Mn6OF11 crystallizes in the monoclinic C2/m space group. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), one F(6), and four equivalent F(2) atoms to form distorted edge-sharing MnO2F5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one O(1), one F(1), one F(6), one F(8), two equivalent F(2), and two equivalent F(5) atoms. In the third Mn site, Mn(3) is bonded in a body-centered cubic geometry to one F(1), one F(3), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. In the fourth Mn site, Mn(4) is bonded in a body-centered cubic geometry to two equivalent F(3), two equivalent F(7), and four equivalent F(4) atoms. In the fifth Mn site, Mn(5) is bonded in a distorted body-centered cubic geometry to one F(1), one F(3), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. O(1) is bonded to two equivalent Mn(1) and two equivalent Mn(2) atoms to form OMn4 tetrahedra that share corners with two equivalent F(8)Mn4 tetrahedra, corners with four equivalent F(5)Mn4 tetrahedra,  an edgeedge with one O(1)Mn4 tetrahedra, and  an edgeedge with one F(1)Mn4 tetrahedra. There are eight inequivalent F sites. In the first F site, F(5) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form FMn4 tetrahedra that share corners with two equivalent O(1)Mn4 tetrahedra, corners with two equivalent F(3)Mn4 tetrahedra, corners with two equivalent F(4)Mn4 tetrahedra, corners with two equivalent F(7)Mn4 tetrahedra, corners with four equivalent F(5)Mn4 tetrahedra,  an edgeedge with one F(4)Mn4 tetrahedra, edges with two equivalent F(1)Mn4 tetrahedra, and edges with two equivalent F(8)Mn4 tetrahedra. In the second F site, F(6) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the third F site, F(7) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra. In the fourth F site, F(8) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form distorted FMn4 tetrahedra that share corners with two equivalent O(1)Mn4 tetrahedra, corners with two equivalent F(3)Mn4 tetrahedra, corners with four equivalent F(1)Mn4 tetrahedra, corners with four equivalent F(4)Mn4 tetrahedra,  an edgeedge with one F(7)Mn4 tetrahedra, and edges with four equivalent F(5)Mn4 tetrahedra. In the fifth F site, F(1) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form FMn4 tetrahedra that share corners with two equivalent F(7)Mn4 tetrahedra, corners with four equivalent F(4)Mn4 tetrahedra, corners with four equivalent F(8)Mn4 tetrahedra,  an edgeedge with one O(1)Mn4 tetrahedra,  an edgeedge with one F(3)Mn4 tetrahedra, and edges with four equivalent F(5)Mn4 tetrahedra. In the sixth F site, F(2) is bonded in a 4-coordinate geometry to two equivalent Mn(1) and two equivalent Mn(2) atoms. In the seventh F site, F(3) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra. In the eighth F site, F(4) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra.
Mn6OF11 crystallizes in the monoclinic C2/m space group. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), one F(6), and four equivalent F(2) atoms to form distorted edge-sharing MnO2F5 trigonal bipyramids. There is one shorter (1.92 Å) and one longer (1.95 Å) Mn(1)-O(1) bond length. The Mn(1)-F(6) bond length is 1.93 Å. There are two shorter (2.05 Å) and two longer (2.62 Å) Mn(1)-F(2) bond lengths. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one O(1), one F(1), one F(6), one F(8), two equivalent F(2), and two equivalent F(5) atoms. The Mn(2)-O(1) bond length is 2.25 Å. The Mn(2)-F(1) bond length is 2.28 Å. The Mn(2)-F(6) bond length is 2.32 Å. The Mn(2)-F(8) bond length is 2.24 Å. There is one shorter (2.21 Å) and one longer (2.44 Å) Mn(2)-F(2) bond length. There is one shorter (2.24 Å) and one longer (2.34 Å) Mn(2)-F(5) bond length. In the third Mn site, Mn(3) is bonded in a body-centered cubic geometry to one F(1), one F(3), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. The Mn(3)-F(1) bond length is 2.18 Å. The Mn(3)-F(3) bond length is 2.38 Å. The Mn(3)-F(7) bond length is 2.47 Å. The Mn(3)-F(8) bond length is 2.13 Å. Both Mn(3)-F(4) bond lengths are 2.18 Å. Both Mn(3)-F(5) bond lengths are 2.42 Å. In the fourth Mn site, Mn(4) is bonded in a body-centered cubic geometry to two equivalent F(3), two equivalent F(7), and four equivalent F(4) atoms. Both Mn(4)-F(3) bond lengths are 2.26 Å. Both Mn(4)-F(7) bond lengths are 2.27 Å. There are two shorter (2.25 Å) and two longer (2.34 Å) Mn(4)-F(4) bond lengths. In the fifth Mn site, Mn(5) is bonded in a distorted body-centered cubic geometry to one F(1), one F(3), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. The Mn(5)-F(1) bond length is 2.33 Å. The Mn(5)-F(3) bond length is 2.21 Å. The Mn(5)-F(7) bond length is 2.16 Å. The Mn(5)-F(8) bond length is 2.63 Å. Both Mn(5)-F(4) bond lengths are 2.37 Å. Both Mn(5)-F(5) bond lengths are 2.16 Å. O(1) is bonded to two equivalent Mn(1) and two equivalent Mn(2) atoms to form OMn4 tetrahedra that share corners with two equivalent F(8)Mn4 tetrahedra, corners with four equivalent F(5)Mn4 tetrahedra,  an edgeedge with one O(1)Mn4 tetrahedra, and  an edgeedge with one F(1)Mn4 tetrahedra. There are eight inequivalent F sites. In the first F site, F(5) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form FMn4 tetrahedra that share corners with two equivalent O(1)Mn4 tetrahedra, corners with two equivalent F(3)Mn4 tetrahedra, corners with two equivalent F(4)Mn4 tetrahedra, corners with two equivalent F(7)Mn4 tetrahedra, corners with four equivalent F(5)Mn4 tetrahedra,  an edgeedge with one F(4)Mn4 tetrahedra, edges with two equivalent F(1)Mn4 tetrahedra, and edges with two equivalent F(8)Mn4 tetrahedra. In the second F site, F(6) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the third F site, F(7) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra. In the fourth F site, F(8) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form distorted FMn4 tetrahedra that share corners with two equivalent O(1)Mn4 tetrahedra, corners with two equivalent F(3)Mn4 tetrahedra, corners with four equivalent F(1)Mn4 tetrahedra, corners with four equivalent F(4)Mn4 tetrahedra,  an edgeedge with one F(7)Mn4 tetrahedra, and edges with four equivalent F(5)Mn4 tetrahedra. In the fifth F site, F(1) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(2) atoms to form FMn4 tetrahedra that share corners with two equivalent F(7)Mn4 tetrahedra, corners with four equivalent F(4)Mn4 tetrahedra, corners with four equivalent F(8)Mn4 tetrahedra,  an edgeedge with one O(1)Mn4 tetrahedra,  an edgeedge with one F(3)Mn4 tetrahedra, and edges with four equivalent F(5)Mn4 tetrahedra. In the sixth F site, F(2) is bonded in a 4-coordinate geometry to two equivalent Mn(1) and two equivalent Mn(2) atoms. In the seventh F site, F(3) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra. In the eighth F site, F(4) is bonded to one Mn(3), one Mn(5), and two equivalent Mn(4) atoms to form a mixture of corner and edge-sharing FMn4 tetrahedra.