data_[K4Rb2Sr2]
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 [Cm]
_cell_length_a [7.9394]
_cell_length_b [4.7164]
_cell_length_c [15.2000]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.8281]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K2RbSr]
_chemical_formula_sum '[K4 Rb2 Sr2]'
_cell_volume [563.8653]
_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  2  0.2556  0.5000  0.2637  1.0
  Rb  Rb1  2  0.3334  0.0000  0.9997  1.0
  K  K2  2  0.4118  0.5000  0.7364  1.0
  Sr  Sr3  2  0.4993  0.0000  0.5003  1.0
]