data_[Sm6Cu4Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8360]
_cell_length_b [4.0658]
_cell_length_c [8.1374]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0218]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm3(CuSi2)2]
_chemical_formula_sum '[Sm6 Cu4 Si8]'
_cell_volume [353.0351]
_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
[
  Sm  Sm0  4  0.1623  0.5000  0.6678  1.0
  Sm  Sm1  2  0.0000  0.0000  0.0000  1.0
  Si  Si2  4  0.0589  0.0000  0.3884  1.0
  Cu  Cu3  4  0.1115  0.5000  0.2817  1.0
  Si  Si4  4  0.2177  0.5000  0.0597  1.0
]