Mn(HCOO)2 crystallizes in the triclinic P1 space group. There are twelve inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(17), one O(25), one O(33), one O(41), and one O(9) atom to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-72°. The Mn(1)-O(1) bond length is 2.21 Å. The Mn(1)-O(17) bond length is 2.22 Å. The Mn(1)-O(25) bond length is 2.17 Å. The Mn(1)-O(33) bond length is 2.14 Å. The Mn(1)-O(41) 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 O(10), one O(18), one O(2), one O(26), one O(34), and one O(42) atom to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 65°. The Mn(2)-O(10) bond length is 2.02 Å. The Mn(2)-O(18) bond length is 2.05 Å. The Mn(2)-O(2) bond length is 2.05 Å. The Mn(2)-O(26) bond length is 2.04 Å. The Mn(2)-O(34) bond length is 2.01 Å. The Mn(2)-O(42) bond length is 2.05 Å. In the third Mn site, Mn(3) is bonded to one O(11), one O(19), one O(27), one O(3), one O(35), and one O(43) atom to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 67-71°. The Mn(3)-O(11) bond length is 2.21 Å. The Mn(3)-O(19) bond length is 2.20 Å. The Mn(3)-O(27) bond length is 2.19 Å. The Mn(3)-O(3) bond length is 2.20 Å. The Mn(3)-O(35) bond length is 2.14 Å. The Mn(3)-O(43) bond length is 2.16 Å. In the fourth Mn site, Mn(4) is bonded to one O(12), one O(20), one O(28), one O(36), one O(4), and one O(44) atom to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 67-71°. The Mn(4)-O(12) bond length is 2.22 Å. The Mn(4)-O(20) bond length is 2.21 Å. The Mn(4)-O(28) bond length is 2.18 Å. The Mn(4)-O(36) bond length is 2.14 Å. The Mn(4)-O(4) bond length is 2.20 Å. The Mn(4)-O(44) bond length is 2.15 Å. In the fifth Mn site, Mn(5) is bonded to one O(18), one O(2), one O(25), one O(46), one O(5), and one O(9) atom to form edge-sharing MnO6 octahedra. The Mn(5)-O(18) bond length is 2.20 Å. The Mn(5)-O(2) bond length is 2.24 Å. The Mn(5)-O(25) bond length is 2.24 Å. The Mn(5)-O(46) bond length is 2.09 Å. The Mn(5)-O(5) bond length is 2.11 Å. The Mn(5)-O(9) bond length is 2.16 Å. In the sixth Mn site, Mn(6) is bonded to one O(1), one O(10), one O(17), one O(26), one O(45), and one O(6) atom to form edge-sharing MnO6 octahedra. The Mn(6)-O(1) bond length is 2.21 Å. The Mn(6)-O(10) bond length is 2.19 Å. The Mn(6)-O(17) bond length is 2.19 Å. The Mn(6)-O(26) bond length is 2.24 Å. The Mn(6)-O(45) bond length is 2.11 Å. The Mn(6)-O(6) bond length is 2.10 Å. In the seventh Mn site, Mn(7) is bonded to one O(11), one O(20), one O(27), one O(4), one O(48), and one O(7) atom to form edge-sharing MnO6 octahedra. The Mn(7)-O(11) bond length is 2.17 Å. The Mn(7)-O(20) bond length is 2.19 Å. The Mn(7)-O(27) bond length is 2.25 Å. The Mn(7)-O(4) bond length is 2.23 Å. The Mn(7)-O(48) bond length is 2.11 Å. The Mn(7)-O(7) bond length is 2.11 Å. In the eighth Mn site, Mn(8) is bonded to one O(12), one O(19), one O(28), one O(3), one O(47), and one O(8) atom to form edge-sharing MnO6 octahedra. The Mn(8)-O(12) bond length is 2.17 Å. The Mn(8)-O(19) bond length is 2.20 Å. The Mn(8)-O(28) bond length is 2.25 Å. The Mn(8)-O(3) bond length is 2.23 Å. The Mn(8)-O(47) bond length is 2.11 Å. The Mn(8)-O(8) bond length is 2.11 Å. In the ninth Mn site, Mn(9) is bonded to one O(13), one O(15), one O(21), one O(23), one O(33), and one O(35) atom to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-67°. The Mn(9)-O(13) bond length is 2.17 Å. The Mn(9)-O(15) bond length is 2.16 Å. The Mn(9)-O(21) bond length is 2.16 Å. The Mn(9)-O(23) bond length is 2.16 Å. The Mn(9)-O(33) bond length is 2.23 Å. The Mn(9)-O(35) bond length is 2.21 Å. In the tenth Mn site, Mn(10) is bonded to one O(14), one O(16), one O(22), one O(24), one O(34), and one O(36) atom to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 65-67°. The Mn(10)-O(14) bond length is 2.15 Å. The Mn(10)-O(16) bond length is 2.16 Å. The Mn(10)-O(22) bond length is 2.12 Å. The Mn(10)-O(24) bond length is 2.15 Å. The Mn(10)-O(34) bond length is 2.27 Å. The Mn(10)-O(36) bond length is 