data_[Pr8Er4Zn4Te20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Zn  1.6500  1.3500  0.8800
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.3252]
_cell_length_b [19.2987]
_cell_length_c [13.1805]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pr2ErZnTe5]
_chemical_formula_sum '[Pr8 Er4 Zn4 Te20]'
_cell_volume [1100.1886]
_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
[
  Pr  Pr0  4  0.0000  0.1140  0.6823  1.0
  Pr  Pr1  4  0.0000  0.1286  0.3056  1.0
  Er  Er2  4  0.0000  0.1996  0.0107  1.0
  Zn  Zn3  4  0.0000  0.4354  0.4558  1.0
  Te  Te4  4  0.0000  0.0468  0.0688  1.0
  Te  Te5  4  0.0000  0.2857  0.6714  1.0
  Te  Te6  4  0.0000  0.3118  0.3474  1.0
  Te  Te7  4  0.0000  0.3567  0.9989  1.0
  Te  Te8  4  0.0000  0.4992  0.7832  1.0
]