data_[Rb4Li28Pb6O28]
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
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [7.2991]
_cell_length_b [7.9417]
_cell_length_c [12.8190]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Rb2Li14Pb3O14]
_chemical_formula_sum '[Rb4 Li28 Pb6 O28]'
_cell_volume [743.0839]
_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  4  0.2313  0.5000  0.0000  1
  Li  Li1  16  0.2283  0.3431  0.3662  1
  Li  Li2  8  0.0000  0.3545  0.2319  1
  Li  Li3  4  0.0000  0.3420  0.5000  1
  Pb  Pb4  4  0.0000  0.0000  0.2722  1
  Pb  Pb5  2  0.0000  0.0000  0.0000  1
  O  O6  8  0.0000  0.1900  0.1265  1
  O  O7  8  0.0000  0.2189  0.3721  1
  O  O8  8  0.2079  0.5000  0.2486  1
  O  O9  4  0.2043  0.5000  0.5000  1
]