Mn2(CO3)3 crystallizes in the triclinic P1 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(12), one O(16), one O(2), one O(4), and one O(6) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 70-71°. In the second Mn site, Mn(2) is bonded to one O(11), one O(16), one O(17), one O(3), one O(5), and one O(9) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-70°. In the third Mn site, Mn(3) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(15), one O(6), one O(7), and one O(9) atom. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(12), one O(15), one O(18), one O(5), and one O(8) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-71°. There are six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(11), one O(2), and one O(8) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(12), one O(14), and one O(9) atom. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one O(13), one O(15), and one O(16) atom. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one O(17), one O(18), and one O(4) atom. There are eighteen 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(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one C(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(3), and one C(3) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Mn(3) and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one C(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one C(4) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(4) and one C(1) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one C(4) atom. In the thirteenth O site, O(13) is bonded in a water-like geometry to one Mn(3) and one C(5) atom. In the fourteenth O site, O(14) is bonded in an L-shaped geometry to one Mn(3) and one C(4) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(4), and one C(5) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one C(5) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one C(6) atom. In the eighteenth O site, O(18) is bonded in a bent 150 degrees geometry to one Mn(4) and one C(6) atom.
Mn2(CO3)3 crystallizes in the triclinic P1 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(12), one O(16), one O(2), one O(4), and one O(6) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 70-71°. The Mn(1)-O(1) bond length is 1.96 Å. The Mn(1)-O(12) bond length is 2.62 Å. The Mn(1)-O(16) bond length is 2.04 Å. The Mn(1)-O(2) bond length is 1.94 Å. The Mn(1)-O(4) bond length is 1.95 Å. The Mn(1)-O(6) bond length is 2.16 Å. In the second Mn site, Mn(2) is bonded to one O(11), one O(16), one O(17), one O(3), one O(5), and one O(9) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-70°. The Mn(2)-O(11) bond length is 1.97 Å. The Mn(2)-O(16) bond length is 2.46 Å. The Mn(2)-O(17) bond length is 1.95 Å. The Mn(2)-O(3) bond length is 1.96 Å. The Mn(2)-O(5) bond length is 1.99 Å. The Mn(2)-O(9) bond length is 2.34 Å. In the third Mn site, Mn(3) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(15), one O(6), one O(7), and one O(9) atom. The Mn(3)-O(13) bond length is 1.95 Å. The Mn(3)-O(14) bond length is 2.04 Å. The Mn(3)-O(15) bond length is 2.33 Å. The Mn(3)-O(6) bond length is 2.33 Å. The Mn(3)-O(7) bond length is 2.07 Å. The Mn(3)-O(9) bond length is 2.09 Å. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(12), one O(15), one O(18), one O(5), and one O(8) atom to form distorted corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 66-71°. The Mn(4)-O(10) bond length is 1.96 Å. The Mn(4)-O(12) bond length is 2.00 Å. The Mn(4)-O(15) bond length is 2.23 Å. The Mn(4)-O(18) bond length is 1.96 Å. The Mn(4)-O(5) bond length is 2.46 Å. The Mn(4)-O(8) bond length is 1.95 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(3) atom. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(10) bond length is 1.30 Å. The C(1)-O(3) bond length is 1.28 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(11), one O(2), and one O(8) atom. The C(2)-O(11) bond length is 1.30 Å. The C(2)-O(2) bond length is 1.29 Å. The C(2)-O(8) bond length is 1.29 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. The C(3)-O(5) bond length is 1.31 Å. The C(3)-O(6) bond length is 1.31 Å. The C(3)-O(7) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(12), one O(14), and one O(9) atom. The C(4)-O(12) bond length is 1.29 Å. The C(4)-O(14) bond length is 1.28 Å. The C(4)-O(9) bond length is 1.33 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one O(13), one O(15), and one O(16) atom. The C(5)-O(13) bond length is 1.30 Å. The C(5)-O(15) bond length is 1.29 Å. The C(5)-O(16) bond length is 1.29 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one O(17), one O(18), and one O(4) atom. The C(6)-O(17) bond length is 1.29 Å. The C(6)-O(18) bond length is 1.28 Å. The C(6)-O(4) bond length is 1.31 Å. There are eighteen 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(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one C(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(3), and one C(3) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Mn(3) and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one C(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one C(4) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(4) and one C(1) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one C(4) atom. In the thirteenth O site, O(13) is bonded in a water-like geometry to one Mn(3) and one C(5) atom. In the fourteenth O site, O(14) is bonded in an L-shaped geometry to one Mn(3) and one C(4) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(4), and one C(5) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one C(5) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one C(6) atom. In the eighteenth O site, O(18) is bonded in a bent 150 degrees geometry to one Mn(4) and one C(6) atom.