data_[Rb1Tb2Ag1Br8]
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
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.1940]
_cell_length_b [8.7076]
_cell_length_c [7.2892]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.1729]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [RbTb2AgBr8]
_chemical_formula_sum '[Rb1 Tb2 Ag1 Br8]'
_cell_volume [451.9755]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.0000  1.0
  Tb  Tb1  2  0.5000  0.2410  0.5000  1.0
  Ag  Ag2  1  0.0000  0.0000  0.0000  1.0
  Br  Br3  4  0.2720  0.2173  0.1589  1.0
  Br  Br4  2  0.2782  0.0000  0.6258  1.0
  Br  Br5  2  0.2901  0.5000  0.6179  1.0
]