data_[Rb2As2Pb2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  As  2.1800  1.1500  0.6600
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.5979]
_cell_length_b [5.0271]
_cell_length_c [9.6776]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2372]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbAsPbSe3]
_chemical_formula_sum '[Rb2 As2 Pb2 Se6]'
_cell_volume [399.5066]
_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  0.2547  0.2500  0.2721  1.0
  As  As1  2  0.1232  0.2500  0.6278  1.0
  Pb  Pb2  2  0.3204  0.7500  0.8968  1.0
  Se  Se3  2  0.0576  0.2500  0.8539  1.0
  Se  Se4  2  0.1710  0.7500  0.5438  1.0
  Se  Se5  2  0.4796  0.2500  0.7993  1.0
]