data_[Er4Re4Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Re  1.9000  1.3500  0.7125
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.1926]
_cell_length_b [3.6318]
_cell_length_c [8.2161]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [ErReSi]
_chemical_formula_sum '[Er4 Re4 Si4]'
_cell_volume [214.6217]
_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  4  0.0339  0.2500  0.6679  1.0
  Re  Re1  4  0.1347  0.2500  0.0642  1.0
  Si  Si2  4  0.2239  0.7500  0.8688  1.0
]