The structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one O(5), one F(1), one F(5), and one F(7) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(5)O2F4 octahedra, corners with two equivalent Mn(4)O2F4 octahedra,  a cornercorner with one Mn(1)OF4 trigonal bipyramid,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, edges with two equivalent Mn(2)O3F3 octahedra,  an edgeedge with one Mn(1)OF4 trigonal bipyramid, and  a faceface with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 35-54°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form distorted MnOF4 trigonal bipyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(3)O3F3 octahedra, corners with two equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O3F3 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 50-66°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one F(1), one F(4), and one F(5) atom to form MnO3F3 octahedra that share corners with two equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(5)O2F4 octahedra, corners with two equivalent Mn(1)OF4 trigonal bipyramids,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and edges with two equivalent Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-68°. In the third Mn site, Mn(3) is bonded to one O(1), one O(4), one O(5), one F(2), one F(3), and one F(4) atom to form distorted MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(5)O2F4 octahedra,  a cornercorner with one Mn(1)OF4 trigonal bipyramid,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(2)O3F3 octahedra, and  an edgeedge with one Mn(6)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 31-61°. 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 distorted MnO2F4 octahedra that share corners with two equivalent Mg(1)O3F3 octahedra, corners with two equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(3)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(5)O2F4 octahedra, and  an edgeedge with one Mn(1)OF4 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 31-61°. 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  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(3)O3F3 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra,  an edgeedge with one Mn(1)OF4 trigonal bipyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 33-68°. 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 MnO3F3 octahedra that share corners with two equivalent Mn(5)O2F4 octahedra, corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(1)OF4 trigonal bipyramids,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(2)O3F3 octahedra, and  an edgeedge with one Mn(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-58°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(2), and one Mn(3) atom. In the second O site, O(2) is bonded in a distorted 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  a cornercorner with one F(5)MgMn3 trigonal pyramid,  an edgeedge with one F(5)MgMn3 trigonal pyramid, and  an edgeedge with one F(7)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 distorted rectangular see-saw-like geometry to one Mg(1), 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 see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fifth F site, F(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom to form distorted FMgMn3 trigonal pyramids that share  a cornercorner with one O(3)MgMn3 trigonal pyramid, corners with two equivalent F(7)MgMn3 trigonal pyramids, and  an edgeedge with one O(3)MgMn3 trigonal pyramid. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom to form distorted FMgMn3 trigonal pyramids that share corners with two equivalent F(5)MgMn3 trigonal pyramids and  an edgeedge with one O(3)MgMn3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.729
_cell_length_b   6.145
_cell_length_c   5.989
_cell_angle_alpha   73.360
_cell_angle_beta   69.814
_cell_angle_gamma   67.281
_symmetry_Int_Tables_number   1
_cell_volume   242.367
_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  0.666  0.812  0.351  1.0
  Mn  Mn1  1  0.894  0.682  0.720  1.0
  Mn  Mn2  1  0.655  0.325  0.325  1.0
  Mn  Mn3  1  0.329  0.691  0.646  1.0
  Mn  Mn4  1  0.140  0.281  0.354  1.0
  Mn  Mn5  1  0.486  0.057  0.981  1.0
  Mn  Mn6  1  0.994  0.028  0.007  1.0
  O  O7  1  0.604  0.521  0.555  1.0
  O  O8  1  0.936  0.216  0.247  1.0
  O  O9  1  0.707  0.106  0.104  1.0
  O  O10  1  0.055  0.842  0.764  1.0
  O  O11  1  0.370  0.953  0.374  1.0
  F  F12  1  0.648  0.974  0.621  1.0
  F  F13  1  0.300  0.409  0.942  1.0
  F  F14  1  0.283  0.925  0.939  1.0
  F  F15  1  0.365  0.426  0.398  1.0
  F  F16  1  0.684  0.678  0.055  1.0
  F  F17  1  0.014  0.324  0.718  1.0
  F  F18  1  0.953  0.677  0.337  1.0
[/CIF]
.
The structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one O(5), one F(1), one F(5), and one F(7) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(5)O2F4 octahedra, corners with two equivalent Mn(4)O2F4 octahedra,  a cornercorner with one Mn(1)OF4 trigonal bipyramid,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, edges with two equivalent Mn(2)O3F3 octahedra,  an edgeedge with one Mn(1)OF4 trigonal bipyramid, and  a faceface with one Mn(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 35-54°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form distorted MnOF4 trigonal bipyramids that share  a cornercorner with one Mg(1)O3F3 octahedra,  a cornercorner with one Mn(3)O3F3 octahedra, corners with two equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mg(1)O3F3 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 50-66°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one F(1), one F(4), and one F(5) atom to form MnO3F3 octahedra that share corners with two equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(5)O2F4 octahedra, corners with two equivalent Mn(1)OF4 trigonal bipyramids,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and edges with two equivalent Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-68°. In the third Mn site, Mn(3) is bonded to one O(1), one O(4), one O(5), one F(2), one F(3), and one F(4) atom to form distorted MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(5)O2F4 octahedra,  a cornercorner with one Mn(1)OF4 trigonal bipyramid,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(2)O3F3 octahedra, and  an edgeedge with one Mn(6)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 31-61°. 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 distorted MnO2F4 octahedra that share corners with two equivalent Mg(1)O3F3 octahedra, corners with two equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(3)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(5)O2F4 octahedra, and  an edgeedge with one Mn(1)OF4 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 31-61°. 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  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(3)O3F3 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra,  an edgeedge with one Mn(1)OF4 trigonal bipyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 33-68°. 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 MnO3F3 octahedra that share corners with two equivalent Mn(5)O2F4 octahedra, corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(1)OF4 trigonal bipyramids,  an edgeedge with one Mg(1)O3F3 octahedra,  an edgeedge with one Mn(2)O3F3 octahedra, and  an edgeedge with one Mn(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-58°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(2), and one Mn(3) atom. In the second O site, O(2) is bonded in a distorted 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  a cornercorner with one F(5)MgMn3 trigonal pyramid,  an edgeedge with one F(5)MgMn3 trigonal pyramid, and  an edgeedge with one F(7)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 distorted rectangular see-saw-like geometry to one Mg(1), 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 see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(4), and one Mn(5) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to one Mn(3), one Mn(5), and one Mn(6) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fifth F site, F(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom to form distorted FMgMn3 trigonal pyramids that share  a cornercorner with one O(3)MgMn3 trigonal pyramid, corners with two equivalent F(7)MgMn3 trigonal pyramids, and  an edgeedge with one O(3)MgMn3 trigonal pyramid. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom to form distorted FMgMn3 trigonal pyramids that share corners with two equivalent F(5)MgMn3 trigonal pyramids and  an edgeedge with one O(3)MgMn3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.729
_cell_length_b   6.145
_cell_length_c   5.989
_cell_angle_alpha   73.360
_cell_angle_beta   69.814
_cell_angle_gamma   67.281
_symmetry_Int_Tables_number   1
_cell_volume   242.367
_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  0.666  0.812  0.351  1.0
  Mn  Mn1  1  0.894  0.682  0.720  1.0
  Mn  Mn2  1  0.655  0.325  0.325  1.0
  Mn  Mn3  1  0.329  0.691  0.646  1.0
  Mn  Mn4  1  0.140  0.281  0.354  1.0
  Mn  Mn5  1  0.486  0.057  0.981  1.0
  Mn  Mn6  1  0.994  0.028  0.007  1.0
  O  O7  1  0.604  0.521  0.555  1.0
  O  O8  1  0.936  0.216  0.247  1.0
  O  O9  1  0.707  0.106  0.104  1.0
  O  O10  1  0.055  0.842  0.764  1.0
  O  O11  1  0.370  0.953  0.374  1.0
  F  F12  1  0.648  0.974  0.621  1.0
  F  F13  1  0.300  0.409  0.942  1.0
  F  F14  1  0.283  0.925  0.939  1.0
  F  F15  1  0.365  0.426  0.398  1.0
  F  F16  1  0.684  0.678  0.055  1.0
  F  F17  1  0.014  0.324  0.718  1.0
  F  F18  1  0.953  0.677  0.337  1.0
[/CIF]
.