Sm2C9NH9O16(CH)2 crystallizes in the triclinic P-1 space group. The structure consists of four 02329_fluka molecules inside a Sm2C9NH9O16 framework. In the Sm2C9NH9O16 framework, there are two 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(13), one O(14), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. The Sm(1)-N(1) bond length is 2.59 Å. The Sm(1)-O(1) bond length is 2.45 Å. The Sm(1)-O(13) bond length is 2.46 Å. The Sm(1)-O(14) bond length is 2.46 Å. The Sm(1)-O(3) bond length is 2.47 Å. The Sm(1)-O(5) bond length is 2.49 Å. The Sm(1)-O(6) bond length is 2.45 Å. The Sm(1)-O(7) bond length is 2.58 Å. The Sm(1)-O(9) bond length is 2.42 Å. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(15), one O(16), one O(2), one O(4), and one O(8) atom. The Sm(2)-O(10) bond length is 2.40 Å. The Sm(2)-O(11) bond length is 2.41 Å. The Sm(2)-O(12) bond length is 2.48 Å. The Sm(2)-O(15) bond length is 2.41 Å. The Sm(2)-O(16) bond length is 2.52 Å. The Sm(2)-O(2) bond length is 2.43 Å. The Sm(2)-O(4) bond length is 2.31 Å. The Sm(2)-O(8) bond length is 2.47 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(6), and one N(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.50 Å. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(9) atom. The C(2)-H(9) bond length is 1.09 Å. In the third C site, C(5) is bonded in a distorted single-bond geometry to one N(1) atom. The C(5)-N(1) bond length is 1.34 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(6)-O(1) bond length is 1.29 Å. The C(6)-O(2) bond length is 1.26 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(7)-O(3) bond length is 1.27 Å. The C(7)-O(4) bond length is 1.26 Å. In the sixth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(8)-O(5) bond length is 1.27 Å. The C(8)-O(6) bond length is 1.26 Å. In the seventh C site, C(9) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. The C(9)-O(11) bond length is 1.28 Å. The C(9)-O(12) bond length is 1.25 Å. In the eighth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. The C(10)-O(7) bond length is 1.28 Å. The C(10)-O(8) bond length is 1.26 Å. In the ninth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(9) atom. The C(11)-O(10) bond length is 1.27 Å. The C(11)-O(9) bond length is 1.26 Å. N(1) is bonded in a distorted trigonal planar geometry to one Sm(1), one C(1), and one C(5) atom. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(13) atom. The H(1)-O(13) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(13) atom. The H(2)-O(13) bond length is 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(14) atom. The H(3)-O(14) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(14) and one O(3) atom. The H(4)-O(14) bond length is 1.00 Å. The H(4)-O(3) bond length is 1.75 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(15) atom. The H(5)-O(15) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(1) and one O(15) atom. The H(6)-O(1) bond length is 1.62 Å. The H(6)-O(15) bond length is 1.01 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(16) atom. The H(7)-O(16) bond length is 0.98 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(11) and one O(16) atom. The H(8)-O(11) bond length is 1.71 Å. The H(8)-O(16) bond length is 1.00 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(2) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Sm(1), one C(6), and one H(6) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sm(1), one C(7), and one H(4) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Sm(2) and one C(7) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(8) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Sm(1) and one C(10) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(10) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(11) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Sm(2) and one C(11) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Sm(2), one C(9), and one H(8) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sm(2) and one C(9) atom. In the thirteenth O site, O(13) is bonded in a distorted water-like geometry to one Sm(1), one H(1), and one H(2) atom. In the fourteenth O site, O(14) is bonded in a distorted water-like geometry to one Sm(1), one H(3), and one H(4) atom. In the fifteenth O site, O(15) is bonded in a distorted water-like geometry to one Sm(2), one H(5), and one H(6) atom. In the sixteenth O site, O(16) is bonded in a water-like geometry to one Sm(2), one H(7), and one H(8) atom. Linkers: 4 [O]C(=O)C([O])=O. Metal clusters: 4 [Sm]. The MOF has largest included sphere 3.10 A, density 2.40 g/cm3, surface area 2659.44 m2/g, accessible volume 0.10 cm3/g