data_[Na4Li4Pb6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.7766]
_cell_length_b [4.7420]
_cell_length_c [8.0102]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.6990]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Li2Pb3]
_chemical_formula_sum '[Na4 Li4 Pb6]'
_cell_volume [377.6338]
_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  0.1393  0.0000  0.7787  1.0
  Li  Li1  4  0.1388  0.0000  0.1901  1.0
  Pb  Pb2  4  0.1354  0.5000  0.4456  1.0
  Pb  Pb3  2  0.0000  0.5000  0.0000  1.0
]