data_[K4Tb2Ag2I12]
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
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [8.2048]
_cell_length_b [8.6697]
_cell_length_c [14.1762]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.1294]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2TbAgI6]
_chemical_formula_sum '[K4 Tb2 Ag2 I12]'
_cell_volume [824.7231]
_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  0.2815  0.5874  0.7515  1.0
  Tb  Tb1  2  0.0000  0.0000  0.5000  1.0
  Ag  Ag2  2  0.5000  0.0000  0.0000  1.0
  I  I3  4  0.1463  0.5211  0.2535  1.0
  I  I4  4  0.2365  0.2004  0.0505  1.0
  I  I5  4  0.3578  0.6905  0.0530  1.0
]