data_[Pm2Si2Pt8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Si  1.9000  1.1000  0.5400
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [7.7303]
_cell_length_b [3.9099]
_cell_length_c [6.9815]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [PmSiPt4]
_chemical_formula_sum '[Pm2 Si2 Pt8]'
_cell_volume [211.0146]
_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  2  0.2500  0.0000  0.3719  1
  Si  Si1  2  0.2500  0.0000  0.7936  1
  Pt  Pt2  4  0.0596  0.5000  0.6927  1
  Pt  Pt3  2  0.0000  0.0000  0.0000  1
  Pt  Pt4  2  0.2500  0.5000  0.0478  1
]