data_[Pm16Pr4Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.7423]
_cell_length_b [16.6240]
_cell_length_c [8.8360]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm4PrSn]
_chemical_formula_sum '[Pm16 Pr4 Sn4]'
_cell_volume [843.4932]
_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  8  0.0000  0.3683  0.5639  1
  Pm  Pm1  4  0.0000  0.0329  0.2500  1
  Pr  Pr2  4  0.0000  0.1614  0.7500  1
  Pm  Pm3  4  0.0000  0.2316  0.2500  1
  Sn  Sn4  4  0.0000  0.4521  0.2500  1
]