data_[Pm10Tm2Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.5150]
_cell_length_b [5.0028]
_cell_length_c [6.8983]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8652]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm5TmSi4]
_chemical_formula_sum '[Pm10 Tm2 Si8]'
_cell_volume [535.3723]
_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  0.1640  0.0000  0.4990  1
  Pm  Pm1  4  0.1658  0.0000  0.0076  1
  Pm  Pm2  2  0.0000  0.5000  0.5000  1
  Tm  Tm3  2  0.0000  0.5000  0.0000  1
  Si  Si4  4  0.0080  0.0000  0.7618  1
  Si  Si5  4  0.1748  0.5000  0.2491  1
]