data_[Pm10Ni2Sn16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ni  1.9100  1.3500  0.7400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [9.4112]
_cell_length_b [9.4112]
_cell_length_c [8.7801]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [Pm5NiSn8]
_chemical_formula_sum '[Pm10 Ni2 Sn16]'
_cell_volume [777.6603]
_cell_formula_units_Z [2]
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  0.1133  0.7453  0.1484  1
  Pm  Pm1  2  0.0000  0.0000  0.5000  1
  Ni  Ni2  2  0.0000  0.5000  0.7500  1
  Sn  Sn3  8  0.0669  0.8048  0.7946  1
  Sn  Sn4  8  0.0732  0.6538  0.5017  1
]