data_[Sm8Ga8Cu12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ga  1.8100  1.3000  0.7600
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [I2_13]
_cell_length_a [8.3052]
_cell_length_b [8.3052]
_cell_length_c [8.3052]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [199]
_chemical_formula_structural [Sm2Ga2Cu3]
_chemical_formula_sum '[Sm8 Ga8 Cu12]'
_cell_volume [572.8648]
_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
[
  Sm  Sm0  8  0.0160  0.4840  0.5160  1
  Ga  Ga1  8  0.2177  0.2823  0.7177  1
  Cu  Cu2  12  0.0000  0.2500  0.2102  1
]