data_[Li3Nb3W3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Nb  1.6000  1.4500  0.8200
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.2691]
_cell_length_b [5.2691]
_cell_length_c [13.8064]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [LiNbWO6]
_chemical_formula_sum '[Li3 Nb3 W3 O18]'
_cell_volume [331.9532]
_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
[
  Li  Li0  3  0.0000  0.0000  0.2034  1.0
  Nb  Nb1  3  0.0000  0.0000  0.4853  1.0
  W  W2  3  0.0000  0.0000  0.9858  1.0
  O  O3  9  0.0136  0.4226  0.7496  1.0
  O  O4  9  0.0517  0.7110  0.5832  1.0
]