data_[K4Tb8Ag4Te16]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.4621]
_cell_length_b [15.0087]
_cell_length_c [15.8997]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [KTb2AgTe4]
_chemical_formula_sum '[K4 Tb8 Ag4 Te16]'
_cell_volume [1064.7993]
_cell_formula_units_Z [4]
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  0.0000  0.1260  0.7500  1.0
  Tb  Tb1  8  0.0000  0.3688  0.5700  1.0
  Ag  Ag2  4  0.0000  0.1591  0.2500  1.0
  Te  Te3  8  0.0000  0.2682  0.1055  1.0
  Te  Te4  4  0.0000  0.0000  0.0000  1.0
  Te  Te5  4  0.0000  0.4512  0.7500  1.0
]