data_[Rb4Tb2Cl8O4]
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
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.4294]
_cell_length_b [14.1334]
_cell_length_c [4.9493]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.0037]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Tb(Cl2O)2]
_chemical_formula_sum '[Rb4 Tb2 Cl8 O4]'
_cell_volume [520.6080]
_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  0.0000  0.3448  0.5000  1
  Tb  Tb1  2  0.0000  0.0000  0.0000  1
  Cl  Cl2  4  0.0000  0.1911  0.0000  1
  Cl  Cl3  4  0.2313  0.5000  0.1593  1
  O  O4  4  0.2464  0.0000  0.4370  1
]