data_[Rb1Na1Tb2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.8286]
_cell_length_b [8.3816]
_cell_length_c [6.9981]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.4113]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [RbNaTb2Cl8]
_chemical_formula_sum '[Rb1 Na1 Tb2 Cl8]'
_cell_volume [399.3505]
_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
  Na  Na1  1  0.0000  0.0000  0.0000  1.0
  Tb  Tb2  2  0.5000  0.2438  0.5000  1.0
  Cl  Cl3  4  0.2423  0.2233  0.2058  1.0
  Cl  Cl4  2  0.3052  0.0000  0.6596  1.0
  Cl  Cl5  2  0.3124  0.5000  0.6474  1.0
]