Sn2H22(C5O2)3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a trigonal bipyramidal geometry to one C(10), one C(11), one C(12), one O(1), and one O(3) atom. The Sn(1)-C(10) bond length is 2.14 Å. The Sn(1)-C(11) bond length is 2.15 Å. The Sn(1)-C(12) bond length is 2.14 Å. The Sn(1)-O(1) bond length is 2.38 Å. The Sn(1)-O(3) bond length is 2.22 Å. In the second Sn site, Sn(2) is bonded in a trigonal bipyramidal geometry to one C(13), one C(14), one C(15), one O(2), and one O(4) atom. The Sn(2)-C(13) bond length is 2.14 Å. The Sn(2)-C(14) bond length is 2.14 Å. The Sn(2)-C(15) bond length is 2.15 Å. The Sn(2)-O(2) bond length is 2.22 Å. The Sn(2)-O(4) bond length is 2.39 Å. There are fifteen inequivalent C sites. In the first C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(5), and one O(6) atom. The C(9)-C(5) bond length is 1.49 Å. The C(9)-O(5) bond length is 1.33 Å. The C(9)-O(6) bond length is 1.25 Å. In the second C site, C(10) is bonded in a distorted trigonal non-coplanar geometry to one Sn(1), one H(5), one H(6), and one H(7) atom. The C(10)-H(5) bond length is 1.10 Å. The C(10)-H(6) bond length is 1.10 Å. The C(10)-H(7) bond length is 1.10 Å. In the third C site, C(11) is bonded in a distorted trigonal non-coplanar geometry to one Sn(1), one H(10), one H(8), and one H(9) atom. The C(11)-H(10) bond length is 1.09 Å. The C(11)-H(8) bond length is 1.10 Å. The C(11)-H(9) bond length is 1.10 Å. In the fourth C site, C(12) is bonded in a distorted trigonal non-coplanar geometry to one Sn(1), one H(11), one H(12), and one H(13) atom. The C(12)-H(11) bond length is 1.10 Å. The C(12)-H(12) bond length is 1.09 Å. The C(12)-H(13) bond length is 1.09 Å. In the fifth C site, C(13) is bonded in a distorted trigonal non-coplanar geometry to one Sn(2), one H(14), one H(15), and one H(16) atom. The C(13)-H(14) bond length is 1.09 Å. The C(13)-H(15) bond length is 1.09 Å. The C(13)-H(16) bond length is 1.09 Å. In the sixth C site, C(14) is bonded in a distorted trigonal non-coplanar geometry to one Sn(2), one H(17), one H(18), and one H(19) atom. The C(14)-H(17) bond length is 1.10 Å. The C(14)-H(18) bond length is 1.10 Å. The C(14)-H(19) bond length is 1.10 Å. In the seventh C site, C(15) is bonded in a distorted trigonal non-coplanar geometry to one Sn(2), one H(20), one H(21), and one H(22) atom. The C(15)-H(20) bond length is 1.10 Å. The C(15)-H(21) bond length is 1.10 Å. The C(15)-H(22) bond length is 1.09 Å. In the eighth C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.50 Å. In the ninth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), 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 tenth C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(8) bond length is 1.51 Å. In the eleventh C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(3) atom. The C(4)-C(5) bond length is 1.41 Å. The C(4)-H(3) bond length is 1.09 Å. In the twelfth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.40 Å. In the thirteenth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(4) atom. The C(6)-H(4) bond length is 1.09 Å. In the fourteenth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.26 Å. The C(7)-O(2) bond length is 1.28 Å. In the fifteenth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.28 Å. The C(8)-O(4) bond length is 1.26 Å. There are twenty-two inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(5) and one O(6) atom. The H(1)-O(5) bond length is 1.03 Å. The H(1)-O(6) bond length is 1.62 Å. 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(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(10) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(11) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(11) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(12) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(12) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(12) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(13) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(13) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(13) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(14) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(14) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one C(14) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(15) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one C(15) atom. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one C(15) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sn(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one C(7) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sn(2) and one C(8) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one C(9) and one H(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(9) and one H(1) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(C(=O)O)c1. Metal clusters: 8 [Sn]. The MOF has largest included sphere 4.87 A, density 1.65 g/cm3, surface area 3958.88 m2/g, accessible volume 0.15 cm3/g