Sm2C16N2H10O15 crystallizes in the triclinic P-1 space group. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to one N(1), one O(1), one O(17), one O(25), one O(27), one O(29), one O(3), one O(5), and one O(7) atom. The Sm(1)-N(1) bond length is 2.56 Å. The Sm(1)-O(1) bond length is 2.44 Å. The Sm(1)-O(17) bond length is 2.45 Å. The Sm(1)-O(25) bond length is 2.43 Å. The Sm(1)-O(27) bond length is 2.62 Å. The Sm(1)-O(29) bond length is 2.56 Å. The Sm(1)-O(3) bond length is 2.53 Å. The Sm(1)-O(5) bond length is 2.47 Å. The Sm(1)-O(7) bond length is 2.43 Å. In the second Sm site, Sm(2) is bonded in a 9-coordinate geometry to one N(2), one O(18), one O(2), one O(26), one O(28), one O(30), one O(4), one O(6), and one O(8) atom. The Sm(2)-N(2) bond length is 2.56 Å. The Sm(2)-O(18) bond length is 2.45 Å. The Sm(2)-O(2) bond length is 2.44 Å. The Sm(2)-O(26) bond length is 2.43 Å. The Sm(2)-O(28) bond length is 2.62 Å. The Sm(2)-O(30) bond length is 2.56 Å. The Sm(2)-O(4) bond length is 2.53 Å. The Sm(2)-O(6) bond length is 2.47 Å. The Sm(2)-O(8) bond length is 2.43 Å. In the third Sm site, Sm(3) is bonded in a 8-coordinate geometry to one N(4), one O(12), one O(16), one O(20), one O(21), one O(24), one O(30), and one O(9) atom. The Sm(3)-N(4) bond length is 2.57 Å. The Sm(3)-O(12) bond length is 2.40 Å. The Sm(3)-O(16) bond length is 2.41 Å. The Sm(3)-O(20) bond length is 2.44 Å. The Sm(3)-O(21) bond length is 2.33 Å. The Sm(3)-O(24) bond length is 2.42 Å. The Sm(3)-O(30) bond length is 2.45 Å. The Sm(3)-O(9) bond length is 2.33 Å. In the fourth Sm site, Sm(4) is bonded in a 8-coordinate geometry to one N(3), one O(10), one O(11), one O(15), one O(19), one O(22), one O(23), and one O(29) atom. The Sm(4)-N(3) bond length is 2.56 Å. The Sm(4)-O(10) bond length is 2.33 Å. The Sm(4)-O(11) bond length is 2.40 Å. The Sm(4)-O(15) bond length is 2.41 Å. The Sm(4)-O(19) bond length is 2.44 Å. The Sm(4)-O(22) bond length is 2.33 Å. The Sm(4)-O(23) bond length is 2.42 Å. The Sm(4)-O(29) bond length is 2.45 Å. There are twenty-nine inequivalent C sites. In the first C site, C(1,2) is bonded in a distorted single-bond geometry to one C(3) and one N(1) atom. The C(1,2)-C(3) bond length is 1.40 Å. The C(1,2)-N(1) bond length is 1.34 Å. In the second C site, C(3) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(5); and one H(13,14) atom. The C(3)-C(5) bond length is 1.40 Å. The C(3)-H(13,14) bond length is 1.09 Å. In the third C site, C(4) is bonded in a distorted trigonal planar geometry to one C(1,2); one C(6); and one H(13,14) atom. The C(4)-C(1,2) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.40 Å. The C(4)-H(13,14) bond length is 1.09 Å. In the fourth C site, C(5) is bonded in a trigonal planar geometry to one C(13), one C(3), and one C(7) atom. The C(5)-C(13) bond length is 1.51 Å. The C(5)-C(7) bond length is 1.40 Å. In the fifth C site, C(6) is bonded in a trigonal planar geometry to one C(14), one C(4), and one C(8) atom. The C(6)-C(14) bond length is 1.51 Å. The C(6)-C(8) bond length is 1.40 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(5); one C(9); and one H(15,16) atom. The C(7)-C(9) bond length is 1.39 Å. The C(7)-H(15,16) bond length is 1.09 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(10); one C(6); and one H(15,16) atom. The C(8)-C(10) bond length is 1.39 Å. The C(8)-H(15,16) bond length is 1.09 Å. In the eighth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(15), one C(7), and one N(1) atom. The C(9)-C(15) bond length is 1.51 Å. The C(9)-N(1) bond length is 1.34 Å. In the ninth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(16), one C(8), and one N(2) atom. The C(10)-C(16) bond length is 1.51 Å. The C(10)-N(2) bond length is 1.34 Å. In the tenth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(9) atom. The C(11)-O(7) bond length is 1.27 Å. The C(11)-O(9) bond length is 1.26 Å. In the eleventh C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(8) atom. The C(12)-O(10) bond length is 1.26 Å. The C(12)-O(8) bond length is 1.27 Å. In the twelfth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(11), and