data_[Rb8Tb2Br14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.3863]
_cell_length_b [5.6499]
_cell_length_c [11.6676]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.0301]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb4TbBr7]
_chemical_formula_sum '[Rb8 Tb2 Br14]'
_cell_volume [1106.9066]
_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
[
  Rb  Rb0  4  0.0128  0.5000  0.7034  1
  Rb  Rb1  4  0.2457  0.0000  0.6738  1
  Tb  Tb2  2  0.0000  0.0000  0.0000  1
  Br  Br3  4  0.1130  0.0000  0.8663  1
  Br  Br4  4  0.1166  0.0000  0.2170  1
  Br  Br5  4  0.1453  0.5000  0.5385  1
  Br  Br6  2  0.0000  0.5000  0.0000  1
]