data_[Ce4Nd12Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Nd  1.1400  1.8500  1.2765
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [6.5493]
_cell_length_b [17.7552]
_cell_length_c [6.5393]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [CeNd3Sn2]
_chemical_formula_sum '[Ce4 Nd12 Sn8]'
_cell_volume [760.4216]
_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
[
  Ce  Ce0  4  0.0000  0.0000  0.2500  1.0
  Nd  Nd1  8  0.2497  0.3234  0.5000  1.0
  Nd  Nd2  4  0.0000  0.5000  0.2500  1.0
  Sn  Sn3  8  0.2480  0.1385  0.5000  1.0
]