2.23 Å. In the eleventh Mn site, Mn(11) is bonded to one O(29), one O(31), one O(37), one O(39), one O(41), and one O(43) atom to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 71-72°. The Mn(11)-O(29) bond length is 2.17 Å. The Mn(11)-O(31) bond length is 2.16 Å. The Mn(11)-O(37) bond length is 2.15 Å. The Mn(11)-O(39) bond length is 2.15 Å. The Mn(11)-O(41) bond length is 2.22 Å. The Mn(11)-O(43) bond length is 2.23 Å. In the twelfth Mn site, Mn(12) is bonded to one O(30), one O(32), one O(38), one O(40), one O(42), and one O(44) atom to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 65-71°. The Mn(12)-O(30) bond length is 2.13 Å. The Mn(12)-O(32) bond length is 2.16 Å. The Mn(12)-O(38) bond length is 2.12 Å. The Mn(12)-O(40) bond length is 2.17 Å. The Mn(12)-O(42) bond length is 2.23 Å. The Mn(12)-O(44) bond length is 2.23 Å. There are twenty-four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one H(1), one O(1), and one O(5) atom. The C(1)-H(1) bond length is 1.10 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(5) bond length is 1.26 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one H(2), one O(2), and one O(6) atom. The C(2)-H(2) bond length is 1.10 Å. The C(2)-O(2) bond length is 1.29 Å. The C(2)-O(6) bond length is 1.26 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one H(3), one O(3), and one O(7) atom. The C(3)-H(3) bond length is 1.10 Å. The C(3)-O(3) bond length is 1.28 Å. The C(3)-O(7) bond length is 1.26 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one H(4), one O(4), and one O(8) atom. The C(4)-H(4) bond length is 1.10 Å. The C(4)-O(4) bond length is 1.28 Å. The C(4)-O(8) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one H(5), one O(13), and one O(9) atom. The C(5)-H(5) bond length is 1.11 Å. The C(5)-O(13) bond length is 1.25 Å. The C(5)-O(9) bond length is 1.29 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one H(6), one O(10), and one O(14) atom. The C(6)-H(6) bond length is 1.11 Å. The C(6)-O(10) bond length is 1.29 Å. The C(6)-O(14) bond length is 1.25 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one H(7), one O(11), and one O(15) atom. The C(7)-H(7) bond length is 1.11 Å. The C(7)-O(11) bond length is 1.29 Å. The C(7)-O(15) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one H(8), one O(12), and one O(16) atom. The C(8)-H(8) bond length is 1.11 Å. The C(8)-O(12) bond length is 1.29 Å. The C(8)-O(16) bond length is 1.25 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one H(9), one O(17), and one O(21) atom. The C(9)-H(9) bond length is 1.11 Å. The C(9)-O(17) bond length is 1.29 Å. The C(9)-O(21) bond length is 1.25 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one H(10), one O(18), and one O(22) atom. The C(10)-H(10) bond length is 1.11 Å. The C(10)-O(18) bond length is 1.29 Å. The C(10)-O(22) bond length is 1.25 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one H(11), one O(19), and one O(23) atom. The C(11)-H(11) bond length is 1.11 Å. The C(11)-O(19) bond length is 1.29 Å. The C(11)-O(23) bond length is 1.25 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one H(12), one O(20), and one O(24) atom. The C(12)-H(12) bond length is 1.11 Å. The C(12)-O(20) bond length is 1.29 Å. The C(12)-O(24) bond length is 1.25 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one H(13), one O(25), and one O(29) atom. The C(13)-H(13) bond length is 1.11 Å. The C(13)-O(25) bond length is 1.29 Å. The C(13)-O(29) bond length is 1.25 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one H(14), one O(26), and one O(30) atom. The C(14)-H(14) bond length is 1.11 Å. The C(14)-O(26) bond length is 1.29 Å. The C(14)-O(30) bond length is 1.25 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one H(15), one O(27), and one O(31) atom. The C(15)-H(15) bond length is 1.11 Å. The C(15)-O(27) bond length is 1.29 Å. The C(15)-O(31) bond length is 1.25 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one H(16), one O(28), and one O(32) atom. The