data_[Li2Sm2Si4Ir2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [4.1068]
_cell_length_b [4.1068]
_cell_length_c [10.0912]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [LiSmSi2Ir]
_chemical_formula_sum '[Li2 Sm2 Si4 Ir2]'
_cell_volume [170.1990]
_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
[
  Li  Li0  2  0.0000  0.5000  0.7500  1
  Sm  Sm1  2  0.0000  0.0000  0.0000  1
  Si  Si2  4  0.0000  0.0000  0.3794  1
  Ir  Ir3  2  0.0000  0.5000  0.2500  1
]