The material described by MgMn6O7F5 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), one O(6), one F(1), one F(3), and one F(4) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(4)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra,  a cornercorner with one Mn(5)O3F3 pentagonal pyramid,  a cornercorner with one Mn(2)O4F square pyramid, edges with two equivalent Mn(3)O4F2 octahedra,  an edgeedge with one Mn(2)O4F square pyramid,  a faceface with one Mn(4)O3F3 octahedra, and  a faceface with one Mn(5)O3F3 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 41-50°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(7), one F(2), and one F(5) atom. In the second Mn site, Mn(2) is bonded to one O(1), one O(4), one O(5), one O(6), and one F(2) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(4)O3F3 octahedra,  a cornercorner with one Mn(5)O3F3 pentagonal pyramid,  an edgeedge with one Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 38-75°. In the third Mn site, Mn(3) is bonded to one O(3), one O(5), one O(6), one O(7), one F(1), and one F(4) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(4)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with four equivalent Mn(5)O3F3 pentagonal pyramids, edges with two equivalent Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(2)O4F square pyramid. The corner-sharing octahedral tilt angles range from 39-51°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(4), one O(6), one F(1), one F(3), and one F(5) atom to form distorted MnO3F3 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with three equivalent Mn(2)O4F square pyramids,  an edgeedge with one Mn(6)O3F3 octahedra,  an edgeedge with one Mn(5)O3F3 pentagonal pyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 39-44°. In the fifth Mn site, Mn(5) is bonded to one O(2), one O(5), one O(7), one F(1), one F(3), and one F(4) atom to form distorted MnO3F3 pentagonal pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with four equivalent Mn(3)O4F2 octahedra,  a cornercorner with one Mn(2)O4F square pyramid,  an edgeedge with one Mn(4)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 30-61°. In the sixth Mn site, Mn(6) is bonded to one O(1), one O(2), one O(3), one F(2), one F(4), and one F(5) atom to form distorted MnO3F3 octahedra that share corners with two equivalent Mg(1)O3F3 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(2)O4F square pyramids,  an edgeedge with one Mn(4)O3F3 octahedra, and  an edgeedge with one Mn(5)O3F3 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 41-51°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Mn(6) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(4) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(5) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(5) atom. There are five inequivalent F sites. In the first F site, F(1) 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. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(6) atom. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the fourth F site, F(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom. In the fifth F site, F(5) is bonded in a distorted L-shaped geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the CIF file [CIF]
data_MgMn6O7F5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   7.927
_cell_length_c   5.753
_cell_angle_alpha   96.747
_cell_angle_beta   98.478
_cell_angle_gamma   83.778
_symmetry_Int_Tables_number   1
_cell_volume   231.000
_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  0.014  0.492  0.007  1.0
  Mn  Mn1  1  0.531  0.010  0.492  1.0
  Mn  Mn2  1  0.548  0.680  0.122  1.0
  Mn  Mn3  1  0.492  0.320  0.833  1.0
  Mn  Mn4  1  0.002  0.681  0.644  1.0
  Mn  Mn5  1  0.960  0.296  0.365  1.0
  Mn  Mn6  1  0.965  0.990  0.001  1.0
  O  O7  1  0.853  0.737  0.944  1.0
  O  O8  1  0.816  0.084  0.273  1.0
  O  O9  1  0.701  0.103  0.790  1.0
  O  O10  1  0.702  0.781  0.452  1.0
  O  O11  1  0.702  0.418  0.129  1.0
  O  O12  1  0.302  0.553  0.851  1.0
  O  O13  1  0.308  0.223  0.532  1.0
  F  F14  1  0.827  0.428  0.666  1.0
  F  F15  1  0.300  0.911  0.207  1.0
  F  F16  1  0.135  0.545  0.356  1.0
  F  F17  1  0.175  0.253  0.034  1.0
  F  F18  1  0.182  0.911  0.742  1.0
[/CIF]
.
