data_[Tb21Ga3Br36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [R-3]
_cell_length_a [14.8801]
_cell_length_b [14.8801]
_cell_length_c [9.8850]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tb7GaBr12]
_chemical_formula_sum '[Tb21 Ga3 Br36]'
_cell_volume [1895.4947]
_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
[
  Tb  Tb0  18  0.0476  0.8780  0.8408  1.0
  Tb  Tb1  3  0.0000  0.0000  0.5000  1.0
  Ga  Ga2  3  0.0000  0.0000  0.0000  1.0
  Br  Br3  18  0.0242  0.4369  0.6650  1.0
  Br  Br4  18  0.0503  0.8689  0.3413  1.0
]