data_[Na3Li6Y3Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Y  1.2200  1.8000  1.0400
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.0947]
_cell_length_b [7.0947]
_cell_length_c [19.5479]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [NaLi2YBr6]
_chemical_formula_sum '[Na3 Li6 Y3 Br18]'
_cell_volume [852.1088]
_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
[
  Na  Na0  3  0.0000  0.0000  0.1864  1
  Li  Li1  3  0.0000  0.0000  0.4858  1
  Li  Li2  3  0.0000  0.0000  0.9904  1
  Y  Y3  3  0.0000  0.0000  0.6769  1
  Br  Br4  9  0.0056  0.3247  0.0819  1
  Br  Br5  9  0.0116  0.6338  0.2513  1
]