data_[K12Ba18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ba  0.8900  2.1500  1.4900
]
_symmetry_space_group_name_H-M [R-3c]
_cell_length_a [12.7280]
_cell_length_b [12.7280]
_cell_length_c [14.2749]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [167]
_chemical_formula_structural [K2Ba3]
_chemical_formula_sum '[K12 Ba18]'
_cell_volume [2002.7494]
_cell_formula_units_Z [6]
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  12  0.0000  0.0000  0.1248  1
  Ba  Ba1  18  0.0000  0.3306  0.7500  1
]