The material described by MgMn6O7F5 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), one O(6), one F(1), one F(3), and one F(4) atom to form MgO3F3 octahedra that share  a cornercorner with one Mn(4)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra,  a cornercorner with one Mn(5)O3F3 pentagonal pyramid,  a cornercorner with one Mn(2)O4F square pyramid, edges with two equivalent Mn(3)O4F2 octahedra,  an edgeedge with one Mn(2)O4F square pyramid,  a faceface with one Mn(4)O3F3 octahedra, and  a faceface with one Mn(5)O3F3 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 41-50°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(7), one F(2), and one F(5) atom. In the second Mn site, Mn(2) is bonded to one O(1), one O(4), one O(5), one O(6), and one F(2) atom to form distorted MnO4F square pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with three equivalent Mn(4)O3F3 octahedra,  a cornercorner with one Mn(5)O3F3 pentagonal pyramid,  an edgeedge with one Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 38-75°. In the third Mn site, Mn(3) is bonded to one O(3), one O(5), one O(6), one O(7), one F(1), and one F(4) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(4)O3F3 octahedra, corners with two equivalent Mn(6)O3F3 octahedra, corners with four equivalent Mn(5)O3F3 pentagonal pyramids, edges with two equivalent Mg(1)O3F3 octahedra, and  an edgeedge with one Mn(2)O4F square pyramid. The corner-sharing octahedral tilt angles range from 39-51°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(4), one O(6), one F(1), one F(3), and one F(5) atom to form distorted MnO3F3 octahedra that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with three equivalent Mn(2)O4F square pyramids,  an edgeedge with one Mn(6)O3F3 octahedra,  an edgeedge with one Mn(5)O3F3 pentagonal pyramid, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 39-44°. In the fifth Mn site, Mn(5) is bonded to one O(2), one O(5), one O(7), one F(1), one F(3), and one F(4) atom to form distorted MnO3F3 pentagonal pyramids that share  a cornercorner with one Mg(1)O3F3 octahedra, corners with four equivalent Mn(3)O4F2 octahedra,  a cornercorner with one Mn(2)O4F square pyramid,  an edgeedge with one Mn(4)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and  a faceface with one Mg(1)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 30-61°. In the sixth Mn site, Mn(6) is bonded to one O(1), one O(2), one O(3), one F(2), one F(4), and one F(5) atom to form distorted MnO3F3 octahedra that share corners with two equivalent Mg(1)O3F3 octahedra, corners with two equivalent Mn(3)O4F2 octahedra, corners with two equivalent Mn(2)O4F square pyramids,  an edgeedge with one Mn(4)O3F3 octahedra, and  an edgeedge with one Mn(5)O3F3 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 41-51°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Mn(6) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(5), and one Mn(6) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(4) atom. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(5) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Mn(3), and one Mn(4) atom to form a mixture of corner and edge-sharing OMgMn3 trigonal pyramids. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(3), and one Mn(5) atom. There are five inequivalent F sites. In the first F site, F(1) 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. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Mn(6) atom. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(4), and one Mn(5) atom. In the fourth F site, F(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(3), one Mn(5), and one Mn(6) atom. In the fifth F site, F(5) is bonded in a distorted L-shaped geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the CIF file [CIF]
data_MgMn6O7F5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   7.927
_cell_length_c   5.753
_cell_angle_alpha   96.747
_cell_angle_beta   98.478
_cell_angle_gamma   83.778
_symmetry_Int_Tables_number   1
_cell_volume   231.000
_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  0.014  0.492  0.007  1.0
  Mn  Mn1  1  0.531  0.010  0.492  1.0
  Mn  Mn2  1  0.548  0.680  0.122  1.0
  Mn  Mn3  1  0.492  0.320  0.833  1.0
  Mn  Mn4  1  0.002  0.681  0.644  1.0
  Mn  Mn5  1  0.960  0.296  0.365  1.0
  Mn  Mn6  1  0.965  0.990  0.001  1.0
  O  O7  1  0.853  0.737  0.944  1.0
  O  O8  1  0.816  0.084  0.273  1.0
  O  O9  1  0.701  0.103  0.790  1.0
  O  O10  1  0.702  0.781  0.452  1.0
  O  O11  1  0.702  0.418  0.129  1.0
  O  O12  1  0.302  0.553  0.851  1.0
  O  O13  1  0.308  0.223  0.532  1.0
  F  F14  1  0.827  0.428  0.666  1.0
  F  F15  1  0.300  0.911  0.207  1.0
  F  F16  1  0.135  0.545  0.356  1.0
  F  F17  1  0.175  0.253  0.034  1.0
  F  F18  1  0.182  0.911  0.742  1.0
[/CIF]
.