data_[Gd2Al2Cu4Si2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Al  1.6100  1.2500  0.6750
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [3.9574]
_cell_length_b [3.9574]
_cell_length_c [10.6208]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [GdAlCu2Si]
_chemical_formula_sum '[Gd2 Al2 Cu4 Si2]'
_cell_volume [166.3335]
_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
[
  Gd  Gd0  2  0.0000  0.5000  0.7500  1
  Al  Al1  2  0.0000  0.0000  0.0000  1
  Cu  Cu2  4  0.0000  0.5000  0.1354  1
  Si  Si3  2  0.0000  0.0000  0.5000  1
]