data_[Rb4Na16Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [15.5885]
_cell_length_b [9.6769]
_cell_length_c [6.4966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.7592]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNa4Pb]
_chemical_formula_sum '[Rb4 Na16 Pb4]'
_cell_volume [965.8188]
_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  0.0000  0.1846  0.2500  1.0
  Na  Na1  8  0.1164  0.4434  0.7159  1.0
  Na  Na2  8  0.1997  0.0942  0.9296  1.0
  Pb  Pb3  4  0.2500  0.2500  0.5000  1.0
]