one O(13) atom. The C(13)-O(11) bond length is 1.25 Å. The C(13)-O(13) bond length is 1.29 Å. In the thirteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(12), and one O(14) atom. The C(14)-O(12) bond length is 1.25 Å. The C(14)-O(14) bond length is 1.29 Å. In the fourteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(15), and one O(17) atom. The C(15)-O(15) bond length is 1.26 Å. The C(15)-O(17) bond length is 1.27 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(16), and one O(18) atom. The C(16)-O(16) bond length is 1.26 Å. The C(16)-O(18) bond length is 1.27 Å. In the sixteenth C site, C(17,18) is bonded in a distorted single-bond geometry to one N(3) atom. The C(17,18)-N(3) bond length is 1.34 Å. In the seventeenth C site, C(19) is bonded in a distorted single-bond geometry to one C(21) and one H(17,18) atom. The C(19)-C(21) bond length is 1.40 Å. The C(19)-H(17,18) bond length is 1.09 Å. In the eighteenth C site, C(20) is bonded in a distorted single-bond geometry to one C(22) and one H(17,18) atom. The C(20)-C(22) bond length is 1.40 Å. The C(20)-H(17,18) bond length is 1.09 Å. In the nineteenth C site, C(21) is bonded in a trigonal planar geometry to one C(19), one C(23), and one C(29) atom. The C(21)-C(23) bond length is 1.40 Å. The C(21)-C(29) bond length is 1.51 Å. In the twentieth C site, C(22) is bonded in a trigonal planar geometry to one C(20), one C(24), and one C(30) atom. The C(22)-C(24) bond length is 1.40 Å. The C(22)-C(30) bond length is 1.51 Å. In the twenty-first C site, C(23) is bonded in a distorted single-bond geometry to one C(21); one C(25); and one H(19,20) atom. The C(23)-C(25) bond length is 1.39 Å. The C(23)-H(19,20) bond length is 1.09 Å. In the twenty-second C site, C(24) is bonded in a distorted single-bond geometry to one C(22); one C(26); and one H(19,20) atom. The C(24)-C(26) bond length is 1.39 Å. The C(24)-H(19,20) bond length is 1.09 Å. In the twenty-third C site, C(25) is bonded in a distorted single-bond geometry to one C(23), one C(31), and one N(3) atom. The C(25)-C(31) bond length is 1.50 Å. The C(25)-N(3) bond length is 1.34 Å. In the twenty-fourth C site, C(26) is bonded in a distorted single-bond geometry to one C(24), one C(32), and one N(4) atom. The C(26)-C(32) bond length is 1.50 Å. The C(26)-N(4) bond length is 1.34 Å. In the twenty-fifth C site, C(27,28) is bonded in a distorted bent 120 degrees geometry to one O(19) and one O(21) atom. The C(27,28)-O(19) bond length is 1.27 Å. The C(27,28)-O(21) bond length is 1.26 Å. In the twenty-sixth C site, C(29) is bonded in a distorted bent 120 degrees geometry to one C(21), one O(23), and one O(25) atom. The C(29)-O(23) bond length is 1.26 Å. The C(29)-O(25) bond length is 1.28 Å. In the twenty-seventh C site, C(30) is bonded in a distorted bent 120 degrees geometry to one C(22), one O(24), and one O(26) atom. The C(30)-O(24) bond length is 1.26 Å. The C(30)-O(26) bond length is 1.28 Å. In the twenty-eighth C site, C(31) is bonded in a bent 120 degrees geometry to one C(25), one O(27), and one O(29) atom. The C(31)-O(27) bond length is 1.27 Å. The C(31)-O(29) bond length is 1.28 Å. In the twenty-ninth C site, C(32) is bonded in a bent 120 degrees geometry to one C(26), one O(28), and one O(30) atom. The C(32)-O(28) bond length is 1.27 Å. The C(32)-O(30) bond length is 1.28 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Sm(1); one C(1,2); and one C(9) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Sm(2); one C(1,2); and one C(10) atom. The N(2)-C(1,2) bond length is 1.34 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Sm(4); one C(17,18); and one C(25) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Sm(3); one C(17,18); and one C(26) atom. The N(4)-C(17,18) bond length is 1.34 Å. There are sixteen inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(27) atom. The H(1)-O(1) bond length is 1.00 Å. The H(1)-O(27) bond length is 1.67 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(2) and one O(28) atom. The H(2)-O(2) bond length is 1.00 Å. The H(2)-O(28) bond length is 1.67 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(1) atom. The