Mn3C16H4(NO2)4(CH)4(CHO)2 crystallizes in the trigonal R-3 space group. The structure consists of thirty-six 02329_fluka molecules and eighteen methanol molecules inside a Mn3C16H4(NO2)4 framework. In the Mn3C16H4(NO2)4 framework, there are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted see-saw-like geometry to one N(1), one N(2), one O(1), and one O(5) atom. The Mn(1)-N(1) bond length is 2.21 Å. The Mn(1)-N(2) bond length is 2.21 Å. The Mn(1)-O(1) bond length is 2.17 Å. The Mn(1)-O(5) bond length is 2.15 Å. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Mn(2)-O(2) bond lengths are 2.08 Å. Both Mn(2)-O(3) bond lengths are 2.09 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one N(2) atom. The C(1)-C(2) bond length is 1.48 Å. The C(1)-N(1) bond length is 1.35 Å. The C(1)-N(2) bond length is 1.34 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(6), and one C(9) atom. The C(2)-C(6) bond length is 1.40 Å. The C(2)-C(9) bond length is 1.38 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(1), and one O(2) atom. The C(3)-C(4) bond length is 1.48 Å. The C(3)-O(1) bond length is 1.26 Å. The C(3)-O(2) bond length is 1.25 Å. In the fourth C site, C(4) is bonded in a 3-coordinate geometry to one C(10), one C(3), and one N(1) atom. The C(4)-C(10) bond length is 1.39 Å. The C(4)-N(1) bond length is 1.38 Å. In the fifth C site, C(6) is bonded in a single-bond geometry to one C(2) and one H(2,4) atom. The C(6)-H(2,4) bond length is 0.93 Å. In the sixth C site, C(9) is bonded in a distorted single-bond geometry to one C(2) and one H(2,4) atom. The C(9)-H(2,4) bond length is 0.93 Å. In the seventh C site, C(10) is bonded in a distorted single-bond geometry to one C(11), one C(4), and one N(2) atom. The C(10)-C(11) bond length is 1.48 Å. The C(10)-N(2) bond length is 1.38 Å. In the eighth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(3), and one O(5) atom. The C(11)-O(3) bond length is 1.24 Å. The C(11)-O(5) bond length is 1.27 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one C(1), and one C(10) atom. In the second N site, N(1) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one C(1), and one C(4) atom. H(2,4) is bonded in a single-bond geometry to one C(6) atom. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(3) atom. In the second O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one C(11) atom. In the third O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(11) atom. In the fourth O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(3) atom. Linkers: 17 [O]C(=O)[C]1N=C(c2cccc(O)c2)N=C1C([O])=O ,1 [O]C(=O)C1=C(C([O])=O)N=C(c2cccc(O)c2)[N]1. Metal clusters: 27 [Mn]. The MOF has largest included sphere 6.22 A, density 1.22 g/cm3, surface area 4121.90 m2/g, accessible volume 0.43 cm3/g