data_[Na2Sr2Tb2Br12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Tb  1.1000  1.7500  0.9815
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P-31c]
_cell_length_a [7.5548]
_cell_length_b [7.5548]
_cell_length_c [13.1705]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [163]
_chemical_formula_structural [NaSrTbBr6]
_chemical_formula_sum '[Na2 Sr2 Tb2 Br12]'
_cell_volume [650.9884]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1
  Sr  Sr1  2  0.3333  0.6667  0.2500  1
  Tb  Tb2  2  0.3333  0.6667  0.7500  1
  Br  Br3  12  0.0246  0.3599  0.6275  1
]