C(16)-H(16) bond length is 1.11 Å. The C(16)-O(28) bond length is 1.29 Å. The C(16)-O(32) bond length is 1.25 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one H(17), one O(33), and one O(37) atom. The C(17)-H(17) bond length is 1.10 Å. The C(17)-O(33) bond length is 1.29 Å. The C(17)-O(37) bond length is 1.25 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one H(18), one O(34), and one O(38) atom. The C(18)-H(18) bond length is 1.10 Å. The C(18)-O(34) bond length is 1.30 Å. The C(18)-O(38) bond length is 1.25 Å. In the nineteenth C site, C(19) is bonded in a trigonal planar geometry to one H(19), one O(35), and one O(39) atom. The C(19)-H(19) bond length is 1.10 Å. The C(19)-O(35) bond length is 1.29 Å. The C(19)-O(39) bond length is 1.25 Å. In the twentieth C site, C(20) is bonded in a trigonal planar geometry to one H(20), one O(36), and one O(40) atom. The C(20)-H(20) bond length is 1.11 Å. The C(20)-O(36) bond length is 1.29 Å. The C(20)-O(40) bond length is 1.25 Å. In the twenty-first C site, C(21) is bonded in a trigonal planar geometry to one H(21), one O(41), and one O(45) atom. The C(21)-H(21) bond length is 1.10 Å. The C(21)-O(41) bond length is 1.29 Å. The C(21)-O(45) bond length is 1.26 Å. In the twenty-second C site, C(22) is bonded in a trigonal planar geometry to one H(22), one O(42), and one O(46) atom. The C(22)-H(22) bond length is 1.10 Å. The C(22)-O(42) bond length is 1.29 Å. The C(22)-O(46) bond length is 1.26 Å. In the twenty-third C site, C(23) is bonded in a trigonal planar geometry to one H(23), one O(43), and one O(47) atom. The C(23)-H(23) bond length is 1.10 Å. The C(23)-O(43) bond length is 1.29 Å. The C(23)-O(47) bond length is 1.26 Å. In the twenty-fourth C site, C(24) is bonded in a trigonal planar geometry to one H(24), one O(44), and one O(48) atom. The C(24)-H(24) bond length is 1.10 Å. The C(24)-O(44) bond length is 1.29 Å. The C(24)-O(48) bond length is 1.26 Å. There are twenty-four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) 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(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(8) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(9) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(10) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(11) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(12) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(13) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(14) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(15) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(16) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(17) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(18) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one C(19) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(20) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one C(21) atom. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one C(22) atom. In the twenty-third H site, H(23) is bonded in a single-bond geometry to one C(23) atom. In the twenty-fourth H site, H(24) is bonded in a single-bond geometry to one C(24) atom. There are forty-eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(6), and one C(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(5), and one C(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(8), and one C(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(4), one Mn(7), and one C(4) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(5) and one C(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(6) and one C(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mn(7) and one C(3) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mn(8) and one C(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(5), and one C(5) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(6), and one C(6) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(7), and one C(7) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mn(4), one Mn(8), and one