The crystal structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one F(2), one F(3), one F(4), and one F(5) atom to form MgO2F4 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and edges with two equivalent Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-50°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form MnO2F4 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and  an edgeedge with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 47-59°. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(4), and one F(5) atom. In the third Mn site, Mn(3) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(5), one F(3), and one F(4) atom. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(5), one F(2), one F(4), one F(6), and one F(7) atom to form MnO2F4 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O2F4 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra, and  an edgeedge with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-47°. In the fifth Mn site, Mn(5) is bonded to one O(3), one O(5), one F(1), one F(2), one F(3), and one F(5) atom to form MnO2F4 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and edges with two equivalent Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the sixth Mn site, Mn(6) is bonded to one O(2), one O(3), one O(4), one F(3), one F(6), and one F(7) atom to form distorted MnO3F3 octahedra that share corners with two equivalent Mg(1)O2F4 octahedra, corners with two equivalent Mn(5)O2F4 octahedra, corners with three equivalent Mn(1)O2F4 octahedra, and corners with three equivalent Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-59°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(3) atom to form OMgMn3 tetrahedra that share  a cornercorner with one F(4)MgMn3 trigonal pyramid, corners with two equivalent O(3)MgMn3 trigonal pyramids, and  an edgeedge with one F(4)MgMn3 trigonal pyramid. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the third O site, O(3) is bonded to one Mg(1), one Mn(2), one Mn(5), and one Mn(6) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent O(1)MgMn3 tetrahedra and  an edgeedge with one F(4)MgMn3 trigonal pyramid. In the fourth O site, O(4) is bonded in a trigonal planar geometry to 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(3), one Mn(4), and one Mn(5) atom. There are seven 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(5) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form distorted FMgMn3 trigonal pyramids that share  a cornercorner with one O(1)MgMn3 tetrahedra,  an edgeedge with one O(1)MgMn3 tetrahedra, and  an edgeedge with one O(3)MgMn3 trigonal pyramid. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the sixth F site, F(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.308
_cell_length_b   6.103
_cell_length_c   5.893
_cell_angle_alpha   78.904
_cell_angle_beta   74.552
_cell_angle_gamma   70.447
_symmetry_Int_Tables_number   1
_cell_volume   237.177
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.518  0.492  0.967  1.0
  Mn  Mn1  1  0.845  0.689  0.642  1.0
  Mn  Mn2  1  0.688  0.307  0.397  1.0
  Mn  Mn3  1  0.315  0.755  0.581  1.0
  Mn  Mn4  1  0.158  0.318  0.312  1.0
  Mn  Mn5  1  0.516  0.005  0.027  1.0
  Mn  Mn6  1  0.995  0.025  0.982  1.0
  O  O7  1  0.599  0.567  0.616  1.0
  O  O8  1  0.978  0.202  0.237  1.0
  O  O9  1  0.700  0.165  0.074  1.0
  O  O10  1  0.030  0.837  0.733  1.0
  O  O11  1  0.346  0.022  0.347  1.0
  F  F12  1  0.627  0.033  0.661  1.0
  F  F13  1  0.306  0.363  0.964  1.0
  F  F14  1  0.306  0.859  0.945  1.0
  F  F15  1  0.374  0.478  0.337  1.0
  F  F16  1  0.686  0.650  0.032  1.0
  F  F17  1  0.035  0.326  0.664  1.0
  F  F18  1  0.997  0.659  0.284  1.0
[/CIF]
.
The crystal structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one F(2), one F(3), one F(4), and one F(5) atom to form MgO2F4 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and edges with two equivalent Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-50°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form MnO2F4 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and  an edgeedge with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 47-59°. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(4), and one F(5) atom. In the third Mn site, Mn(3) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(5), one F(3), and one F(4) atom. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(5), one F(2), one F(4), one F(6), and one F(7) atom to form MnO2F4 octahedra that share corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O2F4 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra, and  an edgeedge with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-47°. In the fifth Mn site, Mn(5) is bonded to one O(3), one O(5), one F(1), one F(2), one F(3), and one F(5) atom to form MnO2F4 octahedra that share corners with two equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(1)O2F4 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and edges with two equivalent Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the sixth Mn site, Mn(6) is bonded to one O(2), one O(3), one O(4), one F(3), one F(6), and one F(7) atom to form distorted MnO3F3 octahedra that share corners with two equivalent Mg(1)O2F4 octahedra, corners with two equivalent Mn(5)O2F4 octahedra, corners with three equivalent Mn(1)O2F4 octahedra, and corners with three equivalent Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 42-59°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(3) atom to form OMgMn3 tetrahedra that share  a cornercorner with one F(4)MgMn3 trigonal pyramid, corners with two equivalent O(3)MgMn3 trigonal pyramids, and  an edgeedge with one F(4)MgMn3 trigonal pyramid. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the third O site, O(3) is bonded to one Mg(1), one Mn(2), one Mn(5), and one Mn(6) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent O(1)MgMn3 tetrahedra and  an edgeedge with one F(4)MgMn3 trigonal pyramid. In the fourth O site, O(4) is bonded in a trigonal planar geometry to 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(3), one Mn(4), and one Mn(5) atom. There are seven 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(5) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form distorted FMgMn3 trigonal pyramids that share  a cornercorner with one O(1)MgMn3 tetrahedra,  an edgeedge with one O(1)MgMn3 tetrahedra, and  an edgeedge with one O(3)MgMn3 trigonal pyramid. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the sixth F site, F(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.308
_cell_length_b   6.103
_cell_length_c   5.893
_cell_angle_alpha   78.904
_cell_angle_beta   74.552
_cell_angle_gamma   70.447
_symmetry_Int_Tables_number   1
_cell_volume   237.177
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.518  0.492  0.967  1.0
  Mn  Mn1  1  0.845  0.689  0.642  1.0
  Mn  Mn2  1  0.688  0.307  0.397  1.0
  Mn  Mn3  1  0.315  0.755  0.581  1.0
  Mn  Mn4  1  0.158  0.318  0.312  1.0
  Mn  Mn5  1  0.516  0.005  0.027  1.0
  Mn  Mn6  1  0.995  0.025  0.982  1.0
  O  O7  1  0.599  0.567  0.616  1.0
  O  O8  1  0.978  0.202  0.237  1.0
  O  O9  1  0.700  0.165  0.074  1.0
  O  O10  1  0.030  0.837  0.733  1.0
  O  O11  1  0.346  0.022  0.347  1.0
  F  F12  1  0.627  0.033  0.661  1.0
  F  F13  1  0.306  0.363  0.964  1.0
  F  F14  1  0.306  0.859  0.945  1.0
  F  F15  1  0.374  0.478  0.337  1.0
  F  F16  1  0.686  0.650  0.032  1.0
  F  F17  1  0.035  0.326  0.664  1.0
  F  F18  1  0.997  0.659  0.284  1.0
[/CIF]
.