The crystal structure described by Mn3O4 crystallizes in the monoclinic Pm space group. There are twelve inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(7), one O(8), two equivalent O(1), and two equivalent O(16) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. In the second Mn site, Mn(2) is bonded in a see-saw-like geometry to one O(13), one O(8), and two equivalent O(14) atoms. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), two equivalent O(16), and two equivalent O(5) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 2°. In the fourth Mn site, Mn(4) is bonded in a 6-coordinate geometry to one O(5), one O(6), two equivalent O(10), and two equivalent O(3) atoms. In the fifth Mn site, Mn(5) is bonded to one O(13), one O(7), two equivalent O(11), and two equivalent O(15) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 3°. In the sixth Mn site, Mn(6) is bonded to one O(11), one O(14), two equivalent O(13), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. In the seventh Mn site, Mn(7) is bonded to one O(1), one O(14), two equivalent O(3), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. In the eighth Mn site, Mn(8) is bonded in a 6-coordinate geometry to one O(2), one O(6), two equivalent O(4), and two equivalent O(9) atoms. In the ninth Mn site, Mn(9) is bonded in a see-saw-like geometry to one O(1), one O(11), and two equivalent O(7) atoms. In the tenth Mn site, Mn(10) is bonded in a 5-coordinate geometry to one O(9), two equivalent O(15), and two equivalent O(2) atoms. In the eleventh Mn site, Mn(11) is bonded in a distorted see-saw-like geometry to one O(2), one O(5), and two equivalent O(12) atoms. In the twelfth Mn site, Mn(12) is bonded in a see-saw-like geometry to one O(10), one O(9), and two equivalent O(6) atoms. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Mn(7), one Mn(9), and two equivalent Mn(1) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the second O site, O(2) is bonded to one Mn(11), one Mn(8), and two equivalent Mn(10) atoms to form a mixture of distorted corner and edge-sharing OMn4 tetrahedra. In the third O site, O(3) is bonded in a square co-planar geometry to two equivalent Mn(4) and two equivalent Mn(7) atoms. In the fourth O site, O(4) is bonded in a square co-planar geometry to two equivalent Mn(6) and two equivalent Mn(8) atoms. In the fifth O site, O(5) is bonded to one Mn(11), one Mn(4), and two equivalent Mn(3) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Mn(4), one Mn(8), and two equivalent Mn(12) atoms. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(5), and two equivalent Mn(9) atoms. In the eighth O site, O(8) is bonded to one Mn(1), one Mn(2), and two equivalent Mn(7) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the ninth O site, O(9) is bonded to one Mn(10), one Mn(12), and two equivalent Mn(8) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the tenth O site, O(10) is bonded to one Mn(12), one Mn(3), and two equivalent Mn(4) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the eleventh O site, O(11) is bonded to one Mn(6), one Mn(9), and two equivalent Mn(5) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Mn(3) and two equivalent Mn(11) atoms. In the thirteenth O site, O(13) is bonded to one Mn(2), one Mn(5), and two equivalent Mn(6) atoms to form a mixture of corner and edge-sharing OMn4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a distorted see-saw-like geometry to one Mn(6), one Mn(7), and two equivalent Mn(2) atoms. In the fifteenth O site, O(15) is bonded in a square co-planar geometry to two equivalent Mn(10) and two equivalent Mn(5) atoms. In the sixteenth O site, O(16) is bonded in a square co-planar geometry to two equivalent Mn(1) and two equivalent Mn(3) atoms. is represented by the CIF file [CIF]
data_Mn3O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.160
_cell_length_b   10.582
_cell_length_c   12.130
_cell_angle_alpha   89.975
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   405.637
_cell_formula_units_Z   4
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  0.124  0.046  1.0
  Mn  Mn1  1  0.000  0.977  0.750  1.0
  Mn  Mn2  1  0.000  0.376  0.962  1.0
  Mn  Mn3  1  0.500  0.625  0.035  1.0
  Mn  Mn4  1  0.000  0.120  0.452  1.0
  Mn  Mn5  1  0.500  0.880  0.549  1.0
  Mn  Mn6  1  0.500  0.881  0.955  1.0
  Mn  Mn7  1  0.500  0.626  0.463  1.0
  Mn  Mn8  1  0.500  0.033  0.251  1.0
  Mn  Mn9  1  0.000  0.374  0.530  1.0
  Mn  Mn10  1  0.500  0.438  0.751  1.0
  Mn  Mn11  1  0.000  0.546  0.248  1.0
  O  O12  1  0.500  0.009  0.097  1.0
  O  O13  1  0.500  0.476  0.597  1.0
  O  O14  1  0.000  0.753  0.994  1.0
  O  O15  1  0.000  0.751  0.508  1.0
  O  O16  1  0.500  0.485  0.902  1.0
  O  O17  1  0.500  0.639  0.249  1.0
  O  O18  1  0.000  0.129  0.254  1.0
  O  O19  1  0.000  0.997  0.905  1.0
  O  O20  1  0.000  0.516  0.403  1.0
  O  O21  1  0.000  0.515  0.094  1.0
  O  O22  1  0.500  0.003  0.405  1.0
  O  O23  1  0.000  0.345  0.760  1.0
  O  O24  1  0.000  1.000  0.595  1.0
  O  O25  1  0.500  0.881  0.748  1.0
  O  O26  1  0.500  0.249  0.487  1.0
  O  O27  1  0.500  0.251  0.008  1.0
[/CIF]
.
