data_[K15Rb4Sr1]
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
  Sr  0.9500  2.0000  1.3200
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [6.8623]
_cell_length_b [6.8623]
_cell_length_c [31.6980]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [K15Rb4Sr]
_chemical_formula_sum '[K15 Rb4 Sr1]'
_cell_volume [1492.6924]
_cell_formula_units_Z [1]
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  0.5000  0.0923  1
  K  K1  4  0.0000  0.5000  0.2947  1
  Rb  Rb2  2  0.0000  0.0000  0.1919  1
  Rb  Rb3  2  0.0000  0.0000  0.3969  1
  K  K4  2  0.0000  0.5000  0.5000  1
  K  K5  2  0.5000  0.5000  0.1945  1
  K  K6  2  0.5000  0.5000  0.3971  1
  K  K7  1  0.5000  0.5000  0.0000  1
  Sr  Sr8  1  0.0000  0.0000  0.0000  1
]