data_[La2Fe2Si4Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Fe  1.8300  1.4000  0.8525
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [4.2207]
_cell_length_b [4.2207]
_cell_length_c [10.2979]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [LaFeSi2Ag]
_chemical_formula_sum '[La2 Fe2 Si4 Ag2]'
_cell_volume [183.4495]
_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
[
  La  La0  2  0.0000  0.5000  0.2500  1
  Fe  Fe1  2  0.0000  0.0000  0.5000  1
  Si  Si2  4  0.0000  0.5000  0.6311  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
]