data_[Rb2Bi4Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Bi  2.0200  1.6000  1.0350
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.4417]
_cell_length_b [3.5814]
_cell_length_c [10.7831]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4323]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [RbBi2Pb]
_chemical_formula_sum '[Rb2 Bi4 Pb2]'
_cell_volume [307.4377]
_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  0.0367  0.5000  0.5003  1
  Bi  Bi1  2  0.1968  0.5000  0.2117  1
  Bi  Bi2  2  0.4453  0.5000  0.7877  1
  Pb  Pb3  2  0.3212  0.0000  0.0002  1
]