RbMn6O12 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(5), one O(6), two equivalent O(10), and two equivalent O(2) atoms. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), one O(5), one O(8), and two equivalent O(1) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(7), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the third Mn site, Mn(3) is bonded to one O(4), one O(5), one O(7), one O(9), and two equivalent O(10) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(2), one O(3), one O(9), and two equivalent O(12) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the fifth Mn site, Mn(5) is bonded to one O(11), one O(12), one O(2), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the sixth Mn site, Mn(6) is bonded to one O(1), one O(10), one O(11), one O(5), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(6), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Rb(1), one Mn(2), one Mn(4), and one Mn(5) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(4) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(1), one Mn(3), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(5), and two equivalent Mn(2) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(5) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(6) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to two equivalent Rb(1), one Mn(6), and two equivalent Mn(3) atoms. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(4), one Mn(5), and one Mn(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(5), and two equivalent Mn(4) atoms.
RbMn6O12 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(5), one O(6), two equivalent O(10), and two equivalent O(2) atoms. The Rb(1)-O(1) bond length is 2.79 Å. The Rb(1)-O(12) bond length is 2.80 Å. The Rb(1)-O(5) bond length is 2.79 Å. The Rb(1)-O(6) bond length is 2.80 Å. There is one shorter (3.06 Å) and one longer (3.08 Å) Rb(1)-O(10) bond length. Both Rb(1)-O(2) bond lengths are 3.07 Å. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), one O(5), one O(8), and two equivalent O(1) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(1)-O(3) bond length is 1.91 Å. The Mn(1)-O(4) bond length is 1.90 Å. The Mn(1)-O(5) bond length is 1.92 Å. The Mn(1)-O(8) bond length is 1.89 Å. There is one shorter (1.91 Å) and one longer (1.95 Å) Mn(1)-O(1) bond length. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(7), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(2)-O(2) bond length is 1.93 Å. The Mn(2)-O(3) bond length is 1.89 Å. The Mn(2)-O(4) bond length is 1.91 Å. The Mn(2)-O(7) bond length is 1.89 Å. Both Mn(2)-O(6) bond lengths are 1.93 Å. In the third Mn site, Mn(3) is bonded to one O(4), one O(5), one O(7), one O(9), and two equivalent O(10) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(3)-O(4) bond length is 1.89 Å. The Mn(3)-O(5) bond length is 1.92 Å. The Mn(3)-O(7) bond length is 1.91 Å. The Mn(3)-O(9) bond length is 1.90 Å. There is one shorter (1.93 Å) and one longer (1.95 Å) Mn(3)-O(10) bond length. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(2), one O(3), one O(9), and two equivalent O(12) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(4)-O(11) bond length is 1.89 Å. The Mn(4)-O(2) bond length is 1.93 Å. The Mn(4)-O(3) bond length is 1.89 Å. The Mn(4)-O(9) bond length is 1.91 Å. There is one shorter (1.92 Å) and one longer (1.94 Å) Mn(4)-O(12) bond length. In the fifth Mn site, Mn(5) is bonded to one O(11), one O(12), one O(2), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(5)-O(11) bond length is 1.90 Å. The Mn(5)-O(12) bond length is 1.92 Å. The Mn(5)-O(2) bond length is 1.96 Å. The Mn(5)-O(6) bond length is 1.91 Å. The Mn(5)-O(7) bond length is 1.90 Å. The Mn(5)-O(8) bond length is 1.91 Å. In the sixth Mn site, Mn(6) is bonded to one O(1), one O(10), one O(11), one O(5), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Mn(6)-O(1) bond length is 1.92 Å. The Mn(6)-O(10) bond length is 1.94 Å. The Mn(6)-O(11) bond length is 1.91 Å. The Mn(6)-O(5) bond length is 1.94 Å. The Mn(6)-O(8) bond length is 1.89 Å. The Mn(6)-O(9) bond length is 1.89 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(6), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Rb(1), one Mn(2), one Mn(4), and one Mn(5) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(4) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(1), one Mn(3), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(5), and two equivalent Mn(2) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(5) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(6) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to two equivalent Rb(1), one Mn(6), and two equivalent Mn(3) atoms. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(4), one Mn(5), and one Mn(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Rb(1), one Mn(5), and two equivalent Mn(4) atoms.