data_[Rb2Li2Be2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Li  0.9800  1.4500  0.9000
  Be  1.5700  1.0500  0.5900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.7812]
_cell_length_b [5.5690]
_cell_length_c [7.5838]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.0632]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbLiBeF4]
_chemical_formula_sum '[Rb2 Li2 Be2 F8]'
_cell_volume [194.0453]
_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  0.2649  0.2500  0.8555  1.0
  Li  Li1  2  0.3594  0.7500  0.4929  1.0
  Be  Be2  2  0.1289  0.2500  0.2958  1.0
  F  F3  4  0.3408  0.0244  0.3178  1.0
  F  F4  2  0.0048  0.7500  0.5401  1.0
  F  F5  2  0.1080  0.7500  0.8907  1.0
]