data_[K2Rb2Mn2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Mn  1.5500  1.4000  0.6483
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1880]
_cell_length_b [5.5284]
_cell_length_c [6.3242]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.9970]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRbMnO3]
_chemical_formula_sum '[K2 Rb2 Mn2 O6]'
_cell_volume [201.9837]
_cell_formula_units_Z [2]
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
[
  Rb  Rb0  2  0.1930  0.7500  0.5138  1.0
  K  K1  2  0.4754  0.2500  0.8098  1.0
  Mn  Mn2  2  0.0600  0.2500  0.0689  1.0
  O  O3  4  0.1468  0.0004  0.9032  1.0
  O  O4  2  0.2858  0.2500  0.3433  1.0
]