data_[Li3Nd6Ta3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Nd  1.1400  1.8500  1.2765
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.6921]
_cell_length_b [5.6921]
_cell_length_c [14.0478]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [LiNd2TaO6]
_chemical_formula_sum '[Li3 Nd6 Ta3 O18]'
_cell_volume [394.1771]
_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  0.8083  1.0
  Nd  Nd1  3  0.0000  0.0000  0.0429  1.0
  Nd  Nd2  3  0.0000  0.0000  0.5426  1.0
  Ta  Ta3  3  0.0000  0.0000  0.3146  1.0
  O  O4  9  0.0326  0.6157  0.0736  1.0
  O  O5  9  0.0764  0.3377  0.9111  1.0
]