H(3)-O(1) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) atom. The H(4)-O(2) bond length is 0.99 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) atom. The H(5)-O(3) bond length is 0.97 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(4) atom. The H(6)-O(4) bond length is 0.97 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(3) atom. The H(7)-O(3) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(4) atom. The H(8)-O(4) bond length is 0.99 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(5) atom. The H(9)-O(5) bond length is 0.98 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(6) atom. The H(10)-O(6) bond length is 0.98 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(5) atom. The H(11)-O(5) bond length is 0.99 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one O(6) atom. The H(12)-O(6) bond length is 0.99 Å. In the thirteenth H site, H(13,14) is bonded in a single-bond geometry to one C(3) atom. In the fourteenth H site, H(15,16) is bonded in a single-bond geometry to one C(7) atom. In the fifteenth H site, H(17,18) is bonded in a single-bond geometry to one C(19) atom. In the sixteenth H site, H(19,20) is bonded in a single-bond geometry to one C(23) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Sm(1), one H(1), and one H(3) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Sm(2), one H(2), and one H(4) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Sm(1), one H(5), and one H(7) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Sm(2), one H(6), and one H(8) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Sm(1), one H(11), and one H(9) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Sm(2), one H(10), and one H(12) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(11) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(12) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Sm(3) and one C(11) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Sm(4) and one C(12) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Sm(4) and one C(13) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Sm(3) and one C(14) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one C(13) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one C(14) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Sm(4) and one C(15) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Sm(3) and one C(16) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(15) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(16) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 120 degrees geometry to one Sm(4) and one C(27,28) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Sm(3) and one C(27,28) atom. The O(20)-C(27,28) bond length is 1.27 Å. In the twenty-first O site, O(21) is bonded in a distorted linear geometry to one Sm(3) and one C(27,28) atom. In the twenty-second O site, O(22) is bonded in a distorted linear geometry to one Sm(4) and one C(27,28) atom. The O(22)-C(27,28) bond length is 1.26 Å. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Sm(4) and one C(29) atom. In the twenty-fourth O site, O(24) is bonded in a distorted bent 150 degrees geometry to one Sm(3) and one C(30) atom. In the twenty-fifth O site, O(25) is bonded in a distorted bent 150 degrees geometry to one Sm(1) and one C(29) atom. In the twenty-sixth O site, O(26) is bonded in a distorted bent 150 degrees geometry to one Sm(2) and one C(30) atom. In the twenty-seventh O site, O(27) is bonded in a 3-coordinate geometry to one Sm(1), one C(31), and one H(1) atom. In the twenty-eighth O site, O(28) is bonded in a 3-coordinate geometry to one Sm(2), one C(32), and one H(2) atom. In the twenty-ninth O site, O(29) is bonded in a distorted single-bond geometry to one Sm(1), one Sm(4), and one C(31) atom. In the thirtieth O site, O(30) is bonded in a distorted single-bond geometry to one Sm(2), one Sm(3), and one C(32) atom. Linkers: 8 [O]C(=O)c1cc(C([O])=O)nc(C([O])=O)c1. Metal clusters: 8 [Sm]. The MOF has largest included sphere 3.47 A, density 2.26 g/cm3, surface area 2450.71 m2/g, accessible volume 0.12 cm3/g