MgMn6O11F crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(2), one O(4), one O(6), one O(7), and one F(1) atom to form MgO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids,  a cornercorner with one Mn(3)O5 trigonal bipyramid,  a cornercorner with one Mn(6)O5 trigonal bipyramid,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, edges with two equivalent Mn(4)O5F octahedra,  an edgeedge with one Mn(3)O5 trigonal bipyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(5)O5F octahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(7) atom to form distorted MnO5 square pyramids 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 two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mn(3)O5 trigonal bipyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 43-61°. In the third Mn site, Mn(3) is bonded to one O(2), one O(3), 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, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 52-57°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(4), one O(7), one O(8), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(8), one O(9), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(1)O6 octahedra. In the sixth Mn site, Mn(6) is bonded to one O(11), one O(2), one O(4), one O(5), and one O(6) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-59°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Mn(6) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Mn(3), and one Mn(6) 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 corner and edge-sharing OMgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one Mn(1) and one Mn(5) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Mn(4) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. F(1) is bonded in a distorted T-shaped 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(10), one O(2), one O(4), one O(6), one O(7), and one F(1) atom to form MgO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids,  a cornercorner with one Mn(3)O5 trigonal bipyramid,  a cornercorner with one Mn(6)O5 trigonal bipyramid,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, edges with two equivalent Mn(4)O5F octahedra,  an edgeedge with one Mn(3)O5 trigonal bipyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. The Mg(1)-O(10) bond length is 1.98 Å. The Mg(1)-O(2) bond length is 2.10 Å. The Mg(1)-O(4) bond length is 2.13 Å. The Mg(1)-O(6) bond length is 2.07 Å. The Mg(1)-O(7) bond length is 2.12 Å. The Mg(1)-F(1) bond length is 1.98 Å. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(5)O5F octahedra. The Mn(1)-O(1) bond length is 1.90 Å. The Mn(1)-O(10) bond length is 1.97 Å. The Mn(1)-O(11) bond length is 1.95 Å. The Mn(1)-O(3) bond length is 1.92 Å. The Mn(1)-O(6) bond length is 2.06 Å. The Mn(1)-O(9) bond length is 1.90 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(7) atom to form distorted MnO5 square pyramids 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 two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mn(3)O5 trigonal bipyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 43-61°. The Mn(2)-O(1) bond length is 2.21 Å. The Mn(2)-O(3) bond length is 1.93 Å. The Mn(2)-O(4) bond length is 2.02 Å. The Mn(2)-O(5) bond length is 1.94 Å. The Mn(2)-O(7) bond length is 1.99 Å. In the third Mn site, Mn(3) is bonded to one O(2), one O(3), 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, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(6)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 52-57°. The Mn(3)-O(2) bond length is 1.99 Å. The Mn(3)-O(3) bond length is 1.93 Å. The Mn(3)-O(6) bond length is 2.00 Å. The Mn(3)-O(7) bond length is 2.01 Å. The Mn(3)-O(8) bond length is 2.05 Å. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(4), one O(7), one O(8), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mn(5)O5F octahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Mg(1)O5F octahedra. The Mn(4)-O(10) bond length is 1.84 Å. The Mn(4)-O(11) bond length is 1.91 Å. The Mn(4)-O(4) bond length is 1.96 Å. The Mn(4)-O(7) bond length is 1.99 Å. The Mn(4)-O(8) bond length is 1.92 Å. The Mn(4)-F(1) bond length is 2.02 Å. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(8), one O(9), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(2)O5 square pyramids, corners with two equivalent Mn(3)O5 trigonal bipyramids, corners with two equivalent Mn(6)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(4)O5F octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The Mn(5)-O(1) bond length is 1.92 Å. The Mn(5)-O(2) bond length is 2.04 Å. The Mn(5)-O(5) bond length is 1.92 Å. The Mn(5)-O(8) bond length is 1.94 Å. The Mn(5)-O(9) bond length is 1.81 Å. The Mn(5)-F(1) bond length is 2.11 Å. In the sixth Mn site, Mn(6) is bonded to one O(11), one O(2), one O(4), one O(5), and one O(6) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5F octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Mg(1)O5F octahedra,  an edgeedge with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-59°. The Mn(6)-O(11) bond length is 2.05 Å. The Mn(6)-O(2) bond length is 1.99 Å. The Mn(6)-O(4) bond length is 2.01 Å. The Mn(6)-O(5) bond length is 1.92 Å. The Mn(6)-O(6) bond length is 1.95 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom to form a mixture of distorted corner and edge-sharing OMgMn3 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Mn(6) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Mn(3), and one Mn(6) 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 corner and edge-sharing OMgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one Mn(1) and one Mn(5) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Mn(4) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. F(1) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(4), and one Mn(5) atom.