data_[Pm1Cu8Pt2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Cu  1.9000  1.3500  0.8200
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [6.2135]
_cell_length_b [6.2135]
_cell_length_c [4.8619]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Pm(Cu4Pt)2]
_chemical_formula_sum '[Pm1 Cu8 Pt2]'
_cell_volume [187.7048]
_cell_formula_units_Z [1]
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  1  0.5000  0.5000  0.5000  1
  Cu  Cu1  8  0.1968  0.1968  0.2532  1
  Pt  Pt2  2  0.0000  0.5000  0.0000  1
]