data_[K4Na2Tb2Br12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.7383]
_cell_length_b [8.1432]
_cell_length_c [13.3805]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.3262]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2NaTbBr6]
_chemical_formula_sum '[K4 Na2 Tb2 Br12]'
_cell_volume [696.3220]
_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  4  0.2818  0.0770  0.2546  1.0
  Na  Na1  2  0.5000  0.0000  0.0000  1.0
  Tb  Tb2  2  0.0000  0.0000  0.5000  1.0
  Br  Br3  4  0.1322  0.0316  0.7438  1.0
  Br  Br4  4  0.2423  0.7105  0.5575  1.0
  Br  Br5  4  0.3476  0.1911  0.5532  1.0
]