data_[Sr4Sm8Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sm  1.1700  1.8500  1.2290
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.5104]
_cell_length_b [15.5925]
_cell_length_c [8.4965]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sr(SmBi)2]
_chemical_formula_sum '[Sr4 Sm8 Bi8]'
_cell_volume [730.0293]
_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
[
  Sr  Sr0  4  0.0000  0.3452  0.7500  1
  Sm  Sm1  4  0.0000  0.0076  0.7500  1
  Sm  Sm2  4  0.0000  0.3234  0.2500  1
  Bi  Bi3  8  0.0000  0.1557  0.5012  1
]