Mn2C20N4H14O9(C3H2O2)2 crystallizes in the triclinic P-1 space group. The structure consists of four dimethoxymethane molecules inside a Mn2C20N4H14O9 framework. In the Mn2C20N4H14O9 framework, there are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one N(1), one N(3), one O(10), one O(12), one O(4), and one O(9) atom to form corner-sharing MnN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Mn(1)-N(1) bond length is 2.21 Å. The Mn(1)-N(3) bond length is 2.30 Å. The Mn(1)-O(10) bond length is 2.21 Å. The Mn(1)-O(12) bond length is 2.16 Å. The Mn(1)-O(4) bond length is 2.16 Å. The Mn(1)-O(9) bond length is 2.21 Å. In the second Mn site, Mn(2) is bonded to one N(2), one N(4), one O(10), one O(3), one O(6), and one O(8) atom to form corner-sharing MnN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Mn(2)-N(2) bond length is 2.22 Å. The Mn(2)-N(4) bond length is 2.34 Å. The Mn(2)-O(10) bond length is 2.21 Å. The Mn(2)-O(3) bond length is 2.19 Å. The Mn(2)-O(6) bond length is 2.22 Å. The Mn(2)-O(8) bond length is 2.17 Å. There are twenty inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(3) atom. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(3) bond length is 1.09 Å. In the second C site, C(3) is bonded in a distorted single-bond geometry to one C(4) and one H(4) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(4) bond length is 1.09 Å. In the third C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(6) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.51 Å. In the fourth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one H(5) atom. The C(5)-N(1) bond length is 1.34 Å. The C(5)-H(5) bond length is 1.09 Å. In the fifth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.28 Å. The C(6)-O(4) bond length is 1.27 Å. In the sixth C site, C(9) is bonded in a distorted single-bond geometry to one C(10) and one H(8) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-H(8) bond length is 1.09 Å. In the seventh C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(9) atom. The C(10)-C(11) bond length is 1.51 Å. The C(10)-C(12) bond length is 1.40 Å. In the eighth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(8), and one O(9) atom. The C(11)-O(8) bond length is 1.28 Å. The C(11)-O(9) bond length is 1.27 Å. In the ninth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(10), one N(2), and one H(9) atom. The C(12)-N(2) bond length is 1.34 Å. The C(12)-H(9) bond length is 1.08 Å. In the tenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one N(4) and one H(10) atom. The C(13)-N(4) bond length is 1.35 Å. The C(13)-H(10) bond length is 1.09 Å. In the eleventh C site, C(17) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(13) atom. The C(17)-N(3) bond length is 1.34 Å. The C(17)-H(13) bond length is 1.09 Å. In the twelfth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(19), one N(3), and one H(14) atom. The C(18)-C(19) bond length is 1.39 Å. The C(18)-N(3) bond length is 1.34 Å. The C(18)-H(14) bond length is 1.09 Å. In the thirteenth C site, C(19) is bonded in a trigonal planar geometry to one C(18), one C(20), and one C(21) atom. The C(19)-C(20) bond length is 1.39 Å. The C(19)-C(21) bond length is 1.50 Å. In the fourteenth C site, C(20) is bonded in a distorted single-bond geometry to one C(19) and one H(15) atom. The C(20)-H(15) bond length is 1.09 Å. In the fifteenth C site, C(21) is bonded in a distorted bent 120 degrees geometry to one C(19), one O(6), and one O(7) atom. The C(21)-O(6) bond length is 1.27 Å. The C(21)-O(7) bond length is 1.27 Å. In the sixteenth C site, C(22) is bonded in a distorted single-bond geometry to one C(23) and one H(16) atom. The C(22)-C(23) bond length is 1.39 Å. The C(22)-H(16) bond length is 1.09 Å. In the seventeenth C site, C(23) is bonded in a trigonal planar geometry to one C(22), one C(24), and one C(25) atom. The C(23)-C(24) bond length is 1.50 Å. The C(23)-C(25) bond length is 1.39 Å. In the eighteenth C site, C(24) is bonded in a distorted bent 120 degrees geometry to one C(23), one O(11), and one O(12) atom. The C(24)-O(11) bond length is 1.27 Å. The C(24)-O(12) bond length is 1.28 Å. In the nineteenth C site, C(25) is bonded in a distorted bent 120 degrees geometry to one C(23), one N(4), and one H(17) atom. The C(25)-N(4) bond length is 1.35 Å. The C(25)-H(17) bond length is 1.09 Å. In the twentieth C site, C(26) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(18) atom. The C(26)-N(2) bond length is 1.34 Å. The C(26)-H(18) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Mn(1), one C(1), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Mn(2), one C(12), and one C(26) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Mn(1), one C(17), and one C(18) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Mn(2), one C(13), and one C(25) atom. There are fourteen inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(10) and one O(7) atom. The H(1)-O(10) bond length is 1.03 Å. The H(1)-O(7) bond length is 1.51 Å. In the second H site, H(2) is bonded in a linear geometry to one O(10) and one O(11) atom. The H(2)-O(10) bond length is 1.04 Å. The H(2)-O(11) bond length is 1.49 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(9) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(10) is bonded in a single-bond geometry to one C(13) atom. In the ninth H site, H(13) is bonded in a single-bond geometry to one C(17) atom. In the tenth H site, H(14) is bonded in a single-bond geometry to one C(18) atom. In the eleventh H site, H(15) is bonded in a single-bond geometry to one C(20) atom. In the twelfth H site, H(16) is bonded in a single-bond geometry to one C(22) atom. In the thirteenth H site, H(17) is bonded in a single-bond geometry to one C(25) atom. In the fourteenth H site, H(18) is bonded in a single-bond geometry to one C(26) atom. There are nine inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(6) atom. In the second O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(6) atom. In the third O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(21) atom. In the fourth O site, O(7) is bonded in a water-like geometry to one C(21) and one H(1) atom. In the fifth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(11) atom. In the sixth O site, O(9) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(11) atom. In the seventh O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Mn(1), one Mn(2), one H(1), and one H(2) atom. In the eighth O site, O(11) is bonded in a water-like geometry to one C(24) and one H(2) atom. In the ninth O site, O(12) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(24) atom. Linkers: 4 [O]C(=O)c1cncc(OCOc2cncc(C([O])=O)c2)c1. Metal clusters: 2 O.O=[C]O[Mn]1O[C]O[Mn](O[C]=O)O[C]O1. RCSR code: sql. The MOF has largest included sphere 4.53 A, density 1.48 g/cm3, surface area 3654.46 m2/g, accessible volume 0.26 cm3/g