C(8) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 120 degrees geometry to one Mn(9) and one C(5) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 120 degrees geometry to one Mn(10) and one C(6) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Mn(9) and one C(7) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Mn(10) and one C(8) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(6), and one C(9) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(5), and one C(10) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(8), and one C(11) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Mn(4), one Mn(7), and one C(12) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 120 degrees geometry to one Mn(9) and one C(9) atom. In the twenty-second O site, O(22) is bonded in a bent 120 degrees geometry to one Mn(10) and one C(10) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 120 degrees geometry to one Mn(9) and one C(11) atom. In the twenty-fourth O site, O(24) is bonded in a distorted bent 120 degrees geometry to one Mn(10) and one C(12) atom. In the twenty-fifth O site, O(25) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(5), and one C(13) atom. In the twenty-sixth O site, O(26) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(6), and one C(14) atom. In the twenty-seventh O site, O(27) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(7), and one C(15) atom. In the twenty-eighth O site, O(28) is bonded in a distorted trigonal planar geometry to one Mn(4), one Mn(8), and one C(16) atom. In the twenty-ninth O site, O(29) is bonded in a distorted bent 120 degrees geometry to one Mn(11) and one C(13) atom. In the thirtieth O site, O(30) is bonded in a bent 120 degrees geometry to one Mn(12) and one C(14) atom. In the thirty-first O site, O(31) is bonded in a distorted bent 120 degrees geometry to one Mn(11) and one C(15) atom. In the thirty-second O site, O(32) is bonded in a distorted bent 120 degrees geometry to one Mn(12) and one C(16) atom. In the thirty-third O site, O(33) is bonded in a trigonal planar geometry to one Mn(1), one Mn(9), and one C(17) atom. In the thirty-fourth O site, O(34) is bonded in a distorted trigonal planar geometry to one Mn(10), one Mn(2), and one C(18) atom. In the thirty-fifth O site, O(35) is bonded in a trigonal planar geometry to one Mn(3), one Mn(9), and one C(19) atom. In the thirty-sixth O site, O(36) is bonded in a trigonal planar geometry to one Mn(10), one Mn(4), and one C(20) atom. In the thirty-seventh O site, O(37) is bonded in a bent 150 degrees geometry to one Mn(11) and one C(17) atom. In the thirty-eighth O site, O(38) is bonded in a distorted bent 150 degrees geometry to one Mn(12) and one C(18) atom. In the thirty-ninth O site, O(39) is bonded in a bent 150 degrees geometry to one Mn(11) and one C(19) atom. In the fortieth O site, O(40) is bonded in a bent 150 degrees geometry to one Mn(12) and one C(20) atom. In the forty-first O site, O(41) is bonded in a trigonal planar geometry to one Mn(1), one Mn(11), and one C(21) atom. In the forty-second O site, O(42) is bonded in a trigonal planar geometry to one Mn(12), one Mn(2), and one C(22) atom. In the forty-third O site, O(43) is bonded in a trigonal planar geometry to one Mn(11), one Mn(3), and one C(23) atom. In the forty-fourth O site, O(44) is bonded in a trigonal planar geometry to one Mn(12), one Mn(4), and one C(24) atom. In the forty-fifth O site, O(45) is bonded in a bent 120 degrees geometry to one Mn(6) and one C(21) atom. In the forty-sixth O site, O(46) is bonded in a bent 120 degrees geometry to one Mn(5) and one C(22) atom. In the forty-seventh O site, O(47) is bonded in a bent 120 degrees geometry to one Mn(8) and one C(23) atom. In the forty-eighth O site, O(48) is bonded in a bent 120 degrees geometry to one Mn(7) and one C(24) atom. Linkers: 24 [O]C=O. Metal clusters: 12 [Mn]. The MOF has largest included sphere 4.76 A, density 1.68 g/cm3, surface area 2872.94 m2/g, accessible volume 0.30 cm3/g