The crystal structure described by MgMn6O5F7 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(4) atoms to form distorted MgO4F2 octahedra that share corners with two equivalent Mn(3)O3F3 octahedra, corners with four equivalent Mn(4)O2F4 octahedra, and edges with two equivalent Mn(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 29-61°. There are four 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 distorted MnO4F2 octahedra that share corners with two equivalent Mn(3)O3F3 octahedra, corners with four equivalent Mn(4)O2F4 octahedra, and edges with two equivalent Mg(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 34-56°. In the second Mn site, Mn(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one F(3), two equivalent F(1), and two equivalent F(4) atoms. In the third Mn site, Mn(3) is bonded to one O(3), two equivalent O(1), one F(2), and two equivalent F(3) atoms to form MnO3F3 octahedra that share corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra, and corners with six equivalent Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(3), one F(1), one F(2), one F(3), and one F(4) atom to form distorted MnO2F4 octahedra that share corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra, corners with three equivalent Mn(3)O3F3 octahedra, and  an edgeedge with one Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 29-61°. There are three 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 O(1)MgMn3 tetrahedra, corners with two equivalent F(1)Mn4 trigonal pyramids, corners with five equivalent O(2)MgMn3 trigonal pyramids,  an edgeedge with one O(1)MgMn3 tetrahedra, and  an edgeedge with one F(1)Mn4 trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(4) atom to form OMgMn3 trigonal pyramids that share corners with five equivalent O(1)MgMn3 tetrahedra,  a cornercorner with one F(1)Mn4 trigonal pyramid,  an edgeedge with one O(2)MgMn3 trigonal pyramid, and edges with two equivalent F(1)Mn4 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(3) and two equivalent Mn(4) atoms. There are four inequivalent F sites. In the first F site, F(1) is bonded to one Mn(1), one Mn(4), and two equivalent Mn(2) atoms to form distorted FMn4 trigonal pyramids that share corners with two equivalent O(1)MgMn3 tetrahedra,  a cornercorner with one O(2)MgMn3 trigonal pyramid, corners with three equivalent F(1)Mn4 trigonal pyramids,  an edgeedge with one O(1)MgMn3 tetrahedra, and edges with two equivalent O(2)MgMn3 trigonal pyramids. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(3) and two equivalent Mn(4) atoms. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(4), and two equivalent Mn(2) atoms. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.621
_cell_length_b   6.264
_cell_length_c   6.265
_cell_angle_alpha   63.096
_cell_angle_beta   79.717
_cell_angle_gamma   79.714
_symmetry_Int_Tables_number   1
_cell_volume   226.575
_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  0.833  0.414  0.919  1.0
  Mn  Mn1  1  0.833  0.893  0.441  1.0
  Mn  Mn2  1  0.719  0.408  0.442  1.0
  Mn  Mn3  1  0.333  0.680  0.654  1.0
  Mn  Mn4  1  0.193  0.286  0.348  1.0
  Mn  Mn5  1  0.473  0.985  0.047  1.0
  Mn  Mn6  1  0.948  0.891  0.926  1.0
  O  O7  1  0.649  0.627  0.618  1.0
  O  O8  1  0.936  0.212  0.289  1.0
  O  O9  1  0.731  0.044  0.121  1.0
  O  O10  1  0.017  0.716  0.707  1.0
  O  O11  1  0.333  0.969  0.365  1.0
  F  F12  1  0.655  0.056  0.706  1.0
  F  F13  1  0.333  0.374  0.959  1.0
  F  F14  1  0.282  0.877  0.901  1.0
  F  F15  1  0.384  0.432  0.456  1.0
  F  F16  1  0.675  0.624  0.073  1.0
  F  F17  1  0.992  0.261  0.710  1.0
  F  F18  1  0.012  0.627  0.277  1.0
[/CIF]
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The crystal structure described by MgMn6O5F7 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(4) atoms to form distorted MgO4F2 octahedra that share corners with two equivalent Mn(3)O3F3 octahedra, corners with four equivalent Mn(4)O2F4 octahedra, and edges with two equivalent Mn(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 29-61°. There are four 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 distorted MnO4F2 octahedra that share corners with two equivalent Mn(3)O3F3 octahedra, corners with four equivalent Mn(4)O2F4 octahedra, and edges with two equivalent Mg(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 34-56°. In the second Mn site, Mn(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one F(3), two equivalent F(1), and two equivalent F(4) atoms. In the third Mn site, Mn(3) is bonded to one O(3), two equivalent O(1), one F(2), and two equivalent F(3) atoms to form MnO3F3 octahedra that share corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra, and corners with six equivalent Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(3), one F(1), one F(2), one F(3), and one F(4) atom to form distorted MnO2F4 octahedra that share corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra, corners with three equivalent Mn(3)O3F3 octahedra, and  an edgeedge with one Mn(4)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 29-61°. There are three 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 O(1)MgMn3 tetrahedra, corners with two equivalent F(1)Mn4 trigonal pyramids, corners with five equivalent O(2)MgMn3 trigonal pyramids,  an edgeedge with one O(1)MgMn3 tetrahedra, and  an edgeedge with one F(1)Mn4 trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(4) atom to form OMgMn3 trigonal pyramids that share corners with five equivalent O(1)MgMn3 tetrahedra,  a cornercorner with one F(1)Mn4 trigonal pyramid,  an edgeedge with one O(2)MgMn3 trigonal pyramid, and edges with two equivalent F(1)Mn4 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(3) and two equivalent Mn(4) atoms. There are four inequivalent F sites. In the first F site, F(1) is bonded to one Mn(1), one Mn(4), and two equivalent Mn(2) atoms to form distorted FMn4 trigonal pyramids that share corners with two equivalent O(1)MgMn3 tetrahedra,  a cornercorner with one O(2)MgMn3 trigonal pyramid, corners with three equivalent F(1)Mn4 trigonal pyramids,  an edgeedge with one O(1)MgMn3 tetrahedra, and edges with two equivalent O(2)MgMn3 trigonal pyramids. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(3) and two equivalent Mn(4) atoms. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(4), and two equivalent Mn(2) atoms. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.621
_cell_length_b   6.264
_cell_length_c   6.265
_cell_angle_alpha   63.096
_cell_angle_beta   79.717
_cell_angle_gamma   79.714
_symmetry_Int_Tables_number   1
_cell_volume   226.575
_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  0.833  0.414  0.919  1.0
  Mn  Mn1  1  0.833  0.893  0.441  1.0
  Mn  Mn2  1  0.719  0.408  0.442  1.0
  Mn  Mn3  1  0.333  0.680  0.654  1.0
  Mn  Mn4  1  0.193  0.286  0.348  1.0
  Mn  Mn5  1  0.473  0.985  0.047  1.0
  Mn  Mn6  1  0.948  0.891  0.926  1.0
  O  O7  1  0.649  0.627  0.618  1.0
  O  O8  1  0.936  0.212  0.289  1.0
  O  O9  1  0.731  0.044  0.121  1.0
  O  O10  1  0.017  0.716  0.707  1.0
  O  O11  1  0.333  0.969  0.365  1.0
  F  F12  1  0.655  0.056  0.706  1.0
  F  F13  1  0.333  0.374  0.959  1.0
  F  F14  1  0.282  0.877  0.901  1.0
  F  F15  1  0.384  0.432  0.456  1.0
  F  F16  1  0.675  0.624  0.073  1.0
  F  F17  1  0.992  0.261  0.710  1.0
  F  F18  1  0.012  0.627  0.277  1.0
[/CIF]
.