data_[La4Yb4Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Yb  1.1000  1.7500  1.0840
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.8880]
_cell_length_b [4.5784]
_cell_length_c [9.3177]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [LaYbSi]
_chemical_formula_sum '[La4 Yb4 Si4]'
_cell_volume [336.5035]
_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
[
  La  La0  4  0.0334  0.2500  0.6681  1.0
  Yb  Yb1  4  0.1409  0.2500  0.0674  1.0
  Si  Si2  4  0.2472  0.7500  0.8758  1.0
]