data_[Rb4H4F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  H  2.2000  0.2500  0.0000
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [7.3915]
_cell_length_b [5.9089]
_cell_length_c [5.9970]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [RbHF2]
_chemical_formula_sum '[Rb4 H4 F8]'
_cell_volume [261.9202]
_cell_formula_units_Z [4]
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  4  0.0000  0.0000  0.1184  1.0
  H  H1  4  0.2500  0.5038  0.1099  1.0
  F  F2  4  0.2500  0.1396  0.7378  1.0
  F  F3  4  0.2500  0.6478  0.9789  1.0
]