data_[K8Mn4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mn  1.5500  1.4000  0.6483
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.5158]
_cell_length_b [6.1547]
_cell_length_c [5.9141]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.8274]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [K2MnO2]
_chemical_formula_sum '[K8 Mn4 O8]'
_cell_volume [377.2949]
_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  8  0.1541  0.3868  0.7095  1.0
  Mn  Mn1  4  0.0000  0.0245  0.2500  1.0
  O  O2  8  0.0930  0.1885  0.0669  1.0
]