 2.26 Å. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to one O(1), one O(5), one O(6), and one O(7) atom. The Sn(2)-O(1) bond length is 2.11 Å. The Sn(2)-O(5) bond length is 2.31 Å. The Sn(2)-O(6) bond length is 2.26 Å. The Sn(2)-O(7) bond length is 2.57 Å. In the third Sn site, Sn(3) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(8), and one O(9) atom. The Sn(3)-O(1) bond length is 2.14 Å. The Sn(3)-O(3) bond length is 2.41 Å. The Sn(3)-O(8) bond length is 2.45 Å. The Sn(3)-O(9) bond length is 2.35 Å. There are twenty-four 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(2), and one O(3) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(2) bond length is 1.29 Å. The C(1)-O(3) bond length is 1.28 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(5) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(5) bond length is 1.42 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.42 Å. The C(3)-H(1) 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(4), and one C(6) atom. The C(4)-C(4) bond length is 1.44 Å. The C(4)-C(6) bond length is 1.42 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(2) and one H(2) atom. The C(5)-H(2) 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) and one H(3) atom. The C(6)-H(3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(4), and one O(5) atom. The C(7)-C(8) bond length is 1.49 Å. The C(7)-O(4) bond length is 1.29 Å. The C(7)-O(5) bond length is 1.28 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(11), one C(7), and one C(9) atom. The C(8)-C(11) bond length is 1.42 Å. The C(8)-C(9) bond length is 1.39 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(4) atom. The C(9)-C(10) bond length is 1.41 Å. The C(9)-H(4) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(9) atom. The C(10)-C(10) bond length is 1.43 Å. The C(10)-C(12) bond length is 1.42 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(8) and one H(5) atom. The C(11)-H(5) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(10) and one H(6) atom. The C(12)-H(6) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(6), and one O(7) atom. The C(13)-C(14) bond length is 1.48 Å. The C(13)-O(6) bond length is 1.30 Å. The C(13)-O(7) bond length is 1.26 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(17) atom. The C(14)-C(15) bond length is 1.42 Å. The C(14)-C(17) bond length is 1.38 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(14) and one H(7) atom. The C(15)-H(7) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(18) and one H(8) atom. The C(16)-C(18) bond length is 1.42 Å. The C(16)-H(8) bond length is 1.09 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(14), one C(18), and one H(9) atom. The C(17)-C(18) bond length is 1.41 Å. The C(17)-H(9) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one C(16), one C(17), and one C(18) atom. The C(18)-C(18) bond length is 1.44 Å. In the nineteenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one C(20), one O(8), and one O(9) atom. The C(19)-C(20) bond length is 1.49 Å. The C(19)-O(8) bond length is 1.27 Å. The C(19)-O(9) bond length is 1.30 Å. In the twentieth C site, C(20) is bonded in a trigonal planar geometry to one C(19), one C(21), and one C(23) atom. The C(20)-C(21) bond length is 1.39 Å. The C(20)-C(23) bond length is 1.42 Å. In the twenty-first C site, C(21) is bonded in a distorted single-bond geometry to one C(20), one C(22), and one H(10) atom. The C(21)-C(22) bond length is 1.41 Å. The C(21)-H(10) bond length is 1.09 Å. In the twenty-second C site, C(22) is bonded in a trigonal planar geometry to one C(21), one C(22), and one C(24) atom. The C(22)-C(22) bond length is 1.43 Å. The C(22)-C(24) bond length is 1.42 Å. In the twenty-third C site, C(23) is bonded in a distorted single-bond geometry to one C(20) and one H(11) atom. The C(23)-H(11) bond length is 1.09 Å. In the twenty-fourth C site, C(24) is bonded in a distorted single-bond geometry to one C(22) and one H(12) atom. The C(24)-H(12) bond length is 1.09 Å. There are twelve 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(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(15) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(16) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(17) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(21) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(23) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(24) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Sn(1), one Sn(2), and one Sn(3) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Sn(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sn(3) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Sn(1) and one C(7) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sn(2) and one C(7) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Sn(2) and one C(13) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Sn(2) and one C(13) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sn(3) and one C(19) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Sn(3) and one C(19) atom. Linkers: 4 [O]C(=O)c1ccc2cc(C([O])=O)ccc2c1. Metal clusters: 6 [Sn]. The MOF has largest included sphere 1.82 A, density 2.49 g/cm3, surface area 2500.46 m2/g, accessible volume 0.05 cm3/g