data_[Rb4Ba2Sb4Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0317]
_cell_length_b [10.4243]
_cell_length_c [9.6783]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Rb2BaSb2Pb]
_chemical_formula_sum '[Rb4 Ba2 Sb4 Pb2]'
_cell_volume [507.6512]
_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  0.0000  0.1887  0.3731  1.0
  Rb  Rb1  2  0.5000  0.0861  0.0519  1.0
  Ba  Ba2  2  0.0000  0.4361  0.9605  1.0
  Sb  Sb3  2  0.0000  0.1555  0.7725  1.0
  Sb  Sb4  2  0.5000  0.4242  0.2448  1.0
  Pb  Pb5  2  0.5000  0.2994  0.6428  1.0
]