SnC11N2H12O5 crystallizes in the triclinic P-1 space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a pentagonal bipyramidal geometry to one C(19), one C(21), one O(1), one O(3), one O(6), one O(8), and one O(9) atom. The Sn(1)-C(19) bond length is 2.13 Å. The Sn(1)-C(21) bond length is 2.13 Å. The Sn(1)-O(1) bond length is 2.31 Å. The Sn(1)-O(3) bond length is 2.41 Å. The Sn(1)-O(6) bond length is 2.35 Å. The Sn(1)-O(8) bond length is 2.52 Å. The Sn(1)-O(9) bond length is 2.26 Å. In the second Sn site, Sn(2) is bonded in a pentagonal bipyramidal geometry to one C(20), one C(22), one O(10), one O(2), one O(4), one O(5), and one O(7) atom. The Sn(2)-C(20) bond length is 2.13 Å. The Sn(2)-C(22) bond length is 2.13 Å. The Sn(2)-O(10) bond length is 2.26 Å. The Sn(2)-O(2) bond length is 2.31 Å. The Sn(2)-O(4) bond length is 2.41 Å. The Sn(2)-O(5) bond length is 2.35 Å. The Sn(2)-O(7) bond length is 2.53 Å. There are twenty-one inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(1); one N(3,4); and one H(7,8) atom. The C(1)-N(1) bond length is 1.32 Å. The C(1)-N(3,4) bond length is 1.37 Å. The C(1)-H(7,8) bond length is 1.08 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(2); one N(3,4); and one H(7,8) atom. The C(2)-N(2) bond length is 1.32 Å. The C(2)-N(3,4) bond length is 1.37 Å. The C(2)-H(7,8) bond length is 1.08 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(13,14); one C(5); and one N(3,4) atom. The C(3)-C(13,14) bond length is 1.39 Å. The C(3)-C(5) bond length is 1.42 Å. The C(3)-N(3,4) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(13,14); one C(6); and one N(3,4) atom. The C(4)-C(13,14) bond length is 1.39 Å. The C(4)-C(6) bond length is 1.42 Å. The C(4)-N(3,4) bond length is 1.38 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one N(1) atom. The C(5)-C(7) bond length is 1.40 Å. The C(5)-N(1) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(4), one C(8), and one N(2) atom. The C(6)-C(8) bond length is 1.40 Å. The C(6)-N(2) bond length is 1.39 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(5); one C(9); and one H(9,10) atom. The C(7)-C(9) bond length is 1.40 Å. The C(7)-H(9,10) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(10); one C(6); and one H(9,10) atom. The C(8)-C(10) bond length is 1.40 Å. The C(8)-H(9,10) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(7) atom. The C(9)-C(11) bond length is 1.43 Å. The C(9)-C(15) bond length is 1.49 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(12), one C(16), and one C(8) atom. The C(10)-C(12) bond length is 1.42 Å. The C(10)-C(16) bond length is 1.49 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(13,14); one C(17); and one C(9) atom. The C(11)-C(13,14) bond length is 1.40 Å. The C(11)-C(17) bond length is 1.50 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(10); one C(13,14); and one C(18) atom. The C(12)-C(13,14) bond length is 1.40 Å. The C(12)-C(18) bond length is 1.50 Å. In the thirteenth C site, C(13,14) is bonded in a distorted single-bond geometry to one C(11); one C(3); and one H(11,12) atom. The C(13,14)-H(11,12) bond length is 1.09 Å. In the fourteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(1), and one O(3) atom. The C(15)-O(1) bond length is 1.29 Å. The C(15)-O(3) bond length is 1.28 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(2), and one O(4) atom. The C(16)-O(2) bond length is 1.29 Å. The C(16)-O(4) bond length is 1.28 Å. In the sixteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(5), and one O(7) atom. The C(17)-O(5) bond length is 1.28 Å. The C(17)-O(7) bond length is 1.28 Å. In the seventeenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(6), and one O(8) atom. The C(18)-O(6) bond length is 1.28 Å. The C(18)-O(8) bond length is 1.28 Å. In the eighteenth C site, C(19) is bonded in a distorted trigonal non-coplanar geometry