data_[Nd18Sm36Sn3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [12.0962]
_cell_length_b [12.0962]
_cell_length_c [15.2995]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Nd6Sm12Sn]
_chemical_formula_sum '[Nd18 Sm36 Sn3]'
_cell_volume [1938.6828]
_cell_formula_units_Z [3]
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
[
  Nd  Nd0  18  0.0160  0.5899  0.6832  1
  Sm  Sm1  18  0.0003  0.1722  0.1861  1
  Sm  Sm2  18  0.0450  0.1960  0.4163  1
  Sn  Sn3  3  0.0000  0.0000  0.0000  1
]