data_[Na14Ca2Pb10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.8843]
_cell_length_b [11.1432]
_cell_length_c [11.1912]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Na7CaPb5]
_chemical_formula_sum '[Na14 Ca2 Pb10]'
_cell_volume [858.5024]
_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
[
  Na  Na0  4  0.0000  0.3099  0.0399  1.0
  Na  Na1  4  0.0000  0.3273  0.5239  1.0
  Na  Na2  2  0.0000  0.0000  0.2360  1.0
  Na  Na3  2  0.0000  0.0000  0.5637  1.0
  Na  Na4  2  0.0000  0.5000  0.7899  1.0
  Ca  Ca5  2  0.0000  0.0000  0.8859  1.0
  Pb  Pb6  8  0.2369  0.2477  0.7803  1.0
  Pb  Pb7  2  0.0000  0.5000  0.2755  1.0
]