data_[Rb1Na2W1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  W  2.3600  1.3500  0.7667
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.8749]
_cell_length_b [5.7228]
_cell_length_c [8.2616]
_cell_angle_alpha [88.6987]
_cell_angle_beta [88.9785]
_cell_angle_gamma [80.3828]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbNa2WF8]
_chemical_formula_sum '[Rb1 Na2 W1 F8]'
_cell_volume [227.1608]
_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
[
  Rb  Rb0  1  0.0000  0.0000  0.5000  1.0
  Na  Na1  2  0.4901  0.4931  0.6938  1.0
  W  W2  1  0.0000  0.0000  0.0000  1.0
  F  F3  2  0.1926  0.7999  0.1732  1.0
  F  F4  2  0.1939  0.7944  0.8321  1.0
  F  F5  2  0.2706  0.2043  0.9919  1.0
  F  F6  2  0.3706  0.2888  0.4976  1.0
]