MnC8NH7O8 crystallizes in the triclinic P-1 space group. Mn(1) is bonded to one O(1), one O(2), one O(7), one O(8), and two equivalent O(4) atoms to form edge-sharing MnO6 octahedra. The Mn(1)-O(1) bond length is 2.09 Å. The Mn(1)-O(2) bond length is 2.13 Å. The Mn(1)-O(7) bond length is 2.14 Å. The Mn(1)-O(8) bond length is 2.17 Å. Both Mn(1)-O(4) bond lengths are 2.24 Å. There are 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(2) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) 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(3), and one C(7) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-C(7) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one N(1) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-N(1) bond length is 1.45 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(1) atom. The C(4)-C(5) 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 trigonal planar geometry to one C(4), one C(6), and one C(8) atom. The C(5)-C(6) bond length is 1.41 Å. The C(5)-C(8) bond length is 1.49 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(7)-H(3) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.27 Å. The C(8)-O(4) bond length is 1.29 Å. N(1) is bonded in a trigonal planar geometry to one C(3), one O(5), and one O(6) atom. The N(1)-O(5) bond length is 1.26 Å. The N(1)-O(6) bond length is 1.24 Å. There are seven 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(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(5) and one O(7) atom. The H(4)-O(5) bond length is 1.72 Å. The H(4)-O(7) bond length is 0.99 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(7) atom. The H(5)-O(7) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(8) atom. The H(6)-O(8) bond length is 1.00 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(8) atom. The H(7)-O(8) bond length is 0.99 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one N(1) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Mn(1), one H(4), and one H(5) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Mn(1), one H(6), and one H(7) atom. Linkers: 2 [O]C(=O)c1ccc(C([O])=O)c([N+](=O)[O-])c1. Metal clusters: 2 [Mn]. RCSR code: sql. The MOF has largest included sphere 1.42 A, density 2.06 g/cm3, surface area 3124.19 m2/g, accessible volume 0.10 cm3/g