data_[K4Rb8Si4Te16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Si  1.9000  1.1000  0.5400
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.9120]
_cell_length_b [13.8117]
_cell_length_c [9.8750]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.4020]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KRb2SiTe4]
_chemical_formula_sum '[K4 Rb8 Si4 Te16]'
_cell_volume [1466.1988]
_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  0.0000  0.0000  1
  Rb  Rb1  4  0.0000  0.5000  0.0000  1
  Rb  Rb2  4  0.2500  0.2500  0.0000  1
  Si  Si3  4  0.2500  0.2500  0.5000  1
  Te  Te4  8  0.0837  0.2475  0.5411  1
  Te  Te5  8  0.2417  0.0630  0.4864  1
]