data_[Rb2As2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  As  2.1800  1.1500  0.6600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1]
_cell_length_a [6.3930]
_cell_length_b [4.7533]
_cell_length_c [8.3582]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.0655]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [RbAsF4]
_chemical_formula_sum '[Rb2 As2 F8]'
_cell_volume [235.3842]
_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
[
  Rb  Rb0  2  0.0963  0.6938  0.7860  1.0
  As  As1  2  0.4614  0.6890  0.3072  1.0
  F  F2  2  0.1406  0.6982  0.1591  1.0
  F  F3  2  0.2128  0.2226  0.5828  1.0
  F  F4  2  0.4543  0.0695  0.2862  1.0
  F  F5  2  0.4878  0.1240  0.8867  1.0
]