Mn3C16H12(NO8)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one N(1), one O(3), one O(4), one O(5), one O(7), and two equivalent O(1) atoms to form distorted edge-sharing MnNO6 pentagonal bipyramids. The Mn(1)-N(1) bond length is 2.27 Å. The Mn(1)-O(3) bond length is 2.25 Å. The Mn(1)-O(4) bond length is 2.18 Å. The Mn(1)-O(5) bond length is 2.33 Å. The Mn(1)-O(7) bond length is 2.24 Å. There is one shorter (2.28 Å) and one longer (2.56 Å) Mn(1)-O(1) bond length. In the second Mn site, Mn(2) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(6), and two equivalent O(8) atoms. Both Mn(2)-O(2) bond lengths are 2.29 Å. Both Mn(2)-O(6) bond lengths are 2.12 Å. Both Mn(2)-O(8) bond lengths are 2.10 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 C(4), and one N(1) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-C(4) bond length is 1.39 Å. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(2)-O(1) bond length is 1.27 Å. The C(2)-O(2) bond length is 1.27 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(5), and one O(8) atom. The C(3)-C(8) bond length is 1.50 Å. The C(3)-O(5) bond length is 1.28 Å. The C(3)-O(8) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(1), one C(7), and one H(1) atom. The C(4)-C(7) bond length is 1.40 Å. The C(4)-H(1) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(7), one C(8), and one H(2) atom. The C(5)-C(7) bond length is 1.39 Å. The C(5)-C(8) bond length is 1.39 Å. The C(5)-H(2) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(4), and one O(7) atom. The C(6)-C(7) bond length is 1.50 Å. The C(6)-O(4) bond length is 1.26 Å. The C(6)-O(7) bond length is 1.28 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(6) atom. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(1) atom. The C(8)-N(1) bond length is 1.35 Å. N(1) is bonded in a trigonal planar geometry to one Mn(1), one C(1), and one C(8) atom. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(6) atom. The H(3)-O(6) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(6) and one O(7) atom. The H(4)-O(6) bond length is 1.00 Å. The H(4)-O(7) bond length is 1.72 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) and one O(5) atom. The H(5)-O(3) bond length is 1.00 Å. The H(5)-O(5) bond length is 1.71 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(2) and one O(3) atom. The H(6)-O(2) bond length is 1.63 Å. The H(6)-O(3) bond length is 1.01 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Mn(1) and one C(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(2), one C(2), and one H(6) atom. In the third O site, O(3) is bonded in a water-like geometry to one Mn(1), one H(5), and one H(6) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Mn(1), one C(3), and one H(5) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mn(2), one H(3), and one H(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Mn(1), one C(6), and one H(4) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mn(2) and one C(3) atom. Linkers: 2 [O]C(=O)c1cc(C([O])=O)nc(C([O])=O)c1. Metal clusters: 3 [Mn]. The MOF has largest included sphere 2.00 A, density 2.26 g/cm3, surface area 2192.54 m2/g, accessible volume 0.04 cm3/g