data_[K2Tb2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tb  1.1000  1.7500  0.9815
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.7627]
_cell_length_b [6.9143]
_cell_length_c [7.3379]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.6359]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [KTbCl4]
_chemical_formula_sum '[K2 Tb2 Cl8]'
_cell_volume [387.0815]
_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
[
  K  K0  2  0.0000  0.0000  0.0000  1.0
  Tb  Tb1  2  0.5000  0.0000  0.5000  1.0
  Cl  Cl2  4  0.1835  0.6320  0.8949  1.0
  Cl  Cl3  4  0.3908  0.1879  0.7831  1.0
]