The material described by MgMn6(O5F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(7), one O(8), one O(9), one F(1), and one F(2) atom to form MgO4F2 octahedra that share corners with two equivalent Mn(1)O4F square pyramids,  a cornercorner with one Mn(5)O5 trigonal bipyramid,  an edgeedge with one Mn(6)O4F2 octahedra,  an edgeedge with one Mn(2)O6 octahedra, edges with two equivalent Mn(3)O5F octahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(6), one O(9), and one F(2) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mn(3)O5F octahedra, corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(6)O4F2 octahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 40-60°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(1)O4F square pyramids, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O4F2 octahedra,  an edgeedge with one Mn(6)O4F2 octahedra, and  an edgeedge with one Mn(3)O5F octahedra. In the third Mn site, Mn(3) is bonded to one O(2), one O(3), one O(6), one O(7), one O(8), and one F(1) atom to form MnO5F octahedra that share  a cornercorner with one Mn(1)O4F square pyramid, corners with two equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(6)O4F2 octahedra,  an edgeedge with one Mn(2)O6 octahedra, and edges with two equivalent Mg(1)O4F2 octahedra. In the fourth Mn site, Mn(4) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(8), and one F(2) atom. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(8), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4F2 octahedra,  a cornercorner with one Mn(6)O4F2 octahedra, corners with two equivalent Mn(3)O5F octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Mg(1)O4F2 octahedra, and  an edgeedge with one Mn(1)O4F square pyramid. The corner-sharing octahedral tilt angles range from 49-61°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(4), one O(5), one O(6), one F(1), and one F(2) atom to form MnO4F2 octahedra that share corners with three equivalent Mn(1)O4F square pyramids,  a cornercorner with one Mn(5)O5 trigonal bipyramid,  an edgeedge with one Mg(1)O4F2 octahedra,  an edgeedge with one Mn(3)O5F octahedra, and  an edgeedge with one Mn(2)O6 octahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(5) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent O(8)MgMn3 trigonal pyramids,  an edgeedge with one O(8)MgMn3 trigonal pyramid, and  an edgeedge with one F(2)MgMn3 trigonal pyramid. In the third O site, O(3) is bonded in a water-like geometry to one Mn(2) and one Mn(3) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(3) atom. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(5) atom to form OMgMn3 trigonal pyramids that share corners with two equivalent O(2)MgMn3 trigonal pyramids, corners with two equivalent F(2)MgMn3 trigonal pyramids, and  an edgeedge with one O(2)MgMn3 trigonal pyramid. In the ninth O site, O(9) is bonded in a see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(3), and one Mn(6) atom. In the second F site, F(2) 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 O(8)MgMn3 trigonal pyramids and  an edgeedge with one O(2)MgMn3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn6(O5F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.209
_cell_length_b   5.726
_cell_length_c   5.874
_cell_angle_alpha   67.375
_cell_angle_beta   63.357
_cell_angle_gamma   64.941
_symmetry_Int_Tables_number   1
_cell_volume   216.992
_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  0.345  0.652  0.158  1.0
  Mn  Mn1  1  0.854  0.683  0.712  1.0
  Mn  Mn2  1  0.663  0.332  0.356  1.0
  Mn  Mn3  1  0.333  0.655  0.659  1.0
  Mn  Mn4  1  0.106  0.292  0.309  1.0
  Mn  Mn5  1  0.531  0.032  0.031  1.0
  Mn  Mn6  1  0.972  0.034  0.975  1.0
  O  O7  1  0.689  0.044  0.666  1.0
  O  O8  1  0.345  0.392  0.999  1.0
  O  O9  1  0.598  0.582  0.539  1.0
  O  O10  1  0.933  0.257  0.182  1.0
  O  O11  1  0.711  0.089  0.148  1.0
  O  O12  1  0.046  0.765  0.798  1.0
  O  O13  1  0.388  0.405  0.487  1.0
  O  O14  1  0.314  0.934  0.334  1.0
  O  O15  1  0.629  0.643  0.039  1.0
  O  O16  1  0.970  0.319  0.684  1.0
  F  F17  1  0.275  0.925  0.857  1.0
  F  F18  1  0.040  0.715  0.305  1.0
[/CIF]
.
