NaMnC15H9(NO3)3(CH)3 crystallizes in the trigonal R3c space group. The structure consists of eighteen 02329_fluka molecules inside a NaMnC15H9(NO3)3 framework. In the NaMnC15H9(NO3)3 framework, Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(3) atoms. All Na(1)-O(1) bond lengths are 2.44 Å. All Na(1)-O(3) bond lengths are 2.30 Å. Mn(1) is bonded in a distorted octahedral geometry to three equivalent O(1) and three equivalent O(2) atoms. All Mn(1)-O(1) bond lengths are 2.17 Å. All Mn(1)-O(2) bond lengths are 2.10 Å. There are five inequivalent C sites. In the first C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(3) bond length is 1.09 Å. In the second C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(6) atom. The C(5)-C(1) bond length is 1.44 Å. The C(5)-C(6) bond length is 1.50 Å. In the third C site, C(6) is bonded in a bent 120 degrees geometry to one C(5), one O(2), and one O(3) atom. The C(6)-O(2) bond length is 1.29 Å. The C(6)-O(3) bond length is 1.26 Å. In the fourth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(1), and one O(1) atom. The C(1)-N(1) bond length is 1.39 Å. The C(1)-O(1) bond length is 1.27 Å. In the fifth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(2)-N(1) bond length is 1.35 Å. The C(2)-H(1) bond length is 1.09 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(2), and one H(4) atom. The N(1)-H(4) bond length is 1.04 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(4) is bonded in a single-bond geometry to one N(1) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one C(1) atom. In the second O site, O(3) is bonded in a distorted linear geometry to one Na(1) and one C(6) atom. In the third O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one C(6) atom. Linkers: 6 [O]C(=O)c1ccc[nH]c1=O. Metal clusters: 2 [Na] ,2 [Mn]. The MOF has largest included sphere 4.57 A, density 1.48 g/cm3, surface area 3618.52 m2/g, accessible volume 0.20 cm3/g