The structure described by MgMn4O8 is beta indium sulfide-derived structured and crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-22°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-22°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(2), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), and two equivalent Mn(2) atoms. is represented by the CIF card [CIF]
data_MgMn4O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.280
_cell_length_b   5.820
_cell_length_c   5.976
_cell_angle_alpha   62.402
_cell_angle_beta   89.561
_cell_angle_gamma   71.901
_symmetry_Int_Tables_number   1
_cell_volume   152.642
_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  0.500  0.500  0.250  1.0
  Mn  Mn1  1  0.042  0.984  0.507  1.0
  Mn  Mn2  1  0.998  0.502  0.996  1.0
  Mn  Mn3  1  0.958  0.016  0.993  1.0
  Mn  Mn4  1  0.002  0.498  0.504  1.0
  O  O5  1  0.219  0.731  0.385  1.0
  O  O6  1  0.204  0.744  0.915  1.0
  O  O7  1  0.181  0.267  0.857  1.0
  O  O8  1  0.216  0.281  0.347  1.0
  O  O9  1  0.819  0.733  0.643  1.0
  O  O10  1  0.784  0.719  0.153  1.0
  O  O11  1  0.781  0.269  0.115  1.0
  O  O12  1  0.796  0.256  0.585  1.0
[/CIF]
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The structure described by MgMn4O8 is beta indium sulfide-derived structured and crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-22°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-22°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(2), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), and two equivalent Mn(2) atoms. is represented by the CIF card [CIF]
data_MgMn4O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.280
_cell_length_b   5.820
_cell_length_c   5.976
_cell_angle_alpha   62.402
_cell_angle_beta   89.561
_cell_angle_gamma   71.901
_symmetry_Int_Tables_number   1
_cell_volume   152.642
_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  0.500  0.500  0.250  1.0
  Mn  Mn1  1  0.042  0.984  0.507  1.0
  Mn  Mn2  1  0.998  0.502  0.996  1.0
  Mn  Mn3  1  0.958  0.016  0.993  1.0
  Mn  Mn4  1  0.002  0.498  0.504  1.0
  O  O5  1  0.219  0.731  0.385  1.0
  O  O6  1  0.204  0.744  0.915  1.0
  O  O7  1  0.181  0.267  0.857  1.0
  O  O8  1  0.216  0.281  0.347  1.0
  O  O9  1  0.819  0.733  0.643  1.0
  O  O10  1  0.784  0.719  0.153  1.0
  O  O11  1  0.781  0.269  0.115  1.0
  O  O12  1  0.796  0.256  0.585  1.0
[/CIF]
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