The material described by MgMn8O13F3 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(11), one O(13), one O(2), one O(4), and one O(6) atom to form MgO6 octahedra that share corners with two equivalent Mn(7)O5F octahedra,  an edgeedge with one Mn(3)O4F2 octahedra,  an edgeedge with one Mn(4)O5F octahedra, edges with two equivalent Mn(5)O5F octahedra, and  an edgeedge with one Mn(8)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 51-53°. There are eight inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(7), and one F(1) atom. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one F(1), and one F(2) atom. In the third Mn site, Mn(3) is bonded to one O(1), one O(10), one O(13), one O(7), one F(2), and one F(3) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mn(5)O5F octahedra, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-59°. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(5), one O(6), one O(8), one O(9), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mn(5)O5F octahedra, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(4), one O(6), one O(8), and one F(3) atom to form MnO5F octahedra that share corners with two equivalent Mn(7)O5F octahedra,  a cornercorner with one Mn(8)O4F trigonal bipyramid,  an edgeedge with one Mn(3)O4F2 octahedra,  an edgeedge with one Mn(4)O5F octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-48°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(12), one O(3), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(4)O5F octahedra. The corner-sharing octahedral tilt angles range from 49-56°. In the seventh Mn site, Mn(7) is bonded to one O(11), one O(12), one O(13), one O(3), one O(8), and one F(3) atom to form MnO5F octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, and  an edgeedge with one Mn(8)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 35-59°. In the eighth Mn site, Mn(8) is bonded to one O(12), one O(13), one O(6), one O(9), and one F(2) atom to form distorted MnO4F trigonal bipyramids that share  a cornercorner with one Mn(5)O5F octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and  an edgeedge with one Mn(7)O5F octahedra. The corner-sharing octahedral tilt angles range from 35-70°. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), and one Mn(5) atom. In the second O site, O(2) 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 third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(6), and one Mn(7) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(4), one Mn(5), and one Mn(8) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(4), one Mn(5), and one Mn(7) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mn(4), one Mn(6), and one Mn(8) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(4), and one Mn(7) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Mn(6), one Mn(7), and one Mn(8) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal pyramidal geometry to one Mg(1), one Mn(3), one Mn(7), and one Mn(8) atom. There are three 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(4) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one Mn(8) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(7) atom. is represented by the CIF card [CIF]
data_MgMn8O13F3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.114
_cell_length_b   5.729
_cell_length_c   6.636
_cell_angle_alpha   88.788
_cell_angle_beta   93.152
_cell_angle_gamma   84.951
_symmetry_Int_Tables_number   1
_cell_volume   268.898
_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  0.111  0.401  0.878  1.0
  Mn  Mn1  1  0.408  0.362  0.139  1.0
  Mn  Mn2  1  0.135  0.710  0.386  1.0
  Mn  Mn3  1  0.860  0.142  0.124  1.0
  Mn  Mn4  1  0.382  0.122  0.636  1.0
  Mn  Mn5  1  0.139  0.876  0.875  1.0
  Mn  Mn6  1  0.625  0.845  0.367  1.0
  Mn  Mn7  1  0.619  0.641  0.865  1.0
  Mn  Mn8  1  0.835  0.317  0.602  1.0
  O  O9  1  0.127  0.116  0.073  1.0
  O  O10  1  0.187  0.623  0.097  1.0
  O  O11  1  0.591  0.619  0.153  1.0
  O  O12  1  0.098  0.659  0.666  1.0
  O  O13  1  0.358  0.896  0.423  1.0
  O  O14  1  0.100  0.134  0.678  1.0
  O  O15  1  0.598  0.108  0.170  1.0
  O  O16  1  0.400  0.887  0.838  1.0
  O  O17  1  0.637  0.076  0.582  1.0
  O  O18  1  0.889  0.892  0.332  1.0
  O  O19  1  0.404  0.360  0.847  1.0
  O  O20  1  0.661  0.594  0.579  1.0
  O  O21  1  0.824  0.377  0.891  1.0
  F  F22  1  0.333  0.379  0.425  1.0
  F  F23  1  0.934  0.392  0.345  1.0
  F  F24  1  0.866  0.865  0.907  1.0
[/CIF]
.
