Mn6OF11 is Hydrophilite-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(4), one F(7), two equivalent F(1), and two equivalent F(8) atoms to form MnF6 octahedra that share corners with two equivalent Mn(3)OF5 octahedra, corners with three equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(2)OF5 octahedra,  an edgeedge with one Mn(5)F6 octahedra, and  an edgeedge with one Mn(4)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. In the second Mn site, Mn(2) is bonded to one O(1), one F(4), one F(5), one F(6), and two equivalent F(1) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(4)OF5 octahedra, corners with three equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(5)F6 octahedra,  an edgeedge with one Mn(6)F6 octahedra, and  an edgeedge with one Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. In the third Mn site, Mn(3) is bonded to one O(1), one F(3), one F(4), one F(7), and two equivalent F(2) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(5)F6 octahedra, corners with three equivalent Mn(4)OF5 octahedra,  an edgeedge with one Mn(6)F6 octahedra, and  an edgeedge with one Mn(2)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. In the fourth Mn site, Mn(4) is bonded to one O(1), one F(5), two equivalent F(2), and two equivalent F(8) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(2)OF5 octahedra, corners with three equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)F6 octahedra, and  an edgeedge with one Mn(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 47-51°. In the fifth Mn site, Mn(5) is bonded to one F(3), one F(6), two equivalent F(1), and two equivalent F(2) atoms to form MnF6 octahedra that share corners with two equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(2)OF5 octahedra, corners with three equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)F6 octahedra, and  an edgeedge with one Mn(4)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-56°. In the sixth Mn site, Mn(6) is bonded to one F(3), one F(5), one F(6), one F(7), and two equivalent F(8) atoms to form MnF6 octahedra that share corners with two equivalent Mn(5)F6 octahedra, corners with three equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(4)OF5 octahedra,  an edgeedge with one Mn(2)OF5 octahedra, and  an edgeedge with one Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. O(1) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(4) atom. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the eighth F site, F(8) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom.
Mn6OF11 is Hydrophilite-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(4), one F(7), two equivalent F(1), and two equivalent F(8) atoms to form MnF6 octahedra that share corners with two equivalent Mn(3)OF5 octahedra, corners with three equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(2)OF5 octahedra,  an edgeedge with one Mn(5)F6 octahedra, and  an edgeedge with one Mn(4)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. The Mn(1)-F(4) bond length is 2.10 Å. The Mn(1)-F(7) bond length is 2.09 Å. Both Mn(1)-F(1) bond lengths are 2.15 Å. Both Mn(1)-F(8) bond lengths are 2.17 Å. In the second Mn site, Mn(2) is bonded to one O(1), one F(4), one F(5), one F(6), and two equivalent F(1) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(4)OF5 octahedra, corners with three equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(5)F6 octahedra,  an edgeedge with one Mn(6)F6 octahedra, and  an edgeedge with one Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. The Mn(2)-O(1) bond length is 2.07 Å. The Mn(2)-F(4) bond length is 2.14 Å. The Mn(2)-F(5) bond length is 2.33 Å. The Mn(2)-F(6) bond length is 2.14 Å. Both Mn(2)-F(1) bond lengths are 2.14 Å. In the third Mn site, Mn(3) is bonded to one O(1), one F(3), one F(4), one F(7), and two equivalent F(2) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(5)F6 octahedra, corners with three equivalent Mn(4)OF5 octahedra,  an edgeedge with one Mn(6)F6 octahedra, and  an edgeedge with one Mn(2)OF5 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. The Mn(3)-O(1) bond length is 2.04 Å. The Mn(3)-F(3) bond length is 2.19 Å. The Mn(3)-F(4) bond length is 2.14 Å. The Mn(3)-F(7) bond length is 2.14 Å. Both Mn(3)-F(2) bond lengths are 2.17 Å. In the fourth Mn site, Mn(4) is bonded to one O(1), one F(5), two equivalent F(2), and two equivalent F(8) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(2)OF5 octahedra, corners with three equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)F6 octahedra, and  an edgeedge with one Mn(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 47-51°. The Mn(4)-O(1) bond length is 1.87 Å. The Mn(4)-F(5) bond length is 2.10 Å. Both Mn(4)-F(2) bond lengths are 2.12 Å. Both Mn(4)-F(8) bond lengths are 2.12 Å. In the fifth Mn site, Mn(5) is bonded to one F(3), one F(6), two equivalent F(1), and two equivalent F(2) atoms to form MnF6 octahedra that share corners with two equivalent Mn(6)F6 octahedra, corners with three equivalent Mn(2)OF5 octahedra, corners with three equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)F6 octahedra, and  an edgeedge with one Mn(4)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-56°. The Mn(5)-F(3) bond length is 2.11 Å. The Mn(5)-F(6) bond length is 2.14 Å. Both Mn(5)-F(1) bond lengths are 2.15 Å. Both Mn(5)-F(2) bond lengths are 2.17 Å. In the sixth Mn site, Mn(6) is bonded to one F(3), one F(5), one F(6), one F(7), and two equivalent F(8) atoms to form MnF6 octahedra that share corners with two equivalent Mn(5)F6 octahedra, corners with three equivalent Mn(1)F6 octahedra, corners with three equivalent Mn(4)OF5 octahedra,  an edgeedge with one Mn(2)OF5 octahedra, and  an edgeedge with one Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. The Mn(6)-F(3) bond length is 2.14 Å. The Mn(6)-F(5) bond length is 2.19 Å. The Mn(6)-F(6) bond length is 2.14 Å. The Mn(6)-F(7) bond length is 2.15 Å. Both Mn(6)-F(8) bond lengths are 2.15 Å. O(1) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(4) atom. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the eighth F site, F(8) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom.