data_[Li21Sb3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.6293]
_cell_length_b [5.6293]
_cell_length_c [14.7226]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Li7SbO6]
_chemical_formula_sum '[Li21 Sb3 O18]'
_cell_volume [404.0321]
_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  9  0.0062  0.6159  0.1146  1
  Li  Li1  9  0.0163  0.2837  0.2198  1
  Li  Li2  3  0.0000  0.0000  0.6554  1
  Sb  Sb3  3  0.0000  0.0000  0.0014  1
  O  O4  9  0.0491  0.3749  0.7500  1
  O  O5  9  0.0579  0.7037  0.5867  1
]