MgMn6(O2F)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(4), one O(7), one F(2), one F(3), and one F(4) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(6)O3F3 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  a cornercorner with one Mn(4)O4F square pyramid,  an edgeedge with one Mn(5)O4F2 octahedra, edges with two equivalent Mn(1)O4F2 octahedra,  a faceface with one Mn(6)O3F3 octahedra, and  a faceface with one Mn(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-50°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(7), one O(8), one F(2), and one F(4) atom to form MnO4F2 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  an edgeedge with one Mn(5)O4F2 octahedra, edges with two equivalent Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(4)O4F square pyramid. The corner-sharing octahedral tilt angles range from 25-60°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(5), one O(7), one F(2), and one F(3) atom to form distorted MnO4F2 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with three equivalent Mn(1)O4F2 octahedra, corners with three equivalent Mn(5)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  a cornercorner with one Mn(4)O4F square pyramid,  an edgeedge with one Mn(6)O3F3 octahedra, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 25-58°. In the third Mn site, Mn(3) is bonded to one O(2), one O(4), one O(5), one O(6), and one F(1) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(1)O4F2 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra, corners with three equivalent Mn(5)O4F2 octahedra, corners with three equivalent Mn(4)O4F square pyramids, and  an edgeedge with one Mn(6)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 39-71°. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(5), one O(6), one O(8), and one F(4) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(3)O4F square pyramids,  an edgeedge with one Mn(1)O4F2 octahedra, and  an edgeedge with one Mn(5)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 39-81°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(6), one O(7), one F(1), and one F(3) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O4F2 octahedra, corners with three equivalent Mn(3)O4F square pyramids,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(1)O4F2 octahedra, and  an edgeedge with one Mn(4)O4F square pyramid. The corner-sharing octahedral tilt angles range from 42-57°. In the sixth Mn site, Mn(6) is bonded to one O(3), one O(4), one O(8), one F(1), one F(3), and one F(4) atom to form distorted MnO3F3 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(5)O4F2 octahedra, corners with three equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(4)O4F square pyramids,  an edgeedge with one Mn(2)O4F2 octahedra,  an edgeedge with one Mn(3)O4F square pyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 41-60°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(1), one Mn(3), 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(3), and one Mn(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent F(4)MgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the third F site, F(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(2), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom to form FMgMn3 trigonal pyramids that share corners with two equivalent O(7)MgMn3 trigonal pyramids.
MgMn6(O2F)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(4), one O(7), one F(2), one F(3), and one F(4) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(6)O3F3 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  a cornercorner with one Mn(4)O4F square pyramid,  an edgeedge with one Mn(5)O4F2 octahedra, edges with two equivalent Mn(1)O4F2 octahedra,  a faceface with one Mn(6)O3F3 octahedra, and  a faceface with one Mn(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-50°. The Mg(1)-O(3) bond length is 2.02 Å. The Mg(1)-O(4) bond length is 2.07 Å. The Mg(1)-O(7) bond length is 2.02 Å. The Mg(1)-F(2) bond length is 1.98 Å. The Mg(1)-F(3) bond length is 2.06 Å. The Mg(1)-F(4) bond length is 1.99 Å. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(7), one O(8), one F(2), and one F(4) atom to form MnO4F2 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  an edgeedge with one Mn(5)O4F2 octahedra, edges with two equivalent Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(4)O4F square pyramid. The corner-sharing octahedral tilt angles range from 25-60°. The Mn(1)-O(1) bond length is 1.91 Å. The Mn(1)-O(4) bond length is 2.00 Å. The Mn(1)-O(7) bond length is 2.19 Å. The Mn(1)-O(8) bond length is 1.99 Å. The Mn(1)-F(2) bond length is 2.05 Å. The Mn(1)-F(4) bond length is 2.28 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(5), one O(7), one F(2), and one F(3) atom to form distorted MnO4F2 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with three equivalent Mn(1)O4F2 octahedra, corners with three equivalent Mn(5)O4F2 octahedra,  a cornercorner with one Mn(3)O4F square pyramid,  a cornercorner with one Mn(4)O4F square pyramid,  an edgeedge with one Mn(6)O3F3 octahedra, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 25-58°. The Mn(2)-O(1) bond length is 1.96 Å. The Mn(2)-O(3) bond length is 2.00 Å. The Mn(2)-O(5) bond length is 1.92 Å. The Mn(2)-O(7) bond length is 1.99 Å. The Mn(2)-F(2) bond length is 2.53 Å. The Mn(2)-F(3) bond length is 2.13 Å. In the third Mn site, Mn(3) is bonded to one O(2), one O(4), one O(5), one O(6), and one F(1) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(1)O4F2 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra, corners with three equivalent Mn(5)O4F2 octahedra, corners with three equivalent Mn(4)O4F square pyramids, and  an edgeedge with one Mn(6)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 39-71°. The Mn(3)-O(2) bond length is 2.01 Å. The Mn(3)-O(4) bond length is 2.15 Å. The Mn(3)-O(5) bond length is 1.89 Å. The Mn(3)-O(6) bond length is 1.99 Å. The Mn(3)-F(1) bond length is 2.00 Å. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(5), one O(6), one O(8), and one F(4) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(2)O4F2 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(3)O4F square pyramids,  an edgeedge with one Mn(1)O4F2 octahedra, and  an edgeedge with one Mn(5)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 39-81°. The Mn(4)-O(2) bond length is 1.93 Å. The Mn(4)-O(5) bond length is 2.05 Å. The Mn(4)-O(6) bond length is 1.94 Å. The Mn(4)-O(8) bond length is 1.95 Å. The Mn(4)-F(4) bond length is 2.17 Å. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(6), one O(7), one F(1), and one F(3) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O4F2 octahedra, corners with three equivalent Mn(3)O4F square pyramids,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(1)O4F2 octahedra, and  an edgeedge with one Mn(4)O4F square pyramid. The corner-sharing octahedral tilt angles range from 42-57°. The Mn(5)-O(1) bond length is 1.97 Å. The Mn(5)-O(2) bond length is 1.96 Å. The Mn(5)-O(6) bond length is 1.97 Å. The Mn(5)-O(7) bond length is 1.95 Å. The Mn(5)-F(1) bond length is 2.23 Å. The Mn(5)-F(3) bond length is 2.44 Å. In the sixth Mn site, Mn(6) is bonded to one O(3), one O(4), one O(8), one F(1), one F(3), and one F(4) atom to form distorted MnO3F3 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(5)O4F2 octahedra, corners with three equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(4)O4F square pyramids,  an edgeedge with one Mn(2)O4F2 octahedra,  an edgeedge with one Mn(3)O4F square pyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 41-60°. The Mn(6)-O(3) bond length is 1.89 Å. The Mn(6)-O(4) bond length is 2.05 Å. The Mn(6)-O(8) bond length is 1.88 Å. The Mn(6)-F(1) bond length is 2.18 Å. The Mn(6)-F(3) bond length is 2.19 Å. The Mn(6)-F(4) bond length is 2.17 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(1), one Mn(3), 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(3), and one Mn(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent F(4)MgMn3 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the third F site, F(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(2), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom to form FMgMn3 trigonal pyramids that share corners with two equivalent O(7)MgMn3 trigonal pyramids.