data_[Rb4Sn8Pb10]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.7779]
_cell_length_b [6.8205]
_cell_length_c [10.5480]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.7138]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Sn4Pb5]
_chemical_formula_sum '[Rb4 Sn8 Pb10]'
_cell_volume [852.2582]
_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  0.2117  0.5000  0.7627  1.0
  Sn  Sn1  4  0.1270  0.5000  0.0709  1.0
  Sn  Sn2  4  0.2454  0.0000  0.5665  1.0
  Pb  Pb3  8  0.0313  0.2407  0.2430  1.0
  Pb  Pb4  2  0.0000  0.0000  0.5000  1.0
]