data_[Pb18W6O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pb  2.3300  1.8000  1.1225
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [10.3102]
_cell_length_b [10.3102]
_cell_length_c [11.2849]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pb3WO6]
_chemical_formula_sum '[Pb18 W6 O36]'
_cell_volume [1038.8712]
_cell_formula_units_Z [6]
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
[
  Pb  Pb0  18  0.0379  0.7752  0.7084  1.0
  W  W1  3  0.0000  0.0000  0.0000  1.0
  W  W2  3  0.0000  0.0000  0.5000  1.0
  O  O3  18  0.0154  0.8538  0.3973  1.0
  O  O4  18  0.0466  0.8698  0.9022  1.0
]