The material described by MgMn6(O5F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(7), one O(8), one O(9), one F(1), and one F(2) atom to form MgO4F2 octahedra that share corners with two equivalent Mn(1)O4F square pyramids,  a cornercorner with one Mn(5)O5 trigonal bipyramid,  an edgeedge with one Mn(6)O4F2 octahedra,  an edgeedge with one Mn(2)O6 octahedra, edges with two equivalent Mn(3)O5F octahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(6), one O(9), and one F(2) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mn(3)O5F octahedra, corners with two equivalent Mg(1)O4F2 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(6)O4F2 octahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 40-60°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(1)O4F square pyramids, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O4F2 octahedra,  an edgeedge with one Mn(6)O4F2 octahedra, and  an edgeedge with one Mn(3)O5F octahedra. In the third Mn site, Mn(3) is bonded to one O(2), one O(3), one O(6), one O(7), one O(8), and one F(1) atom to form MnO5F octahedra that share  a cornercorner with one Mn(1)O4F square pyramid, corners with two equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(6)O4F2 octahedra,  an edgeedge with one Mn(2)O6 octahedra, and edges with two equivalent Mg(1)O4F2 octahedra. In the fourth Mn site, Mn(4) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(8), and one F(2) atom. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(8), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4F2 octahedra,  a cornercorner with one Mn(6)O4F2 octahedra, corners with two equivalent Mn(3)O5F octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Mg(1)O4F2 octahedra, and  an edgeedge with one Mn(1)O4F square pyramid. The corner-sharing octahedral tilt angles range from 49-61°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(4), one O(5), one O(6), one F(1), and one F(2) atom to form MnO4F2 octahedra that share corners with three equivalent Mn(1)O4F square pyramids,  a cornercorner with one Mn(5)O5 trigonal bipyramid,  an edgeedge with one Mg(1)O4F2 octahedra,  an edgeedge with one Mn(3)O5F octahedra, and  an edgeedge with one Mn(2)O6 octahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(5) atom to form distorted OMgMn3 trigonal pyramids that share corners with two equivalent O(8)MgMn3 trigonal pyramids,  an edgeedge with one O(8)MgMn3 trigonal pyramid, and  an edgeedge with one F(2)MgMn3 trigonal pyramid. In the third O site, O(3) is bonded in a water-like geometry to one Mn(2) and one Mn(3) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(3) atom. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(5) atom to form OMgMn3 trigonal pyramids that share corners with two equivalent O(2)MgMn3 trigonal pyramids, corners with two equivalent F(2)MgMn3 trigonal pyramids, and  an edgeedge with one O(2)MgMn3 trigonal pyramid. In the ninth O site, O(9) is bonded in a see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(3), and one Mn(6) atom. In the second F site, F(2) 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 O(8)MgMn3 trigonal pyramids and  an edgeedge with one O(2)MgMn3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn6(O5F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.209
_cell_length_b   5.726
_cell_length_c   5.874
_cell_angle_alpha   67.375
_cell_angle_beta   63.357
_cell_angle_gamma   64.941
_symmetry_Int_Tables_number   1
_cell_volume   216.992
_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  0.345  0.652  0.158  1.0
  Mn  Mn1  1  0.854  0.683  0.712  1.0
  Mn  Mn2  1  0.663  0.332  0.356  1.0
  Mn  Mn3  1  0.333  0.655  0.659  1.0
  Mn  Mn4  1  0.106  0.292  0.309  1.0
  Mn  Mn5  1  0.531  0.032  0.031  1.0
  Mn  Mn6  1  0.972  0.034  0.975  1.0
  O  O7  1  0.689  0.044  0.666  1.0
  O  O8  1  0.345  0.392  0.999  1.0
  O  O9  1  0.598  0.582  0.539  1.0
  O  O10  1  0.933  0.257  0.182  1.0
  O  O11  1  0.711  0.089  0.148  1.0
  O  O12  1  0.046  0.765  0.798  1.0
  O  O13  1  0.388  0.405  0.487  1.0
  O  O14  1  0.314  0.934  0.334  1.0
  O  O15  1  0.629  0.643  0.039  1.0
  O  O16  1  0.970  0.319  0.684  1.0
  F  F17  1  0.275  0.925  0.857  1.0
  F  F18  1  0.040  0.715  0.305  1.0
[/CIF]
.