The compound described by Mn2O3 is Hausmannite-like structured and crystallizes in the orthorhombic Pbca space group. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the second Mn site, Mn(2) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the third Mn site, Mn(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the second O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. In the third O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the fourth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. In the fifth O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the sixth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. is represented by the CIF file [CIF]
data_Mn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.158
_cell_length_b   8.158
_cell_length_c   8.158
_cell_angle_alpha   109.474
_cell_angle_beta   109.462
_cell_angle_gamma   109.478
_symmetry_Int_Tables_number   1
_cell_volume   417.898
_cell_formula_units_Z   8
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
  Mn  Mn0  1  0.000  0.500  0.500  1.0
  Mn  Mn1  1  0.500  1.000  0.500  1.0
  Mn  Mn2  1  0.500  0.500  0.000  1.0
  Mn  Mn3  1  0.000  0.000  0.000  1.0
  Mn  Mn4  1  0.250  0.215  0.465  1.0
  Mn  Mn5  1  0.750  0.285  0.035  1.0
  Mn  Mn6  1  0.750  0.785  0.535  1.0
  Mn  Mn7  1  0.250  0.715  0.965  1.0
  Mn  Mn8  1  0.035  0.250  0.785  1.0
  Mn  Mn9  1  0.465  0.750  0.715  1.0
  Mn  Mn10  1  0.965  0.750  0.215  1.0
  Mn  Mn11  1  0.535  0.250  0.285  1.0
  Mn  Mn12  1  0.715  0.965  0.250  1.0
  Mn  Mn13  1  0.785  0.535  0.750  1.0
  Mn  Mn14  1  0.285  0.035  0.750  1.0
  Mn  Mn15  1  0.215  0.465  0.250  1.0
  O  O16  1  0.061  0.016  0.788  1.0
  O  O17  1  0.272  0.484  0.045  1.0
  O  O18  1  0.439  0.727  0.455  1.0
  O  O19  1  0.228  0.773  0.712  1.0
  O  O20  1  0.939  0.984  0.212  1.0
  O  O21  1  0.728  0.516  0.955  1.0
  O  O22  1  0.561  0.273  0.545  1.0
  O  O23  1  0.772  0.227  0.288  1.0
  O  O24  1  0.712  0.728  0.273  1.0
  O  O25  1  0.045  0.772  0.984  1.0
  O  O26  1  0.788  0.562  0.516  1.0
  O  O27  1  0.455  0.938  0.227  1.0
  O  O28  1  0.288  0.272  0.727  1.0
  O  O29  1  0.955  0.228  0.016  1.0
  O  O30  1  0.212  0.438  0.484  1.0
  O  O31  1  0.545  0.062  0.773  1.0
  O  O32  1  0.227  0.955  0.439  1.0
  O  O33  1  0.984  0.545  0.272  1.0
  O  O34  1  0.273  0.212  0.228  1.0
  O  O35  1  0.516  0.288  0.061  1.0
  O  O36  1  0.773  0.045  0.561  1.0
  O  O37  1  0.016  0.455  0.728  1.0
  O  O38  1  0.727  0.788  0.772  1.0
  O  O39  1  0.484  0.712  0.939  1.0
[/CIF]
.
The compound described by Mn2O3 is Hausmannite-like structured and crystallizes in the orthorhombic Pbca space group. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the second Mn site, Mn(2) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the third Mn site, Mn(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 47-61°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the second O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. In the third O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the fourth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. In the fifth O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Mn(5) atom. In the sixth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Mn(3), one Mn(4), and one Mn(5) atom. is represented by the CIF file [CIF]
data_Mn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.158
_cell_length_b   8.158
_cell_length_c   8.158
_cell_angle_alpha   109.474
_cell_angle_beta   109.462
_cell_angle_gamma   109.478
_symmetry_Int_Tables_number   1
_cell_volume   417.898
_cell_formula_units_Z   8
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
  Mn  Mn0  1  0.000  0.500  0.500  1.0
  Mn  Mn1  1  0.500  1.000  0.500  1.0
  Mn  Mn2  1  0.500  0.500  0.000  1.0
  Mn  Mn3  1  0.000  0.000  0.000  1.0
  Mn  Mn4  1  0.250  0.215  0.465  1.0
  Mn  Mn5  1  0.750  0.285  0.035  1.0
  Mn  Mn6  1  0.750  0.785  0.535  1.0
  Mn  Mn7  1  0.250  0.715  0.965  1.0
  Mn  Mn8  1  0.035  0.250  0.785  1.0
  Mn  Mn9  1  0.465  0.750  0.715  1.0
  Mn  Mn10  1  0.965  0.750  0.215  1.0
  Mn  Mn11  1  0.535  0.250  0.285  1.0
  Mn  Mn12  1  0.715  0.965  0.250  1.0
  Mn  Mn13  1  0.785  0.535  0.750  1.0
  Mn  Mn14  1  0.285  0.035  0.750  1.0
  Mn  Mn15  1  0.215  0.465  0.250  1.0
  O  O16  1  0.061  0.016  0.788  1.0
  O  O17  1  0.272  0.484  0.045  1.0
  O  O18  1  0.439  0.727  0.455  1.0
  O  O19  1  0.228  0.773  0.712  1.0
  O  O20  1  0.939  0.984  0.212  1.0
  O  O21  1  0.728  0.516  0.955  1.0
  O  O22  1  0.561  0.273  0.545  1.0
  O  O23  1  0.772  0.227  0.288  1.0
  O  O24  1  0.712  0.728  0.273  1.0
  O  O25  1  0.045  0.772  0.984  1.0
  O  O26  1  0.788  0.562  0.516  1.0
  O  O27  1  0.455  0.938  0.227  1.0
  O  O28  1  0.288  0.272  0.727  1.0
  O  O29  1  0.955  0.228  0.016  1.0
  O  O30  1  0.212  0.438  0.484  1.0
  O  O31  1  0.545  0.062  0.773  1.0
  O  O32  1  0.227  0.955  0.439  1.0
  O  O33  1  0.984  0.545  0.272  1.0
  O  O34  1  0.273  0.212  0.228  1.0
  O  O35  1  0.516  0.288  0.061  1.0
  O  O36  1  0.773  0.045  0.561  1.0
  O  O37  1  0.016  0.455  0.728  1.0
  O  O38  1  0.727  0.788  0.772  1.0
  O  O39  1  0.484  0.712  0.939  1.0
[/CIF]
.