The structure described by K2MgMn2O4 crystallizes in the triclinic P1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(2), and two equivalent O(4) atoms. Mg(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. In the second Mn site, Mn(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(2) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1), one Mg(1), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent K(2), two equivalent Mg(1), and two equivalent Mn(2) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(1), and two equivalent Mn(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), and two equivalent Mn(2) atoms. is represented by the CIF file [CIF]
data_K2MgMn2O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.124
_cell_length_b   6.730
_cell_length_c   8.727
_cell_angle_alpha   99.020
_cell_angle_beta   89.737
_cell_angle_gamma   89.408
_symmetry_Int_Tables_number   1
_cell_volume   181.218
_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
  K  K0  1  0.506  0.916  0.409  1.0
  K  K1  1  0.005  0.580  0.096  1.0
  Mg  Mg2  1  0.997  0.245  0.756  1.0
  Mn  Mn3  1  0.506  0.428  0.464  1.0
  Mn  Mn4  1  0.989  0.042  0.018  1.0
  O  O5  1  0.005  0.248  0.539  1.0
  O  O6  1  0.496  0.226  0.890  1.0
  O  O7  1  0.005  0.584  0.395  1.0
  O  O8  1  0.491  0.899  0.092  1.0
[/CIF]
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The structure described by K2MgMn2O4 crystallizes in the triclinic P1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(2), and two equivalent O(4) atoms. Mg(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. In the second Mn site, Mn(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(2) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1), one Mg(1), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent K(2), two equivalent Mg(1), and two equivalent Mn(2) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(1), and two equivalent Mn(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), and two equivalent Mn(2) atoms. is represented by the CIF file [CIF]
data_K2MgMn2O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.124
_cell_length_b   6.730
_cell_length_c   8.727
_cell_angle_alpha   99.020
_cell_angle_beta   89.737
_cell_angle_gamma   89.408
_symmetry_Int_Tables_number   1
_cell_volume   181.218
_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
  K  K0  1  0.506  0.916  0.409  1.0
  K  K1  1  0.005  0.580  0.096  1.0
  Mg  Mg2  1  0.997  0.245  0.756  1.0
  Mn  Mn3  1  0.506  0.428  0.464  1.0
  Mn  Mn4  1  0.989  0.042  0.018  1.0
  O  O5  1  0.005  0.248  0.539  1.0
  O  O6  1  0.496  0.226  0.890  1.0
  O  O7  1  0.005  0.584  0.395  1.0
  O  O8  1  0.491  0.899  0.092  1.0
[/CIF]
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