The crystal structure described by Mn3O4 crystallizes in the monoclinic Pm space group. There are twelve inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(7), one O(8), two equivalent O(1), and two equivalent O(16) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. In the second Mn site, Mn(2) is bonded in a see-saw-like geometry to one O(13), one O(8), and two equivalent O(14) atoms. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), two equivalent O(16), and two equivalent O(5) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 2°. In the fourth Mn site, Mn(4) is bonded in a 6-coordinate geometry to one O(5), one O(6), two equivalent O(10), and two equivalent O(3) atoms. In the fifth Mn site, Mn(5) is bonded to one O(13), one O(7), two equivalent O(11), and two equivalent O(15) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 3°. In the sixth Mn site, Mn(6) is bonded to one O(11), one O(14), two equivalent O(13), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. In the seventh Mn site, Mn(7) is bonded to one O(1), one O(14), two equivalent O(3), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. In the eighth Mn site, Mn(8) is bonded in a 6-coordinate geometry to one O(2), one O(6), two equivalent O(4), and two equivalent O(9) atoms. In the ninth Mn site, Mn(9) is bonded in a see-saw-like geometry to one O(1), one O(11), and two equivalent O(7) atoms. In the tenth Mn site, Mn(10) is bonded in a 5-coordinate geometry to one O(9), two equivalent O(15), and two equivalent O(2) atoms. In the eleventh Mn site, Mn(11) is bonded in a distorted see-saw-like geometry to one O(2), one O(5), and two equivalent O(12) atoms. In the twelfth Mn site, Mn(12) is bonded in a see-saw-like geometry to one O(10), one O(9), and two equivalent O(6) atoms. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Mn(7), one Mn(9), and two equivalent Mn(1) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the second O site, O(2) is bonded to one Mn(11), one Mn(8), and two equivalent Mn(10) atoms to form a mixture of distorted corner and edge-sharing OMn4 tetrahedra. In the third O site, O(3) is bonded in a square co-planar geometry to two equivalent Mn(4) and two equivalent Mn(7) atoms. In the fourth O site, O(4) is bonded in a square co-planar geometry to two equivalent Mn(6) and two equivalent Mn(8) atoms. In the fifth O site, O(5) is bonded to one Mn(11), one Mn(4), and two equivalent Mn(3) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Mn(4), one Mn(8), and two equivalent Mn(12) atoms. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(5), and two equivalent Mn(9) atoms. In the eighth O site, O(8) is bonded to one Mn(1), one Mn(2), and two equivalent Mn(7) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the ninth O site, O(9) is bonded to one Mn(10), one Mn(12), and two equivalent Mn(8) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the tenth O site, O(10) is bonded to one Mn(12), one Mn(3), and two equivalent Mn(4) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the eleventh O site, O(11) is bonded to one Mn(6), one Mn(9), and two equivalent Mn(5) atoms to form a mixture of distorted corner and edge-sharing OMn4 trigonal pyramids. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Mn(3) and two equivalent Mn(11) atoms. In the thirteenth O site, O(13) is bonded to one Mn(2), one Mn(5), and two equivalent Mn(6) atoms to form a mixture of corner and edge-sharing OMn4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a distorted see-saw-like geometry to one Mn(6), one Mn(7), and two equivalent Mn(2) atoms. In the fifteenth O site, O(15) is bonded in a square co-planar geometry to two equivalent Mn(10) and two equivalent Mn(5) atoms. In the sixteenth O site, O(16) is bonded in a square co-planar geometry to two equivalent Mn(1) and two equivalent Mn(3) atoms. is represented by the CIF file [CIF]
data_Mn3O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.160
_cell_length_b   10.582
_cell_length_c   12.130
_cell_angle_alpha   89.975
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   405.637
_cell_formula_units_Z   4
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  0.124  0.046  1.0
  Mn  Mn1  1  0.000  0.977  0.750  1.0
  Mn  Mn2  1  0.000  0.376  0.962  1.0
  Mn  Mn3  1  0.500  0.625  0.035  1.0
  Mn  Mn4  1  0.000  0.120  0.452  1.0
  Mn  Mn5  1  0.500  0.880  0.549  1.0
  Mn  Mn6  1  0.500  0.881  0.955  1.0
  Mn  Mn7  1  0.500  0.626  0.463  1.0
  Mn  Mn8  1  0.500  0.033  0.251  1.0
  Mn  Mn9  1  0.000  0.374  0.530  1.0
  Mn  Mn10  1  0.500  0.438  0.751  1.0
  Mn  Mn11  1  0.000  0.546  0.248  1.0
  O  O12  1  0.500  0.009  0.097  1.0
  O  O13  1  0.500  0.476  0.597  1.0
  O  O14  1  0.000  0.753  0.994  1.0
  O  O15  1  0.000  0.751  0.508  1.0
  O  O16  1  0.500  0.485  0.902  1.0
  O  O17  1  0.500  0.639  0.249  1.0
  O  O18  1  0.000  0.129  0.254  1.0
  O  O19  1  0.000  0.997  0.905  1.0
  O  O20  1  0.000  0.516  0.403  1.0
  O  O21  1  0.000  0.515  0.094  1.0
  O  O22  1  0.500  0.003  0.405  1.0
  O  O23  1  0.000  0.345  0.760  1.0
  O  O24  1  0.000  1.000  0.595  1.0
  O  O25  1  0.500  0.881  0.748  1.0
  O  O26  1  0.500  0.249  0.487  1.0
  O  O27  1  0.500  0.251  0.008  1.0
[/CIF]
.