The material described by MgMn8O13F3 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(11), one O(13), one O(2), one O(4), and one O(6) atom to form MgO6 octahedra that share corners with two equivalent Mn(7)O5F octahedra,  an edgeedge with one Mn(3)O4F2 octahedra,  an edgeedge with one Mn(4)O5F octahedra, edges with two equivalent Mn(5)O5F octahedra, and  an edgeedge with one Mn(8)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 51-53°. There are eight inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(7), and one F(1) atom. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one F(1), and one F(2) atom. In the third Mn site, Mn(3) is bonded to one O(1), one O(10), one O(13), one O(7), one F(2), and one F(3) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mn(5)O5F octahedra, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-59°. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(5), one O(6), one O(8), one O(9), and one F(1) atom to form MnO5F octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mn(5)O5F octahedra, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(4), one O(6), one O(8), and one F(3) atom to form MnO5F octahedra that share corners with two equivalent Mn(7)O5F octahedra,  a cornercorner with one Mn(8)O4F trigonal bipyramid,  an edgeedge with one Mn(3)O4F2 octahedra,  an edgeedge with one Mn(4)O5F octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-48°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(12), one O(3), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(7)O5F octahedra, corners with two equivalent Mn(8)O4F trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(4)O5F octahedra. The corner-sharing octahedral tilt angles range from 49-56°. In the seventh Mn site, Mn(7) is bonded to one O(11), one O(12), one O(13), one O(3), one O(8), and one F(3) atom to form MnO5F octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(5)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra, and  an edgeedge with one Mn(8)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 35-59°. In the eighth Mn site, Mn(8) is bonded to one O(12), one O(13), one O(6), one O(9), and one F(2) atom to form distorted MnO4F trigonal bipyramids that share  a cornercorner with one Mn(5)O5F octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(4)O5F octahedra, corners with two equivalent Mn(6)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and  an edgeedge with one Mn(7)O5F octahedra. The corner-sharing octahedral tilt angles range from 35-70°. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), and one Mn(5) atom. In the second O site, O(2) 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 third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(6), and one Mn(7) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mn(2), one Mn(4), and one Mn(6) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(4), one Mn(5), and one Mn(8) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(4), one Mn(5), and one Mn(7) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mn(4), one Mn(6), and one Mn(8) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(4), and one Mn(7) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Mn(6), one Mn(7), and one Mn(8) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal pyramidal geometry to one Mg(1), one Mn(3), one Mn(7), and one Mn(8) atom. There are three 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(4) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Mn(2), one Mn(3), and one Mn(8) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(5), and one Mn(7) atom. is represented by the CIF card [CIF]
data_MgMn8O13F3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.114
_cell_length_b   5.729
_cell_length_c   6.636
_cell_angle_alpha   88.788
_cell_angle_beta   93.152
_cell_angle_gamma   84.951
_symmetry_Int_Tables_number   1
_cell_volume   268.898
_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  0.111  0.401  0.878  1.0
  Mn  Mn1  1  0.408  0.362  0.139  1.0
  Mn  Mn2  1  0.135  0.710  0.386  1.0
  Mn  Mn3  1  0.860  0.142  0.124  1.0
  Mn  Mn4  1  0.382  0.122  0.636  1.0
  Mn  Mn5  1  0.139  0.876  0.875  1.0
  Mn  Mn6  1  0.625  0.845  0.367  1.0
  Mn  Mn7  1  0.619  0.641  0.865  1.0
  Mn  Mn8  1  0.835  0.317  0.602  1.0
  O  O9  1  0.127  0.116  0.073  1.0
  O  O10  1  0.187  0.623  0.097  1.0
  O  O11  1  0.591  0.619  0.153  1.0
  O  O12  1  0.098  0.659  0.666  1.0
  O  O13  1  0.358  0.896  0.423  1.0
  O  O14  1  0.100  0.134  0.678  1.0
  O  O15  1  0.598  0.108  0.170  1.0
  O  O16  1  0.400  0.887  0.838  1.0
  O  O17  1  0.637  0.076  0.582  1.0
  O  O18  1  0.889  0.892  0.332  1.0
  O  O19  1  0.404  0.360  0.847  1.0
  O  O20  1  0.661  0.594  0.579  1.0
  O  O21  1  0.824  0.377  0.891  1.0
  F  F22  1  0.333  0.379  0.425  1.0
  F  F23  1  0.934  0.392  0.345  1.0
  F  F24  1  0.866  0.865  0.907  1.0
[/CIF]
.