data_[K2Rb2W2Se8]
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
  W  2.3600  1.3500  0.7667
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.1278]
_cell_length_b [7.3537]
_cell_length_c [10.0484]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3794]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRbWSe4]
_chemical_formula_sum '[K2 Rb2 W2 Se8]'
_cell_volume [496.8552]
_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  0.2123  0.2500  0.5291  1.0
  Rb  Rb1  2  0.3179  0.2500  0.0921  1.0
  W  W2  2  0.1817  0.7500  0.2859  1.0
  Se  Se3  4  0.0249  0.5052  0.7767  1.0
  Se  Se4  2  0.3427  0.7500  0.5304  1.0
  Se  Se5  2  0.4089  0.7500  0.1623  1.0
]