to one Sn(1); one H(13,14); one H(15,16); and one H(17,18) atom. The C(19)-H(13,14) bond length is 1.09 Å. The C(19)-H(15,16) bond length is 1.09 Å. The C(19)-H(17,18) bond length is 1.10 Å. In the nineteenth C site, C(20) is bonded in a distorted trigonal non-coplanar geometry to one Sn(2); one H(13,14); one H(15,16); and one H(17,18) atom. The C(20)-H(13,14) bond length is 1.09 Å. The C(20)-H(15,16) bond length is 1.09 Å. The C(20)-H(17,18) bond length is 1.10 Å. In the twentieth C site, C(21) is bonded in a distorted trigonal non-coplanar geometry to one Sn(1); one H(19,20); one H(21,22); and one H(23,24) atom. The C(21)-H(19,20) bond length is 1.09 Å. The C(21)-H(21,22) bond length is 1.10 Å. The C(21)-H(23,24) bond length is 1.09 Å. In the twenty-first C site, C(22) is bonded in a distorted trigonal non-coplanar geometry to one Sn(2); one H(19,20); one H(21,22); and one H(23,24) atom. The C(22)-H(19,20) bond length is 1.09 Å. The C(22)-H(21,22) bond length is 1.10 Å. The C(22)-H(23,24) bond length is 1.09 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one H(4) atom. The N(1)-H(4) bond length is 1.67 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(2), one C(6), and one H(3) atom. The N(2)-H(3) bond length is 1.67 Å. In the third N site, N(3,4) is bonded in a trigonal planar geometry to one C(1); one C(3); and one H(1,2) atom. The N(3,4)-H(1,2) bond length is 1.01 Å. There are fourteen inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one N(3,4) atom. In the second H site, H(3) is bonded in a distorted single-bond geometry to one N(2) and one O(9) atom. The H(3)-O(9) bond length is 1.02 Å. In the third H site, H(4) is bonded in a distorted single-bond geometry to one N(1) and one O(10) atom. The H(4)-O(10) bond length is 1.02 Å. In the fourth H site, H(5) is bonded in a distorted single-bond geometry to one O(8) and one O(9) atom. The H(5)-O(8) bond length is 1.65 Å. The H(5)-O(9) bond length is 1.00 Å. In the fifth H site, H(6) is bonded in a distorted single-bond geometry to one O(10) and one O(7) atom. The H(6)-O(10) bond length is 1.00 Å. The H(6)-O(7) bond length is 1.65 Å. In the sixth H site, H(7,8) is bonded in a single-bond geometry to one C(1) atom. In the seventh H site, H(9,10) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(11,12) is bonded in a single-bond geometry to one C(13,14) atom. In the ninth H site, H(13,14) is bonded in a single-bond geometry to one C(19) atom. In the tenth H site, H(15,16) is bonded in a single-bond geometry to one C(19) atom. In the eleventh H site, H(17,18) is bonded in a single-bond geometry to one C(19) atom. In the twelfth H site, H(19,20) is bonded in a single-bond geometry to one C(21) atom. In the thirteenth H site, H(21,22) is bonded in a single-bond geometry to one C(21) atom. In the fourteenth H site, H(23,24) is bonded in a single-bond geometry to one C(21) atom. There are ten 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(15) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Sn(2) and one C(16) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sn(1) and one C(15) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sn(2) and one C(16) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sn(2) and one C(17) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sn(1) and one C(18) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Sn(2), one C(17), and one H(6) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sn(1), one C(18), and one H(5) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Sn(1), one H(3), and one H(5) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Sn(2), one H(4), and one H(6) atom. Linkers: 4 [O]C(=O)c1cc2nc[nH]c2cc1C([O])=O. Metal clusters: 4 O.O=[C]O[Sn]1O[C]O1. The MOF has largest included sphere 3.37 A, density 1.84 g/cm3, surface area 3693.96 m2/g, accessible volume 0.11 cm3/g