The material described by MgMn2O3 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to six equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Mg(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 3°. Mn(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra, edges with three equivalent Mg(1)O6 octahedra, and edges with nine equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded to six equivalent Mn(1) atoms to form OMn6 octahedra that share corners with six equivalent O(2)Mg3Mn3 octahedra, edges with six equivalent O(2)Mg3Mn3 octahedra, and edges with six equivalent O(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(2) is bonded to three equivalent Mg(1) and three equivalent Mn(1) atoms to form OMg3Mn3 octahedra that share corners with three equivalent O(2)Mg3Mn3 octahedra, corners with three equivalent O(1)Mn6 octahedra, edges with three equivalent O(1)Mn6 octahedra, and edges with nine equivalent O(2)Mg3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. is represented by the CIF card [CIF]
data_MgMn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.049
_cell_length_b   3.049
_cell_length_c   7.608
_cell_angle_alpha   89.633
_cell_angle_beta   89.633
_cell_angle_gamma   60.737
_symmetry_Int_Tables_number   1
_cell_volume   61.686
_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  1.000  1.000  0.000  1.0
  Mn  Mn1  1  0.661  0.661  0.329  1.0
  Mn  Mn2  1  0.339  0.339  0.671  1.0
  O  O3  1  0.000  0.000  0.500  1.0
  O  O4  1  0.669  0.669  0.845  1.0
  O  O5  1  0.331  0.331  0.155  1.0
[/CIF]
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The material described by MgMn2O3 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to six equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Mg(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 3°. Mn(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra, edges with three equivalent Mg(1)O6 octahedra, and edges with nine equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded to six equivalent Mn(1) atoms to form OMn6 octahedra that share corners with six equivalent O(2)Mg3Mn3 octahedra, edges with six equivalent O(2)Mg3Mn3 octahedra, and edges with six equivalent O(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(2) is bonded to three equivalent Mg(1) and three equivalent Mn(1) atoms to form OMg3Mn3 octahedra that share corners with three equivalent O(2)Mg3Mn3 octahedra, corners with three equivalent O(1)Mn6 octahedra, edges with three equivalent O(1)Mn6 octahedra, and edges with nine equivalent O(2)Mg3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. is represented by the CIF card [CIF]
data_MgMn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.049
_cell_length_b   3.049
_cell_length_c   7.608
_cell_angle_alpha   89.633
_cell_angle_beta   89.633
_cell_angle_gamma   60.737
_symmetry_Int_Tables_number   1
_cell_volume   61.686
_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  1.000  1.000  0.000  1.0
  Mn  Mn1  1  0.661  0.661  0.329  1.0
  Mn  Mn2  1  0.339  0.339  0.671  1.0
  O  O3  1  0.000  0.000  0.500  1.0
  O  O4  1  0.669  0.669  0.845  1.0
  O  O5  1  0.331  0.331  0.155  1.0
[/CIF]
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