The compound described by MgMn4O8 crystallizes in the orthorhombic F222 space group. Mg(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(2) and three equivalent O(1) atoms to form distorted edge-sharing MnO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1) and two equivalent Mn(1) atoms. In the second O site, O(1) is bonded in a distorted T-shaped geometry to three equivalent Mn(1) atoms. is represented by the CIF file [CIF]
data_MgMn4O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.682
_cell_length_b   5.785
_cell_length_c   7.690
_cell_angle_alpha   67.820
_cell_angle_beta   44.217
_cell_angle_gamma   67.963
_symmetry_Int_Tables_number   1
_cell_volume   217.786
_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  0.375  0.375  0.375  1.0
  Mn  Mn1  1  0.548  0.446  0.548  1.0
  Mn  Mn2  1  0.958  0.548  0.446  1.0
  Mn  Mn3  1  0.446  0.548  0.958  1.0
  Mn  Mn4  1  0.548  0.958  0.548  1.0
  O  O5  1  0.327  0.699  0.772  1.0
  O  O6  1  0.701  0.772  0.699  1.0
  O  O7  1  0.699  0.327  0.701  1.0
  O  O8  1  0.772  0.701  0.327  1.0
  O  O9  1  0.247  0.298  0.249  1.0
  O  O10  1  0.707  0.249  0.297  1.0
  O  O11  1  0.297  0.247  0.707  1.0
  O  O12  1  0.249  0.707  0.247  1.0
[/CIF]
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The compound described by MgMn4O8 crystallizes in the orthorhombic F222 space group. Mg(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(2) and three equivalent O(1) atoms to form distorted edge-sharing MnO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1) and two equivalent Mn(1) atoms. In the second O site, O(1) is bonded in a distorted T-shaped geometry to three equivalent Mn(1) atoms. is represented by the CIF file [CIF]
data_MgMn4O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.682
_cell_length_b   5.785
_cell_length_c   7.690
_cell_angle_alpha   67.820
_cell_angle_beta   44.217
_cell_angle_gamma   67.963
_symmetry_Int_Tables_number   1
_cell_volume   217.786
_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  0.375  0.375  0.375  1.0
  Mn  Mn1  1  0.548  0.446  0.548  1.0
  Mn  Mn2  1  0.958  0.548  0.446  1.0
  Mn  Mn3  1  0.446  0.548  0.958  1.0
  Mn  Mn4  1  0.548  0.958  0.548  1.0
  O  O5  1  0.327  0.699  0.772  1.0
  O  O6  1  0.701  0.772  0.699  1.0
  O  O7  1  0.699  0.327  0.701  1.0
  O  O8  1  0.772  0.701  0.327  1.0
  O  O9  1  0.247  0.298  0.249  1.0
  O  O10  1  0.707  0.249  0.297  1.0
  O  O11  1  0.297  0.247  0.707  1.0
  O  O12  1  0.249  0.707  0.247  1.0
[/CIF]
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