The crystal structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one F(1), one F(2), one F(5), and one F(6) atom to form MgO2F4 octahedra that share corners with two equivalent Mn(4)O2F4 octahedra,  a cornercorner with one Mn(1)O2F4 pentagonal pyramid,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, edges with two equivalent Mn(2)O3F3 octahedra, and  a faceface with one Mn(1)O2F4 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 50-54°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form distorted MnO2F4 pentagonal pyramids that share  a cornercorner with one Mg(1)O2F4 octahedra, corners with two equivalent Mn(3)O3F3 octahedra, corners with three equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and  a faceface with one Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 34-71°. 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(1)O2F4 pentagonal pyramids,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and edges with two equivalent Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. 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 MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with two equivalent Mn(1)O2F4 pentagonal pyramids,  an edgeedge with one Mg(1)O2F4 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 43-52°. 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)O2F4 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, and  an edgeedge with one Mn(1)O2F4 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 36-61°. In the fifth Mn site, Mn(5) is bonded in a 5-coordinate geometry to one O(3), one O(5), one F(1), one F(3), and one F(5) atom. 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 distorted MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(1)O2F4 pentagonal pyramids,  an edgeedge with one Mg(1)O2F4 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 36-61°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(3) atom to form distorted corner-sharing OMgMn3 trigonal pyramids. In the second O site, O(2) is bonded in a 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 corner-sharing OMgMn3 trigonal pyramids. 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 trigonal planar geometry to 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 4-coordinate 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 Mg(1), one Mn(3), and one Mn(4) 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(6) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fifth F site, F(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the sixth F site, F(6) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.365
_cell_length_b   5.905
_cell_length_c   6.091
_cell_angle_alpha   77.257
_cell_angle_beta   72.203
_cell_angle_gamma   72.969
_symmetry_Int_Tables_number   1
_cell_volume   238.627
_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  0.665  0.334  0.815  1.0
  Mn  Mn1  1  0.862  0.727  0.617  1.0
  Mn  Mn2  1  0.675  0.322  0.323  1.0
  Mn  Mn3  1  0.332  0.696  0.644  1.0
  Mn  Mn4  1  0.157  0.289  0.341  1.0
  Mn  Mn5  1  0.513  0.917  0.089  1.0
  Mn  Mn6  1  0.004  0.981  0.016  1.0
  O  O7  1  0.629  0.570  0.529  1.0
  O  O8  1  0.958  0.195  0.243  1.0
  O  O9  1  0.711  0.096  0.099  1.0
  O  O10  1  0.049  0.788  0.776  1.0
  O  O11  1  0.322  0.956  0.395  1.0
  F  F12  1  0.658  0.058  0.676  1.0
  F  F13  1  0.370  0.412  0.919  1.0
  F  F14  1  0.297  0.928  0.923  1.0
  F  F15  1  0.377  0.413  0.405  1.0
  F  F16  1  0.673  0.592  0.982  1.0
  F  F17  1  0.960  0.324  0.694  1.0
  F  F18  1  0.029  0.661  0.285  1.0
[/CIF]
.
The crystal structure described by MgMn6O5F7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one F(1), one F(2), one F(5), and one F(6) atom to form MgO2F4 octahedra that share corners with two equivalent Mn(4)O2F4 octahedra,  a cornercorner with one Mn(1)O2F4 pentagonal pyramid,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, edges with two equivalent Mn(2)O3F3 octahedra, and  a faceface with one Mn(1)O2F4 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 50-54°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one F(1), one F(5), one F(6), and one F(7) atom to form distorted MnO2F4 pentagonal pyramids that share  a cornercorner with one Mg(1)O2F4 octahedra, corners with two equivalent Mn(3)O3F3 octahedra, corners with three equivalent Mn(2)O3F3 octahedra, corners with three equivalent Mn(6)O3F3 octahedra,  an edgeedge with one Mn(4)O2F4 octahedra, and  a faceface with one Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 34-71°. 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(1)O2F4 pentagonal pyramids,  an edgeedge with one Mn(3)O3F3 octahedra,  an edgeedge with one Mn(6)O3F3 octahedra, and edges with two equivalent Mg(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. 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 MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with two equivalent Mn(1)O2F4 pentagonal pyramids,  an edgeedge with one Mg(1)O2F4 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 43-52°. 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)O2F4 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, and  an edgeedge with one Mn(1)O2F4 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 36-61°. In the fifth Mn site, Mn(5) is bonded in a 5-coordinate geometry to one O(3), one O(5), one F(1), one F(3), and one F(5) atom. 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 distorted MnO3F3 octahedra that share corners with three equivalent Mn(4)O2F4 octahedra, corners with three equivalent Mn(1)O2F4 pentagonal pyramids,  an edgeedge with one Mg(1)O2F4 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 36-61°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Mn(3) atom to form distorted corner-sharing OMgMn3 trigonal pyramids. In the second O site, O(2) is bonded in a 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 corner-sharing OMgMn3 trigonal pyramids. 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 trigonal planar geometry to 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 4-coordinate 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 Mg(1), one Mn(3), and one Mn(4) 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(6) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Mn(2), one Mn(3), and one Mn(4) atom. In the fifth F site, F(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Mn(5) atom. In the sixth F site, F(6) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(1), one Mn(4), and one Mn(6) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(4), and one Mn(6) atom. is represented by the CIF file [CIF]
data_MgMn6O5F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.365
_cell_length_b   5.905
_cell_length_c   6.091
_cell_angle_alpha   77.257
_cell_angle_beta   72.203
_cell_angle_gamma   72.969
_symmetry_Int_Tables_number   1
_cell_volume   238.627
_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  0.665  0.334  0.815  1.0
  Mn  Mn1  1  0.862  0.727  0.617  1.0
  Mn  Mn2  1  0.675  0.322  0.323  1.0
  Mn  Mn3  1  0.332  0.696  0.644  1.0
  Mn  Mn4  1  0.157  0.289  0.341  1.0
  Mn  Mn5  1  0.513  0.917  0.089  1.0
  Mn  Mn6  1  0.004  0.981  0.016  1.0
  O  O7  1  0.629  0.570  0.529  1.0
  O  O8  1  0.958  0.195  0.243  1.0
  O  O9  1  0.711  0.096  0.099  1.0
  O  O10  1  0.049  0.788  0.776  1.0
  O  O11  1  0.322  0.956  0.395  1.0
  F  F12  1  0.658  0.058  0.676  1.0
  F  F13  1  0.370  0.412  0.919  1.0
  F  F14  1  0.297  0.928  0.923  1.0
  F  F15  1  0.377  0.413  0.405  1.0
  F  F16  1  0.673  0.592  0.982  1.0
  F  F17  1  0.960  0.324  0.694  1.0
  F  F18  1  0.029  0.661  0.285  1.0
[/CIF]
.