MnC10N3H5O4 crystallizes in the monoclinic Cc space group. Mn(1) is bonded in a square pyramidal geometry to one N(1), one N(3), one O(1), one O(2), and one O(3) atom. The Mn(1)-N(1) bond length is 2.44 Å. The Mn(1)-N(3) bond length is 2.30 Å. The Mn(1)-O(1) bond length is 2.18 Å. The Mn(1)-O(2) bond length is 2.22 Å. The Mn(1)-O(3) bond length is 2.13 Å. There are ten 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 1.26 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(4), and one N(1) atom. The C(2)-C(4) bond length is 1.41 Å. The C(2)-N(1) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(3)-C(4) bond length is 1.52 Å. The C(3)-O(3) bond length is 1.26 Å. The C(3)-O(4) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(2), one C(3), and one N(2) atom. The C(4)-N(2) bond length is 1.38 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(6), one C(9), and one H(1) atom. The C(5)-C(6) bond length is 1.41 Å. The C(5)-C(9) bond length is 1.41 Å. The C(5)-H(1) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one N(3), and one H(2) atom. The C(6)-N(3) bond length is 1.35 Å. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(8), one N(3), and one H(3) atom. The C(7)-C(8) bond length is 1.38 Å. The C(7)-N(3) bond length is 1.36 Å. The C(7)-H(3) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(7), one C(9), and one H(4) atom. The C(8)-C(9) bond length is 1.41 Å. The C(8)-H(4) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(5), and one C(8) atom. The C(9)-C(10) bond length is 1.49 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(9), one N(1), and one N(2) atom. The C(10)-N(1) bond length is 1.33 Å. The C(10)-N(2) bond length is 1.38 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted water-like geometry to one Mn(1), one C(10), and one C(2) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(10), one C(4), and one H(5) atom. The N(2)-H(5) bond length is 0.86 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one Mn(1), one C(6), and one C(7) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) 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 C(8) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(3) atom. Linkers: 2 [O]C(=O)c1nc(-c2ccncc2)[nH]c1C([O])=O. Metal clusters: 2 [Mn]. The MOF has largest included sphere 3.89 A, density 1.46 g/cm3, surface area 3726.88 m2/g, accessible volume 0.25 cm3/g