MgMn6O11F crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), one O(6), one O(7), one O(8), and one F(1) atom to form MgO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid,  a cornercorner with one Mn(3)O5 trigonal bipyramid, edges with two equivalent Mn(4)O5F octahedra, edges with two equivalent Mn(5)O5F octahedra,  an edgeedge with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-51°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share corners with two equivalent Mg(1)O5F octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with four equivalent Mn(6)O6 octahedra,  an edgeedge with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 47-59°. In the second Mn site, Mn(2) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra,  a cornercorner with one Mn(5)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, corners with three equivalent Mn(4)O5F octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-58°. In the third Mn site, Mn(3) is bonded to one O(10), one O(4), one O(6), one O(7), and one O(8) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra,  a cornercorner with one Mn(4)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, corners with three equivalent Mn(5)O5F octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 45-57°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(11), one O(2), one O(5), one O(7), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(3)O5 trigonal bipyramid, corners with three equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. The corner-sharing octahedral tilt angles range from 51-59°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, corners with three equivalent Mn(3)O5 trigonal bipyramids,  an edgeedge with one Mn(4)O5F octahedra,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. The corner-sharing octahedral tilt angles range from 51-58°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(9) atom to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O5 trigonal bipyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 47-52°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(4) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(5) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(1), one Mn(3), and one Mn(5) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(6) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one Mn(6) atom. F(1) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(4), and one Mn(5) atom.
MgMn6O11F crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), one O(6), one O(7), one O(8), and one F(1) atom to form MgO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid,  a cornercorner with one Mn(3)O5 trigonal bipyramid, edges with two equivalent Mn(4)O5F octahedra, edges with two equivalent Mn(5)O5F octahedra,  an edgeedge with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-51°. The Mg(1)-O(1) bond length is 1.94 Å. The Mg(1)-O(5) bond length is 2.14 Å. The Mg(1)-O(6) bond length is 2.08 Å. The Mg(1)-O(7) bond length is 2.08 Å. The Mg(1)-O(8) bond length is 2.13 Å. The Mg(1)-F(1) bond length is 1.95 Å. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share corners with two equivalent Mg(1)O5F octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with four equivalent Mn(6)O6 octahedra,  an edgeedge with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 47-59°. The Mn(1)-O(11) bond length is 2.59 Å. The Mn(1)-O(3) bond length is 2.40 Å. The Mn(1)-O(4) bond length is 1.93 Å. The Mn(1)-O(5) bond length is 1.97 Å. The Mn(1)-O(8) bond length is 1.98 Å. The Mn(1)-O(9) bond length is 1.93 Å. In the second Mn site, Mn(2) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra,  a cornercorner with one Mn(5)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, corners with three equivalent Mn(4)O5F octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-58°. The Mn(2)-O(2) bond length is 2.03 Å. The Mn(2)-O(5) bond length is 2.00 Å. The Mn(2)-O(6) bond length is 2.03 Å. The Mn(2)-O(7) bond length is 1.95 Å. The Mn(2)-O(9) bond length is 1.91 Å. In the third Mn site, Mn(3) is bonded to one O(10), one O(4), one O(6), one O(7), and one O(8) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra,  a cornercorner with one Mn(4)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, corners with three equivalent Mn(5)O5F octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 45-57°. The Mn(3)-O(10) bond length is 2.05 Å. The Mn(3)-O(4) bond length is 1.92 Å. The Mn(3)-O(6) bond length is 1.96 Å. The Mn(3)-O(7) bond length is 2.05 Å. The Mn(3)-O(8) bond length is 2.00 Å. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(11), one O(2), one O(5), one O(7), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(3)O5 trigonal bipyramid, corners with three equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. The corner-sharing octahedral tilt angles range from 51-59°. The Mn(4)-O(1) bond length is 1.94 Å. The Mn(4)-O(11) bond length is 1.86 Å. The Mn(4)-O(2) bond length is 1.85 Å. The Mn(4)-O(5) bond length is 2.00 Å. The Mn(4)-O(7) bond length is 1.98 Å. The Mn(4)-F(1) bond length is 2.08 Å. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, corners with three equivalent Mn(3)O5 trigonal bipyramids,  an edgeedge with one Mn(4)O5F octahedra,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. The corner-sharing octahedral tilt angles range from 51-58°. The Mn(5)-O(1) bond length is 1.91 Å. The Mn(5)-O(10) bond length is 1.90 Å. The Mn(5)-O(3) bond length is 1.82 Å. The Mn(5)-O(6) bond length is 2.01 Å. The Mn(5)-O(8) bond length is 1.99 Å. The Mn(5)-F(1) bond length is 2.12 Å. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(9) atom to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O5 trigonal bipyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 47-52°. The Mn(6)-O(10) bond length is 1.91 Å. The Mn(6)-O(11) bond length is 1.91 Å. The Mn(6)-O(2) bond length is 1.95 Å. The Mn(6)-O(3) bond length is 1.97 Å. The Mn(6)-O(4) bond length is 1.96 Å. The Mn(6)-O(9) bond length is 1.97 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(4) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(5) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(1), one Mn(3), and one Mn(5) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(6) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one Mn(6) atom. F(1) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(4), and one Mn(5) atom.