data_[Rb4Pb4O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.3431]
_cell_length_b [8.2895]
_cell_length_c [6.8708]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5405]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Rb2Pb2O3]
_chemical_formula_sum '[Rb4 Pb4 O6]'
_cell_volume [355.1792]
_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  0.2434  0.1305  0.3892  1.0
  Pb  Pb1  4  0.2912  0.6300  0.4481  1.0
  O  O2  4  0.4507  0.0594  0.7930  1.0
  O  O3  2  0.0000  0.0000  0.0000  1.0
]