data_[Cs2Rb4Sr4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [13.0524]
_cell_length_b [13.0524]
_cell_length_c [4.6582]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Cs(RbSr)2]
_chemical_formula_sum '[Cs2 Rb4 Sr4]'
_cell_volume [793.5948]
_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
[
  Cs  Cs0  2  0.0000  0.0000  0.0000  1
  Rb  Rb1  4  0.1782  0.6782  0.5000  1
  Sr  Sr2  4  0.1137  0.3863  0.0000  1
]