data_[K4Er2Sb4Te12]
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
  Sb  2.0500  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.5926]
_cell_length_b [13.1396]
_cell_length_c [8.9560]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1992]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Er(SbTe3)2]
_chemical_formula_sum '[K4 Er2 Sb4 Te12]'
_cell_volume [853.5293]
_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  0.1679  0.0000  1.0
  Er  Er1  2  0.0000  0.0000  0.5000  1.0
  Sb  Sb2  4  0.0000  0.3303  0.5000  1.0
  Te  Te3  8  0.2379  0.1662  0.7024  1.0
  Te  Te4  4  0.2365  0.5000  0.7010  1.0
]