data_[Sm18W3O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  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 [10.0712]
_cell_length_b [10.0712]
_cell_length_c [9.6394]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sm6WO12]
_chemical_formula_sum '[Sm18 W3 O36]'
_cell_volume [846.7315]
_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
[
  Sm  Sm0  18  0.0436  0.7883  0.6440  1.0
  W  W1  3  0.0000  0.0000  0.0000  1.0
  O  O2  18  0.0346  0.8101  0.4019  1.0
  O  O3  18  0.0376  0.8567  0.8896  1.0
]