data_[K4Sr2Co4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Co  1.8800  1.3500  0.7683
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3658]
_cell_length_b [3.6453]
_cell_length_c [9.0250]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.4846]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Sr(CoO2)2]
_chemical_formula_sum '[K4 Sr2 Co4 O8]'
_cell_volume [313.9790]
_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
[
  K  K0  4  0.1636  0.0000  0.7687  1
  Sr  Sr1  2  0.0000  0.0000  0.0000  1
  Co  Co2  4  0.1439  0.5000  0.3662  1
  O  O3  4  0.0495  0.5000  0.8559  1
  O  O4  4  0.2229  0.0000  0.3478  1
]