data_[Pm4Nd12Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [8.2681]
_cell_length_b [15.9163]
_cell_length_c [5.2956]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [PmNd3Sn]
_chemical_formula_sum '[Pm4 Nd12 Sn4]'
_cell_volume [696.8851]
_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
[
  Pm  Pm0  4  0.0000  0.0914  0.5000  1
  Nd  Nd1  4  0.0000  0.1629  0.0000  1
  Nd  Nd2  4  0.1738  0.5000  0.5000  1
  Nd  Nd3  4  0.2500  0.2500  0.5000  1
  Sn  Sn4  4  0.0000  0.3662  0.0000  1
]