The material described by K2Mg2O3 crystallizes in the tetragonal P4_32_12 space group. K(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. Mg(1) is bonded to one O(2) and three equivalent O(1) atoms to form a mixture of edge and corner-sharing MgO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1) and three equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent K(1) and two equivalent Mg(1) atoms. is represented by the CIF card [CIF]
data_K2Mg2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.491
_cell_length_b   6.491
_cell_length_c   10.394
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   437.849
_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
  K  K0  1  0.933  0.737  0.362  1.0
  K  K1  1  0.263  0.067  0.138  1.0
  K  K2  1  0.237  0.567  0.612  1.0
  K  K3  1  0.567  0.237  0.388  1.0
  K  K4  1  0.433  0.763  0.888  1.0
  K  K5  1  0.763  0.433  0.112  1.0
  K  K6  1  0.737  0.933  0.638  1.0
  K  K7  1  0.067  0.263  0.862  1.0
  Mg  Mg8  1  0.927  0.778  0.882  1.0
  Mg  Mg9  1  0.222  0.073  0.618  1.0
  Mg  Mg10  1  0.278  0.573  0.132  1.0
  Mg  Mg11  1  0.573  0.278  0.868  1.0
  Mg  Mg12  1  0.427  0.722  0.368  1.0
  Mg  Mg13  1  0.722  0.427  0.632  1.0
  Mg  Mg14  1  0.778  0.927  0.118  1.0
  Mg  Mg15  1  0.073  0.222  0.382  1.0
  O  O16  1  0.971  0.264  0.565  1.0
  O  O17  1  0.383  0.383  0.000  1.0
  O  O18  1  0.236  0.471  0.315  1.0
  O  O19  1  0.264  0.971  0.435  1.0
  O  O20  1  0.117  0.883  0.750  1.0
  O  O21  1  0.529  0.764  0.185  1.0
  O  O22  1  0.471  0.236  0.685  1.0
  O  O23  1  0.883  0.117  0.250  1.0
  O  O24  1  0.736  0.029  0.935  1.0
  O  O25  1  0.764  0.529  0.815  1.0
  O  O26  1  0.617  0.617  0.500  1.0
  O  O27  1  0.029  0.736  0.065  1.0
[/CIF]
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The material described by K2Mg2O3 crystallizes in the tetragonal P4_32_12 space group. K(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. Mg(1) is bonded to one O(2) and three equivalent O(1) atoms to form a mixture of edge and corner-sharing MgO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1) and three equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent K(1) and two equivalent Mg(1) atoms. is represented by the CIF card [CIF]
data_K2Mg2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.491
_cell_length_b   6.491
_cell_length_c   10.394
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   437.849
_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
  K  K0  1  0.933  0.737  0.362  1.0
  K  K1  1  0.263  0.067  0.138  1.0
  K  K2  1  0.237  0.567  0.612  1.0
  K  K3  1  0.567  0.237  0.388  1.0
  K  K4  1  0.433  0.763  0.888  1.0
  K  K5  1  0.763  0.433  0.112  1.0
  K  K6  1  0.737  0.933  0.638  1.0
  K  K7  1  0.067  0.263  0.862  1.0
  Mg  Mg8  1  0.927  0.778  0.882  1.0
  Mg  Mg9  1  0.222  0.073  0.618  1.0
  Mg  Mg10  1  0.278  0.573  0.132  1.0
  Mg  Mg11  1  0.573  0.278  0.868  1.0
  Mg  Mg12  1  0.427  0.722  0.368  1.0
  Mg  Mg13  1  0.722  0.427  0.632  1.0
  Mg  Mg14  1  0.778  0.927  0.118  1.0
  Mg  Mg15  1  0.073  0.222  0.382  1.0
  O  O16  1  0.971  0.264  0.565  1.0
  O  O17  1  0.383  0.383  0.000  1.0
  O  O18  1  0.236  0.471  0.315  1.0
  O  O19  1  0.264  0.971  0.435  1.0
  O  O20  1  0.117  0.883  0.750  1.0
  O  O21  1  0.529  0.764  0.185  1.0
  O  O22  1  0.471  0.236  0.685  1.0
  O  O23  1  0.883  0.117  0.250  1.0
  O  O24  1  0.736  0.029  0.935  1.0
  O  O25  1  0.764  0.529  0.815  1.0
  O  O26  1  0.617  0.617  0.500  1.0
  O  O27  1  0.029  0.736  0.065  1.0
[/CIF]
.