data_[Rb4Be4Pb4F20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Be  1.5700  1.0500  0.5900
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.4684]
_cell_length_b [10.1925]
_cell_length_c [8.6016]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.7026]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbBePbF5]
_chemical_formula_sum '[Rb4 Be4 Pb4 F20]'
_cell_volume [604.0433]
_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  0.3508  0.2500  1
  Be  Be1  4  0.0000  0.3087  0.7500  1
  Pb  Pb2  4  0.0000  0.0000  0.0000  1
  F  F3  8  0.0966  0.2181  0.6535  1
  F  F4  8  0.1561  0.4016  0.8819  1
  F  F5  4  0.0000  0.0928  0.2500  1
]