Mn2C20H4(S2O3)3 crystallizes in the monoclinic C2/c space group. Mn(1) is bonded to one O(1), one O(2), one O(5), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing MnO5 square pyramids. The Mn(1)-O(1) bond length is 2.14 Å. The Mn(1)-O(2) bond length is 2.10 Å. The Mn(1)-O(5) bond length is 2.25 Å. There is one shorter (2.23 Å) and one longer (2.27 Å) Mn(1)-O(4) bond length. 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(3), and one O(4) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(3) bond length is 1.24 Å. The C(1)-O(4) bond length is 1.29 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one S(1) atom. The C(2)-C(3) bond length is 1.36 Å. The C(2)-S(1) bond length is 1.74 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(5), and one H(1) atom. The C(3)-C(5) bond length is 1.42 Å. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(5), one C(6), and one S(1) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-C(6) bond length is 1.42 Å. The C(4)-S(1) bond length is 1.71 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(4), and one S(3) atom. The C(5)-S(3) bond length is 1.75 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(4), one C(7), and one S(2) atom. The C(6)-C(7) bond length is 1.37 Å. The C(6)-S(2) bond length is 1.72 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6), one C(8), and one S(3) atom. The C(7)-C(8) bond length is 1.40 Å. The C(7)-S(3) bond length is 1.74 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(2) atom. The C(8)-C(9) bond length is 1.36 Å. The C(8)-H(2) 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(8), and one S(2) atom. The C(9)-C(10) bond length is 1.49 Å. The C(9)-S(2) bond length is 1.73 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(1), and one O(2) atom. The C(10)-O(1) bond length is 1.25 Å. The C(10)-O(2) bond length is 1.25 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(8) atom. There are three inequivalent S sites. In the first S site, S(1) is bonded in an L-shaped geometry to one C(2) and one C(4) atom. In the second S site, S(2) is bonded in an L-shaped geometry to one C(6) and one C(9) atom. In the third S site, S(3) is bonded in an L-shaped geometry to one C(5) and one C(7) atom. There are five 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(10) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(10) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to two equivalent Mn(1) atoms. Linkers: 4 [O]C(=O)c1cc2sc3cc(C([O])=O)sc3c2s1. Metal clusters: 4 [Mn]. RCSR code: umc. The MOF has largest included sphere 5.85 A, density 1.36 g/cm3, surface area 3483.16 m2/g, accessible volume 0.29 cm3/g