MnOF 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 O(2), and two equivalent F(1) atoms to form MnO4F2 octahedra that share corners with eight equivalent Mn(3)O3F3 octahedra and edges with two equivalent Mn(2)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the second Mn site, Mn(2) 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 eight equivalent Mn(3)O3F3 octahedra and edges with two equivalent Mn(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. In the third Mn site, Mn(3) is bonded to one O(1), two equivalent O(2), one F(1), and two equivalent F(2) atoms to form MnO3F3 octahedra that share corners with four equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(1)O4F2 octahedra, and edges with two equivalent Mn(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 46-54°. There are two 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(3) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms.
MnOF 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 O(2), and two equivalent F(1) atoms to form MnO4F2 octahedra that share corners with eight equivalent Mn(3)O3F3 octahedra and edges with two equivalent Mn(2)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. Both Mn(1)-O(1) bond lengths are 1.95 Å. Both Mn(1)-O(2) bond lengths are 2.11 Å. Both Mn(1)-F(1) bond lengths are 2.15 Å. In the second Mn site, Mn(2) 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 eight equivalent Mn(3)O3F3 octahedra and edges with two equivalent Mn(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. Both Mn(2)-O(1) bond lengths are 1.94 Å. Both Mn(2)-F(1) bond lengths are 2.14 Å. Both Mn(2)-F(2) bond lengths are 1.92 Å. In the third Mn site, Mn(3) is bonded to one O(1), two equivalent O(2), one F(1), and two equivalent F(2) atoms to form MnO3F3 octahedra that share corners with four equivalent Mn(2)O2F4 octahedra, corners with four equivalent Mn(1)O4F2 octahedra, and edges with two equivalent Mn(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 46-54°. The Mn(3)-O(1) bond length is 1.96 Å. There is one shorter (1.98 Å) and one longer (1.99 Å) Mn(3)-O(2) bond length. The Mn(3)-F(1) bond length is 2.02 Å. Both Mn(3)-F(2) bond lengths are 2.10 Å. There are two 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(3) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Mn(1), one Mn(2), and one Mn(3) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms.