SmC14H12(NO4)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(15), one O(4), one O(6), one O(7), and one O(9) atom. The Sm(1)-O(10) bond length is 2.44 Å. The Sm(1)-O(11) bond length is 2.41 Å. The Sm(1)-O(12) bond length is 2.52 Å. The Sm(1)-O(15) bond length is 2.28 Å. The Sm(1)-O(4) bond length is 2.29 Å. The Sm(1)-O(6) bond length is 2.45 Å. The Sm(1)-O(7) bond length is 2.55 Å. The Sm(1)-O(9) bond length is 2.55 Å. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), one O(13), one O(16), one O(2), one O(3), one O(5), and one O(8) atom. The Sm(2)-O(1) bond length is 2.29 Å. The Sm(2)-O(13) bond length is 2.33 Å. The Sm(2)-O(16) bond length is 2.39 Å. The Sm(2)-O(2) bond length is 2.34 Å. The Sm(2)-O(3) bond length is 2.37 Å. The Sm(2)-O(5) bond length is 2.53 Å. The Sm(2)-O(8) bond length is 2.49 Å. There are twenty-eight 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(1), and one O(14) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(14) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(16), and one C(17) atom. The C(2)-C(16) bond length is 1.40 Å. The C(2)-C(17) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(2), and one O(3) atom. The C(3)-C(7) bond length is 1.51 Å. The C(3)-O(2) bond length is 1.27 Å. The C(3)-O(3) bond length is 1.26 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(4), and one O(5) atom. The C(4)-C(5) bond length is 1.50 Å. The C(4)-O(4) bond length is 1.28 Å. The C(4)-O(5) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(22), one C(4), and one C(6) atom. The C(5)-C(22) bond length is 1.40 Å. The C(5)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5), one C(7), and one H(1) atom. The C(6)-C(7) bond length is 1.41 Å. The C(6)-H(1) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(25), one C(3), and one C(6) atom. The C(7)-C(25) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a bent 120 degrees geometry to one C(9), one O(6), and one O(7) atom. The C(8)-C(9) bond length is 1.49 Å. The C(8)-O(6) bond length is 1.29 Å. The C(8)-O(7) bond length is 1.27 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(8) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-C(11) bond length is 1.40 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(21), one C(9), and one H(2) atom. The C(10)-C(21) bond length is 1.40 Å. The C(10)-H(2) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(18), one C(9), and one H(3) atom. The C(11)-C(18) bond length is 1.40 Å. The C(11)-H(3) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded to one N(4), one H(4), one H(5), and one H(6) atom to form corner-sharing CH3N tetrahedra. The C(12)-N(4) bond length is 1.46 Å. The C(12)-H(4) bond length is 1.09 Å. The C(12)-H(5) bond length is 1.10 Å. The C(12)-H(6) bond length is 1.10 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(14), one C(17), and one C(24) atom. The C(13)-C(14) bond length is 1.50 Å. The C(13)-C(17) bond length is 1.40 Å. The C(13)-C(24) bond length is 1.40 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(11), and one O(13) atom. The C(14)-O(11) bond length is 1.28 Å. The C(14)-O(13) bond length is 1.26 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(18), one C(21), and one H(13) atom. The C(15)-C(18) bond length is 1.39 Å. The C(15)-C(21) bond length is 1.40 Å. The C(15)-H(13) bond length is 1.08 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(2), one C(23), and one H(14) atom. The C(16)-C(23) bond length is 1.40 Å. The C(16)-H(14) bond length is 1.09 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(13), one C(2), and one H(15) atom. The C(17)-H(15) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(20) atom. The C(18)-C(20) bond length is 1.50 Å. In the nineteenth C site, C(19) is bonded in a distorted trigonal planar geometry to one C(22), one C(25), and one N(3) atom. The C(19)-C(22) bond length is 1.40 Å. The C(19)-C(25) bond length is 1.41 Å. The C(19)-N(3) bond length is 1.42 Å. In the twentieth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one C(18), one O(15), and one O(8) atom. The C(20)-O(15) bond length is 1.28 Å. The C(20)-O(8) bond length is 1.26 Å. In the twenty-first C site, C(21) is bonded in a distorted trigonal planar geometry to one C(10), one C(15), and one N(2) atom. The C(21)-N(2) bond length is 1.42 Å. In the twenty-second C site, C(22) is bonded in a distorted single-bond geometry to one C(19), one C(5), and one H(16) atom. The C(22)-H(16) bond length is 1.09 Å. In the twenty-third C site, C(23) is bonded in a distorted trigonal planar geometry to one C(16), one C(24), and one N(1) atom. The C(23)-C(24) bond length is 1.40 Å. The C(23)-N(1) bond length is 1.41 Å. In the twenty-fourth C site, C(24) is bonded in a distorted single-bond geometry to one C(13), one C(23), and one H(17) atom. The C(24)-H(17) bond length is 1.09 Å. In the twenty-fifth C site, C(25) is bonded in a distorted single-bond geometry to one C(19), one C(7), and one H(18) atom. The C(25)-H(18) bond length is 1.09 Å. In the twenty-sixth C site, C(26) is bonded in a trigonal non-coplanar geometry to one C(27), one H(19), one H(20), and one H(21) atom. The C(26)-C(27) bond length is 1.51 Å. The C(26)-H(19) bond length is 1.10 Å. The C(26)-H(20) bond length is 1.09 Å. The C(26)-H(21) bond length is 1.10 Å. In the twenty-seventh C site, C(27) is bonded in a distorted trigonal planar geometry to one C(26), one N(4), and one O(16) atom. The C(27)-N(4) bond length is 1.35 Å. The C(27)-O(16) bond length is 1.26 Å. In the twenty-eighth C site, C(28) is bonded to one N(4), one H(22), one H(23), and one H(24) atom to form corner-sharing CH3N tetrahedra. The C(28)-N(4) bond length is 1.46 Å. The C(28)-H(22) bond length is 1.10 Å. The C(28)-H(23) bond length is 1.09 Å. The C(28)-H(24) bond length is 1.10 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 120 degrees geometry to one C(23) and one N(1) atom. The N(1)-N(1) bond length is 1.26 Å. In the second N site, N(2) is bonded in a distorted bent 120 degrees geometry to one C(21) and one N(3) atom. The N(2)-N(3) bond length is 1.27 Å. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to one C(19) and one N(2) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(12), one C(27), and one C(28) atom. There are twenty-four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(6) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(10) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(11) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(12) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(12) 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 O(9) atom. The H(7)-O(9) bond length is 0.98 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(9) atom. The H(8)-O(9) bond length is 1.00 Å. In the ninth H site, H(9) is bonded in a distorted linear geometry to one O(10) and one O(14) atom. The H(9)-O(10) bond length is 1.05 Å. The H(9)-O(14) bond length is 1.49 Å. In the tenth H site, H(10) is bonded in a distorted single-bond geometry to one O(10) and one O(6) atom. The H(10)-O(10) bond length is 1.00 Å. The H(10)-O(6) bond length is 1.64 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(12) atom. The H(11)-O(12) bond length is 0.97 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one O(12) atom. The H(12)-O(12) bond length is 0.98 Å. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(15) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(16) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(17) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(22) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(24) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(25) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one C(26) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(26) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one C(26) atom. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one C(28) atom. In the twenty-third H site, H(23) is bonded in a single-bond geometry to one C(28) atom. In the twenty-fourth H site, H(24) is bonded in a single-bond geometry to one C(28) atom. There are sixteen inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Sm(1) and one C(8) atom. In the second O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(20) atom. In the third O site, O(9) is bonded in a distorted water-like geometry to one Sm(1), one H(7), and one H(8) atom. In the fourth O site, O(10) is bonded in a water-like geometry to one Sm(1), one H(10), and one H(9) atom. In the fifth O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(14) atom. In the sixth O site, O(12) is bonded in a distorted water-like geometry to one Sm(1), one H(11), and one H(12) atom. In the seventh O site, O(13) is bonded in a distorted linear geometry to one Sm(2) and one C(14) atom. In the eighth O site, O(14) is bonded in a bent 120 degrees geometry to one C(1) and one H(9) atom. In the ninth O site, O(15) is bonded in a linear geometry to one Sm(1) and one C(20) atom. In the tenth O site, O(16) is bonded in a distorted bent 150 degrees geometry to one Sm(2) and one C(27) atom. In the eleventh O site, O(1) is bonded in a distorted linear geometry to one Sm(2) and one C(1) atom. In the twelfth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sm(2) and one C(3) atom. In the thirteenth O site, O(3) is bonded in a distorted single-bond geometry to one Sm(2) and one C(3) atom. In the fourteenth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sm(1) and one C(4) atom. In the fifteenth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(2) and one C(4) atom. In the sixteenth O site, O(6) is bonded in a 3-coordinate geometry to one Sm(1), one C(8), and one H(10) atom. Linkers: 3 [O]C(=O)c1cc([N][N]c2cc(C([O])=O)cc(C([O])=O)c2)cc(C([O])=O)c1. Metal clusters: 4 [Sm]. The MOF has largest included sphere 4.50 A, density 1.75 g/cm3, surface area 3395.44 m2/g, accessible volume 0.18 cm3/g