The compound described by MgMn6(O5F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(5), one O(8), and one F(2) atom to form distorted MgO3F tetrahedra that share  a cornercorner with one Mn(1)O5F octahedra,  a cornercorner with one Mn(2)O5F octahedra, corners with two equivalent Mn(3)O4F2 octahedra,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(6)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-61°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(9), and one F(2) atom to form MnO5F octahedra that share  a cornercorner with one Mg(1)O3F tetrahedra, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(2)O5F octahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(4), one O(7), one O(9), and one F(1) atom to form MnO5F octahedra that share  a cornercorner with one Mg(1)O3F tetrahedra, corners with three equivalent Mn(6)O4F trigonal bipyramids, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(1)O5F octahedra. In the third Mn site, Mn(3) is bonded to one O(10), one O(2), one O(5), one O(8), one F(1), and one F(2) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mg(1)O3F tetrahedra, corners with three equivalent Mn(6)O4F trigonal bipyramids,  an edgeedge with one Mn(1)O5F octahedra,  an edgeedge with one Mn(2)O5F octahedra, and  an edgeedge with one Mg(1)O3F tetrahedra. In the fourth Mn site, Mn(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and one O(8) atom. In the fifth Mn site, Mn(5) is bonded to one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share corners with three equivalent Mn(1)O5F octahedra, corners with three equivalent Mn(2)O5F octahedra, and  an edgeedge with one Mn(6)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 42-54°. In the sixth Mn site, Mn(6) is bonded to one O(4), one O(5), one O(7), one O(8), and one F(1) atom to form distorted MnO4F trigonal bipyramids that share corners with three equivalent Mn(3)O4F2 octahedra, corners with three equivalent Mn(2)O5F octahedra,  an edgeedge with one Mg(1)O3F tetrahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 32-57°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(5) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(6) atom to form a mixture of distorted corner and face-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(6) atom to form a mixture of distorted corner and face-sharing OMgMn3 trigonal pyramids. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a T-shaped geometry to one Mg(1), one Mn(2), and one Mn(3) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Mn(2), one Mn(3), and one Mn(6) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one Mn(3) atom. is represented by the CIF file [CIF]
data_MgMn6(O5F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   5.160
_cell_length_c   8.824
_cell_angle_alpha   92.342
_cell_angle_beta   87.237
_cell_angle_gamma   104.517
_symmetry_Int_Tables_number   1
_cell_volume   227.937
_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  0.697  0.296  0.677  1.0
  Mn  Mn1  1  0.001  0.001  0.007  1.0
  Mn  Mn2  1  0.989  0.009  0.321  1.0
  Mn  Mn3  1  0.033  0.965  0.659  1.0
  Mn  Mn4  1  0.414  0.596  0.857  1.0
  Mn  Mn5  1  0.553  0.445  0.163  1.0
  Mn  Mn6  1  0.451  0.546  0.490  1.0
  O  O7  1  0.144  0.858  0.155  1.0
  O  O8  1  0.166  0.830  0.832  1.0
  O  O9  1  0.312  0.305  0.998  1.0
  O  O10  1  0.320  0.287  0.331  1.0
  O  O11  1  0.314  0.302  0.665  1.0
  O  O12  1  0.689  0.701  0.005  1.0
  O  O13  1  0.711  0.680  0.331  1.0
  O  O14  1  0.688  0.685  0.670  1.0
  O  O15  1  0.837  0.168  0.173  1.0
  O  O16  1  0.865  0.132  0.513  1.0
  F  F17  1  0.198  0.797  0.471  1.0
  F  F18  1  0.827  0.175  0.851  1.0
[/CIF]
.
The compound described by MgMn6(O5F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(5), one O(8), and one F(2) atom to form distorted MgO3F tetrahedra that share  a cornercorner with one Mn(1)O5F octahedra,  a cornercorner with one Mn(2)O5F octahedra, corners with two equivalent Mn(3)O4F2 octahedra,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(6)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-61°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(9), and one F(2) atom to form MnO5F octahedra that share  a cornercorner with one Mg(1)O3F tetrahedra, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(2)O5F octahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(4), one O(7), one O(9), and one F(1) atom to form MnO5F octahedra that share  a cornercorner with one Mg(1)O3F tetrahedra, corners with three equivalent Mn(6)O4F trigonal bipyramids, corners with three equivalent Mn(5)O5 trigonal bipyramids,  an edgeedge with one Mn(3)O4F2 octahedra, and  an edgeedge with one Mn(1)O5F octahedra. In the third Mn site, Mn(3) is bonded to one O(10), one O(2), one O(5), one O(8), one F(1), and one F(2) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mg(1)O3F tetrahedra, corners with three equivalent Mn(6)O4F trigonal bipyramids,  an edgeedge with one Mn(1)O5F octahedra,  an edgeedge with one Mn(2)O5F octahedra, and  an edgeedge with one Mg(1)O3F tetrahedra. In the fourth Mn site, Mn(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and one O(8) atom. In the fifth Mn site, Mn(5) is bonded to one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share corners with three equivalent Mn(1)O5F octahedra, corners with three equivalent Mn(2)O5F octahedra, and  an edgeedge with one Mn(6)O4F trigonal bipyramid. The corner-sharing octahedral tilt angles range from 42-54°. In the sixth Mn site, Mn(6) is bonded to one O(4), one O(5), one O(7), one O(8), and one F(1) atom to form distorted MnO4F trigonal bipyramids that share corners with three equivalent Mn(3)O4F2 octahedra, corners with three equivalent Mn(2)O5F octahedra,  an edgeedge with one Mg(1)O3F tetrahedra, and  an edgeedge with one Mn(5)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 32-57°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(5) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(6) atom to form a mixture of distorted corner and face-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(2), one Mn(5), and one Mn(6) atom. In the eighth O site, O(8) is bonded to one Mg(1), one Mn(3), one Mn(4), and one Mn(6) atom to form a mixture of distorted corner and face-sharing OMgMn3 trigonal pyramids. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a T-shaped geometry to one Mg(1), one Mn(2), and one Mn(3) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Mn(2), one Mn(3), and one Mn(6) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one Mn(3) atom. is represented by the CIF file [CIF]
data_MgMn6(O5F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   5.160
_cell_length_c   8.824
_cell_angle_alpha   92.342
_cell_angle_beta   87.237
_cell_angle_gamma   104.517
_symmetry_Int_Tables_number   1
_cell_volume   227.937
_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  0.697  0.296  0.677  1.0
  Mn  Mn1  1  0.001  0.001  0.007  1.0
  Mn  Mn2  1  0.989  0.009  0.321  1.0
  Mn  Mn3  1  0.033  0.965  0.659  1.0
  Mn  Mn4  1  0.414  0.596  0.857  1.0
  Mn  Mn5  1  0.553  0.445  0.163  1.0
  Mn  Mn6  1  0.451  0.546  0.490  1.0
  O  O7  1  0.144  0.858  0.155  1.0
  O  O8  1  0.166  0.830  0.832  1.0
  O  O9  1  0.312  0.305  0.998  1.0
  O  O10  1  0.320  0.287  0.331  1.0
  O  O11  1  0.314  0.302  0.665  1.0
  O  O12  1  0.689  0.701  0.005  1.0
  O  O13  1  0.711  0.680  0.331  1.0
  O  O14  1  0.688  0.685  0.670  1.0
  O  O15  1  0.837  0.168  0.173  1.0
  O  O16  1  0.865  0.132  0.513  1.0
  F  F17  1  0.198  0.797  0.471  1.0
  F  F18  1  0.827  0.175  0.851  1.0
[/CIF]
.