data_[Na6Ag3Pb3Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.0193]
_cell_length_b [7.0193]
_cell_length_c [19.0608]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Na2AgPbCl6]
_chemical_formula_sum '[Na6 Ag3 Pb3 Cl18]'
_cell_volume [813.3158]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.4805  1.0
  Na  Na1  3  0.0000  0.0000  0.9813  1.0
  Ag  Ag2  3  0.0000  0.0000  0.6783  1.0
  Pb  Pb3  3  0.0000  0.0000  0.1782  1.0
  Cl  Cl4  9  0.0366  0.3420  0.7511  1.0
  Cl  Cl5  9  0.0468  0.6896  0.2551  1.0
]