data_[Er12Sn4Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.7576]
_cell_length_b [13.4006]
_cell_length_c [7.5108]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0820]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Er3SnBi2]
_chemical_formula_sum '[Er12 Sn4 Bi8]'
_cell_volume [733.3290]
_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
[
  Er  Er0  8  0.2434  0.4180  0.9960  1.0
  Er  Er1  4  0.2500  0.2500  0.5000  1.0
  Sn  Sn2  4  0.0000  0.4144  0.2500  1.0
  Bi  Bi3  4  0.0000  0.0828  0.2500  1.0
  Bi  Bi4  4  0.0000  0.2471  0.7500  1.0
]