data_[Rb4Sn4As8Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.3335]
_cell_length_b [4.4983]
_cell_length_c [9.8997]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.5490]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbSnAs2Pb]
_chemical_formula_sum '[Rb4 Sn4 As8 Pb4]'
_cell_volume [688.1951]
_cell_formula_units_Z [4]
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  0.1275  0.5000  0.4699  1.0
  Sn  Sn1  4  0.1129  0.0000  0.1324  1.0
  As  As2  4  0.0262  0.0000  0.8075  1.0
  As  As3  4  0.2201  0.5000  0.2166  1.0
  Pb  Pb4  4  0.1506  0.5000  0.8822  1.0
]