data_[Li3Al3Sn6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Al  1.6100  1.2500  0.6750
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.1862]
_cell_length_b [5.1862]
_cell_length_c [14.1277]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [LiAl(SnO3)2]
_chemical_formula_sum '[Li3 Al3 Sn6 O18]'
_cell_volume [329.0865]
_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  0.2061  1.0
  Al  Al1  3  0.0000  0.0000  0.6795  1.0
  Sn  Sn2  3  0.0000  0.0000  0.4773  1.0
  Sn  Sn3  3  0.0000  0.0000  0.9832  1.0
  O  O4  9  0.0018  0.3564  0.4107  1.0
  O  O5  9  0.0028  0.7135  0.5868  1.0
]