data_[K4Sr12]
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
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [12.7235]
_cell_length_b [12.2055]
_cell_length_c [6.0420]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [KSr3]
_chemical_formula_sum '[K4 Sr12]'
_cell_volume [938.3100]
_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  4  0.0000  0.3906  0.2500  1.0
  Sr  Sr1  8  0.2352  0.1270  0.2500  1.0
  Sr  Sr2  4  0.0000  0.1319  0.7500  1.0
]