data_[K4Er4Te2S12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Er  1.2400  1.7500  1.0300
  Te  2.1000  1.4000  1.2933
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.8689]
_cell_length_b [11.8495]
_cell_length_c [7.8866]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.7092]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Er2TeS6]
_chemical_formula_sum '[K4 Er4 Te2 S12]'
_cell_volume [614.8083]
_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  0.0000  0.1668  0.0000  1.0
  Er  Er1  4  0.0000  0.3335  0.5000  1.0
  Te  Te2  2  0.0000  0.0000  0.5000  1.0
  S  S3  8  0.2282  0.1645  0.6947  1.0
  S  S4  4  0.2380  0.5000  0.6953  1.0
]