data_[Na6Tb3Ga3Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Ga  1.8100  1.3000  0.7600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.5077]
_cell_length_b [7.5077]
_cell_length_c [20.4872]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Na2TbGaBr6]
_chemical_formula_sum '[Na6 Tb3 Ga3 Br18]'
_cell_volume [1000.0668]
_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  0.4805  1
  Na  Na1  3  0.0000  0.0000  0.9917  1
  Tb  Tb2  3  0.0000  0.0000  0.6749  1
  Ga  Ga3  3  0.0000  0.0000  0.1869  1
  Br  Br4  9  0.0051  0.3583  0.4140  1
  Br  Br5  9  0.0127  0.7117  0.5873  1
]