Mn2OF3 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent F(1), and two equivalent F(2) atoms to form MnO2F4 octahedra that share corners with four equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra, and edges with two equivalent Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 43-59°. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent F(1), and two equivalent F(3) atoms to form MnO2F4 octahedra that share corners with four equivalent Mn(1)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra, and edges with two equivalent Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 43-57°. In the third Mn site, Mn(3) is bonded to one O(1), one F(1), two equivalent F(2), and two equivalent F(3) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(1)O2F4 octahedra, corners with two equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra, and  an edgeedge with one Mn(2)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 44-59°. O(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. There are three inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms.
Mn2OF3 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent F(1), and two equivalent F(2) atoms to form MnO2F4 octahedra that share corners with four equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra, and edges with two equivalent Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 43-59°. Both Mn(1)-O(1) bond lengths are 2.01 Å. Both Mn(1)-F(1) bond lengths are 2.11 Å. Both Mn(1)-F(2) bond lengths are 2.10 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent F(1), and two equivalent F(3) atoms to form MnO2F4 octahedra that share corners with four equivalent Mn(1)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra, and edges with two equivalent Mn(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 43-57°. Both Mn(2)-O(1) bond lengths are 1.98 Å. Both Mn(2)-F(1) bond lengths are 2.12 Å. Both Mn(2)-F(3) bond lengths are 2.06 Å. In the third Mn site, Mn(3) is bonded to one O(1), one F(1), two equivalent F(2), and two equivalent F(3) atoms to form MnOF5 octahedra that share corners with two equivalent Mn(1)O2F4 octahedra, corners with two equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(3)OF5 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra, and  an edgeedge with one Mn(2)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 44-59°. The Mn(3)-O(1) bond length is 2.06 Å. The Mn(3)-F(1) bond length is 2.26 Å. There is one shorter (2.09 Å) and one longer (2.11 Å) Mn(3)-F(2) bond length. There is one shorter (2.08 Å) and one longer (2.15 Å) Mn(3)-F(3) bond length. O(1) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. There are three inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms.