data_[Pm10Al4Si10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Al  1.6100  1.2500  0.6750
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.9158]
_cell_length_b [4.1736]
_cell_length_c [11.5076]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.7254]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm5Al2Si5]
_chemical_formula_sum '[Pm10 Al4 Si10]'
_cell_volume [550.9754]
_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  4  0.1311  0.5000  0.3285  1
  Pm  Pm1  4  0.1818  0.5000  0.0776  1
  Pm  Pm2  2  0.0000  0.0000  0.5000  1
  Al  Al3  4  0.1151  0.5000  0.7598  1
  Si  Si4  4  0.0642  0.0000  0.8245  1
  Si  Si5  4  0.2061  0.5000  0.6426  1
  Si  Si6  2  0.0000  0.0000  0.0000  1
]